Glass Microfiber

Glass microfiber filters offered in this product range are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. These filters offer many advantages in a wide range of analytical applications.

The fibers used to manufacture these depth filters are smooth and uniform. This permits their characteristically high flow rates while allowing retention of exceptionally small particles and high load capacity. These characteristics are particularly important in applications involving high concentrations of particulate or gelatinous substances. In choosing the appropriate filter for a specific application, careful consideration should be given to the physical form and concentration of the material to be captured by the filter.

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Glass Microfiber Grades and Descriptions

Grade Nomenclature Particle Retention (μm) Material Type Thickness (mm) Filtration Speed (sec.) Basis Weight (g/m2)
 A-83  <0.50

 Binderless NanoScale Borosilicate Glass Microfiber

 0.40  84  82
A 1.60 Binderless Borosilicate Glass Microfiber 0.30 12 55
B 1.00 Binderless Borosilicate Glass Microfiber 0.65 30 140
C 1.20 Binderless Borosilicate Glass Microfiber 0.28 25 50
D 2.70 Binderless Borosilicate Glass Microfiber 0.60 5 120
E 1.50 Binderless Borosilicate Glass Microfiber 0.35 12 70
F 0.70 Binderless Borosilicate Glass Microfiber 0.40 80 80
A-E 1.00 Binderless Borosilicate Glass Microfiber 0.33 15 60
TSS 1.50 Binderless Borosilicate Glass Microfiber 0.43 47 64
VSS® 1.50 High Heat  Binderless Borosilicate Glass Microfiber 0.43 47 64
934-AH® 1.50 High Heat Binderless Borosilicate Glass Microfiber 0.43 47 64
Quartz 2.20 Ultra High Heat Binderless Quartz Glass Microfiber 0.47 <5 85
TCLP 0.70 Acid Treated and Washed Binderless Borosilicate Glass Microfiber 0.40 80 80
  • Products
  • Material Specifications
  • Capabilities

GRADE A-83 - Imagine the loading capacity of a binderless glass microfiber filter with the tightly regulated pore size of a microfiltration membrane.  

Now it's possible with Grade A83.  This new grade has a particle retention of 0.5µm.  It has >20x loading capacity of an equivalent porosity MCE or CN membrane and >15x the flow rate.  Back pressure is nearly non-existent in comparison to surface membranes.

Chemically inert, pure binderless borosilicate glass with no sizing additives or other surfactants. Low background noise in LC/GC/MS and very low extractables in presence of aggressive solvents.  There are many filter materials which make the claim of "nano-scale" fiber, but Grade A83 is tested by an independent laboratory using the latest in fiber analysis and SEM image quantification.  With >85% of the fiber content between 300nm -100nm, this material is truly one of the highest surface area binderless glass microfiber products on the market today.

GRADE A - Fine porosity, fast flow rate, with a 1.6µm size particle retention. Frequently used in the filtration of precipitated proteins and cells. Ideally suited for use as a filter for radioimmuno assay of weak beta emitters by scintillation counting and gravimetric determination of airborne particulate. Binderless borosilicate glass micro fiber.

GRADE B - Fine porosity, medium to fast flow rate, with a 1.0µm size particle retention. Ideally suited for the collection of biochemical polymers that have been precipitated by denaturation. This material is twice as thick as Grade A with a higher loading capacity. May also be used as a solid particulate filter for gasses or as a prefilter. Binderless borosilicate glass microfiber.

GRADE C - Fine porosity, fast flow rate, with a 1.2µm size particle retention. Primarily used for RIA procedures and harvesting lymphocytes. Binderless borosilicate glass microfiber.

GRADE D - Coarse porosity, fast flow rate, with a 2.7µm size particle retention. Well suited for higher volume and repetitive laboratory filtering. Also ideally used as a general pre-filter to extend primary filter life. Binderless borosilicate glass microfiber.

GRADE E - Fine porosity, fast flow rate, with a 1.5µm size particle retention. This material is an economical media for suspended particle analysis in water, cell harvesting, pre-filtration and air monitoring applications. Binderless borosilicate glass microfiber.

GRADE F - Fine porosity, medium flow rate, with a 0.7µm size particle retention. Frequently used with Grade D to filter diluted aqueous solutions containing strong oxidizing, acidic, or alkaline components prior to laser spectroscopy. May also be used for TCLP analysis and collecting extremely fine precipitated proteins, including immunoglobulins. Binderless borosilicate glass microfiber.

934-AH® - Fine porosity, fast flow rate, with a 1.5µm size particle retention. This material is the standard for volatile suspended solids content and related measurements (Standard Methods 2540D and EPA Method 160.2). Also widely used in cell harvesting applications and RIA scintillation counting. Binderless borosilicate glass microfiber enables use up to 550°C.

GRADE A-E - Fine porosity and fast flow rate, with a 1.0µm size particle retention. Binderless borosilicate glass microfiber. DOP efficiency is 99.98%. Primarily used in suspended solids and air monitoring.

Specialty Binderless Glass Microfiber Grades

QUARTZ A - Fine porosity with a 99.999% efficiency in air filtration for the retention of 2.20µm particles. Flow rate 1.1 - 1.35 m3/min (Resistance 95mmH20@10.5 ft/min). Primarily used in air pollution monitoring, atomic absorption spectroscopy, flame emission spectrometry and other applications where an extremely critical analysis is needed. Effective temperature range of up to 1000 °C. Binderless quartz micro fiber

Grade TSS - Binderless high efficiency (HEPA type) filter medium.  Liquid filtration properties have been specifically designed for EPA Methods 2540C and 2540D for testing dissolved and suspended solids in water and wastewater.  High flow rate with high capacity.  Binderless borosilicate glass fiber media has no added extractables to aid in the elimination of sample contamination.  Excellent wet strength.  Other common applications include gravimetric analysis of air pollutants, membrane support pads, membrane prefilters, clarification of reagent and buffer solutions, filtration of eluent for HPLC and moisture analysis pads.

Grade VSS® - A binder free material manufactured using a proprietary glass chemistry which permits usage in high heat applications beyond typical borosilicate glass blends.  Ideally suited for determination of "Fixed & Voaltile Solids Ignited at 550°C Method 2540E.  Low fiber shedding improves quality assurance of test results and low percentage of weight loss when used in gravimetric tests.  High loading capacity is an attribute of the high surface area and complex pore structure.  Material is also compliant with the requirements of standard methods 2540C & 2540D and EPA Method 160.2 for establishing water quality in suspended solids content.  Total Suspended Solids (TSS) are defined as those which are retained by a "glass-fiber filter disk without organic binder".  Also widely used in air pollution monitoring, high temperature flue gas and filtration of high temperature solvents.

Grade TCLP - Binderless borosilicate glass microfiber filter media with a particle retention of 0.7µm.  Acid treated and multi-stage deionized water rinsed to conform to EPA Method 1311.  Inherently low Barium and Zinc Borosilicate Glass and resistant to acids and bases.  Recommended for use in U.S. EPA Method 1311 "Toxicity Characteristic Leaching Procedure".  Method scope:  "The TCLP is designed to determine the mobility of both organic and inorganic analytes present in liquid, solid and multiphasic wastes."  Saves time and waste disposal expense in the lab by eliminating technician acid treating and rinsing procedures. 

 

Product Catalog #

Product Description

A2100 Grade A cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
A2400 Grade A cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
A2500 Grade A cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
A3500 Grade A cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
A3700 Grade A cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
A4250 Grade A cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
A4700 Grade A cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
A5500 Grade A cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
A7000 Grade A cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
A9000 Grade A cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
A1100 Grade A cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media
A1250 Grade A cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
A1500 Grade A cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
A9000-2 Grade A cut 9.0cm diameter - 50/pk Binderless glass microfiber filter media
A1100-2 Grade A cut 11.0cm diameter - 50/pk Binderless glass microfiber filter media
A1250-2 Grade A cut 12.5cm diameter - 50/pk Binderless glass microfiber filter media
A1500-2 Grade A cut 15.0cm diameter - 50/pk Binderless glass microfiber filter media
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B2100 Grade B cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
B2400 Grade B cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
B2500 Grade B cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
B3500 Grade B cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
B3700 Grade B cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
B4250 Grade B cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
B4700 Grade B cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
B5500 Grade B cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
B7000 Grade B cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
B9000 Grade B cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
B1100 Grade B cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media
B1250 Grade B cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
B1500 Grade B cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
B9000-4 Grade B cut 9.0cm diameter - 25/pk Binderless glass microfiber filter media
B1100-4 Grade B cut 11.0cm diameter - 25/pk Binderless glass microfiber filter media
B1250-4 Grade B cut 12.5cm diameter - 25/pk Binderless glass microfiber filter media
B1500-4 Grade B cut 15.0cm diameter - 25/pk Binderless glass microfiber filter media
B9000-2 Grade B cut 9.0cm diameter - 50/pk Binderless glass microfiber filter media
B1100-2 Grade B cut 11.0cm diameter - 50/pk Binderless glass microfiber filter media
B1250-2 Grade B cut 12.5cm diameter - 50/pk Binderless glass microfiber filter media
B1500-2 Grade B cut 15.0cm diameter - 50/pk Binderless glass microfiber filter media
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C2100 Grade C cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
C2400 Grade C cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
C2500 Grade C cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
C3500 Grade C cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
C3700 Grade C cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
C4250 Grade C cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
C4700 Grade C cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
C5500 Grade C cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
C7000 Grade C cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
C9000 Grade C cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
C1100 Grade C cut 11cm diameter - 100/pk Binderless glass microfiber filter media
C1250 Grade C cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
C1500 Grade C cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
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D2100 Grade D cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
D2400 Grade D cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
D2500 Grade D cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
D3500 Grade D cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
D3700 Grade D cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
D4250 Grade D cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
D4700 Grade D cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
D5500 Grade D cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
D7000 Grade D cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
D9000 Grade D cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
D1100 Grade D cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media
D1250 Grade D cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
D1500 Grade D cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
D9000-4 Grade D cut 9.0cm diameter - 25/pk Binderless glass microfiber filter media
D1100-4 Grade D cut 11.0cm diameter - 25/pk Binderless glass microfiber filter media
D1250-4 Grade D cut 12.5cm diameter - 25/pk Binderless glass microfiber filter media
D1500-4 Grade D cut 15.0cm diameter - 25/pk Binderless glass microfiber filter media
D9000-2 Grade D cut 9.0cm diameter - 50/pk Binderless glass microfiber filter media
D1100-2 Grade D cut 11.0cm diameter - 50/pk Binderless glass microfiber filter media
D1250-2 Grade D cut 12.5cm diameter - 50/pk Binderless glass microfiber filter media
D1500-2 Grade D cut 15.0cm diameter - 50/pk Binderless glass microfiber filter media
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E2100 Grade E cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
E2400 Grade E cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
E2500 Grade E cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
E3500 Grade E cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
E3700 Grade E cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
E4250 Grade E cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
E4700 Grade E cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
E5500 Grade E cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
E7000 Grade E cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
E9000 Grade E cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
E1100 Grade E cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media
E1250 Grade E cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
E1500 Grade E cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
ES-810 Grade E sheets 8x10 inch - 100/pk Binderless glass microfiber filter media
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F2100 Grade F cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
F2400 Grade F cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
F2500 Grade F cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
F3500 Grade F cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
F3700 Grade F cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
F4250 Grade F cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
F4700 Grade F cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
F5500 Grade F cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
F7000 Grade F cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
F9000 Grade F cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
F1100 Grade F cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media
F1250 Grade F cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
F1500 Grade F cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
F9000-4 Grade F cut 9.0cm diameter - 25/pk Binderless glass microfiber filter media
F1100-4 Grade F cut 11.0cm diameter - 25/pk Binderless glass microfiber filter media
F1250-4 Grade F cut 12.5cm diameter - 25/pk Binderless glass microfiber filter media
F1500-4 Grade F cut 15.0cm diameter - 25/pk Binderless glass microfiber filter media
F9000-2 Grade F cut 9.0cm diameter - 50/pk Binderless glass microfiber filter media
F1100-2 Grade F cut 11.0cm diameter - 50/pk Binderless glass microfiber filter media
F1250-2 Grade F cut 12.5cm diameter - 50/pk Binderless glass microfiber filter media
F1500-2 Grade F cut 15.0cm diameter - 50/pk Binderless glass microfiber filter media
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AH2100 934-AH ® cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
AH2400 934-AH ® cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
AH2500 934-AH ® cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
AH3200 934-AH ® cut 3.2cm diameter - 100/pk Binderless glass microfiber filter media
AH3500 934-AH ® cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
AH3700 934-AH ® cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
AH4250 934-AH ® cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
AH4700 934-AH ® cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
AH5500 934-AH ® cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
AH7000 934-AH ® cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
AH8260 934-AH ® cut 8.26cm diameter - 100/pk Binderless glass microfiber filter media
AH9000 934-AH ® cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
AH1100 934-AH ® cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media
AH1250 934-AH ® cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
AH1500 934-AH ® cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
AHS810 934-AH ® 8x10 inch sheets - 100/pk Binderless glass microfiber filter media
AH1100-2 934-AH ® cut 11.0cm diameter - 50/pk Binderless glass microfiber filter media
AH1250-2 934-AH ® cut 12.5cm diameter - 50/pk Binderless glass microfiber filter media
AH1500-2 934-AH ® cut 15.0cm diameter - 50/pk Binderless glass microfiber filter media
AHS810-2 934-AH ® 8x10 inch sheets - 50/pk Binderless glass microfiber filter media
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VSS2100 Grade VSS® cut 2.1cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS2400 Grade VSS® cut 2.4cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS2500 Grade VSS® cut 2.5cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS3200 Grade VSS® cut 3.2cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS3500 Grade VSS® cut 3.5cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS3700 Grade VSS® cut 3.7cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS4250 Grade VSS® cut 4.25cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS4700 Grade VSS® cut 4.7cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS5500 Grade VSS® cut 5.5cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS7000 Grade VSS® cut 7.0cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS8260 Grade VSS® cut 8.26cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS9000 Grade VSS® cut 9.0cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS1020 Grade VSS® cut 10.20cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS1100 Grade VSS® cut 11.0cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS1250 Grade VSS® cut 12.5cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSS1500 Grade VSS® cut 15.0cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
VSSS810 Grade VSS® cut 8 x 10 inch sheets - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids
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TSS2100 Grade TSS cut to 2.1cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS2400 Grade TSS cut to 2.4cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS2500 Grade TSS cut to 2.5cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS3200 Grade TSS cut to 3.2cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS3500 Grade TSS cut to 3.5cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS3700 Grade TSS cut to 3.7cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS4250 Grade TSS cut to 4.25cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS4700 Grade TSS cut to 4.7cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS5500 Grade TSS cut to 5.5cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS7000 Grade TSS cut to 7.0cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS8260 Grade TSS cut to 8.26cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS9000 Grade TSS cut to 9.0cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS1020 Grade TSS cut to 10.20cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS1100 Grade TSS cut to 11.0cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS1250 Grade TSS cut to 12.5cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSS1500 Grade TSS cut to 15.0cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids
TSSS810 Grade TSS cut to 8 x 10 inch sheets - 100/pk Binderless glass microfiber for determination of total suspended solids
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Q2100 Quartz microfiber, 2.1cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q2400 Quartz microfiber, 2.4cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q2500 Quartz microfiber, 2.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q3200 Quartz microfiber, 3.2cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q3500 Quartz microfiber, 3.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q3700 Quartz microfiber, 3.7cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q4250 Quartz microfiber, 4.25cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q4500 Quartz microfiber, 4.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q4700 Quartz microfiber, 4.7cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q5000 Quartz microfiber, 5.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q5500 Quartz microfiber, 5.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q7000 Quartz microfiber, 7.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q8260 Quartz microfiber, 8.26cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q9000 Quartz microfiber, 9.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q1010 Quartz microfiber, 10.10cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q1100 Quartz microfiber, 11.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q1250 Quartz microfiber, 12.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q1500 Quartz microfiber, 15.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
QS810 Quartz microfiber, 8x10inch sheets, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk
Q5500-2 Quartz microfiber, 5.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q7000-2 Quartz microfiber, 7.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q8260-2 Quartz microfiber, 8.26cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q9000-2 Quartz microfiber, 9.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q1010-2 Quartz microfiber, 10.10cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q1100-2 Quartz microfiber, 11.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q1250-2 Quartz microfiber, 12.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q1500-2 Quartz microfiber, 15.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
QS810-2 Quartz microfiber, 8x10inch sheets, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk
Q1100-4 Quartz microfiber, 11.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 25/pk
Q1250-4 Quartz microfiber, 12.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 25/pk
Q1500-4 Quartz microfiber, 15.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 25/pk
QS810-4 Quartz microfiber, 8x10inch sheets, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 25/pk
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AE2100 Grade A-E cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media
AE2400 Grade A-E cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media
AE2500 Grade A-E cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media
AE3500 Grade A-E cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media
AE3700 Grade A-E cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media
AE4250 Grade A-E cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media
AE4700 Grade A-E cut 4.7cm diameter - 100/pk Binderless glass microfiber filter media
AE5500 Grade A-E cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media
AE7000 Grade A-E cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media
AE9000 Grade A-E cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media
AE1100 Grade A-E cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media
AE1250 Grade A-E cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media
AE1500 Grade A-E cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media
AES810 Grade A-E cut 8x10 inch sheets - 100/pk Binderless glass microfiber filter media
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TCLP-1 TCLP Grade Acid Treated, 4.7cm - 100/Pk Binderless glass microfiber filter media
TCLP-2 TCLP Grade Acid Treated, 9.0cm - 50/Pk Binderless glass microfiber filter media
TCLP-3 TCLP Grade Acid Treated, 11.0cm - 50/Pk Binderless glass microfiber filter media
TCLP-4 TCLP Grade Acid Treated, 12.5cm - 50/Pk Binderless glass microfiber filter media
TCLP-5 TCLP Grade Acid Treated, 14.2cm - 50/Pk Binderless glass microfiber filter media
TCLP-6 TCLP Grade Acid Treated, 15.0cm - 50/Pk Binderless glass microfiber filter media
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The trademark 934-AH® is owned by GE Healthcare/Whatman Inc. and used under exclusive license for purposes of private label.

Depth filtration categorizes filter media that traps particulate within the random matrix of fibers found within the thickness of the media. The efficiency rating of the filter is characteristic of the complex void space structure that develops as the fibers overlap. The fibrous material within the filter is commonly glass microfiber, cellulose or polypropylene. In depth filters using glass microfiber, the purity of the filter is dictated by the presence of, if any, binder material that acts as a strengthening agent and aids in holding the fibers together. All of the media described on this page are 100% borosilicate glass and free of binders.

Because of the characteristically high flow rates of depth filters, they are generally used in applications such as single and multi process removal of sediment and coarse particulate. Glass microfiber filters without binders are an ideal medium to entrap sediment for further analysis and counting due to the inert matrix. Also, depth filtration media are commonly used for pre-filtration prior to surface filtration with substrates such as membranes.

Material Specifications Guide

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Glass Microfiber Characteristics at a Glance

  • Fastest flow rate
  • High load capacity
  • Retention of particles to sub-micron size
  • Temperature range up to 500°C
  • Use in liquid and gaseous filtration
  • Inert fiber composition
  • Free of binders or additives

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Tremont offers an impressive list of manufacturing capabilities and expertise in glass microfiber and cellulose filter media.  We leverage a longstanding and contractual relationship between several mills to put 6 papermaking machines and formers into production.  With this enormous capacity at our disposal, we are able to take a project from lab bench through pilot scale and ultimately full production with ease.

Our partner mill ouput exceeds 120 grade variants manufactured in the USA and internationally.   With chemists and scientists of several disciplines, experienced papermakers, the finest controls-on-machine plus a rigorous QA protocol, it is not often a project challenge is beyond our capability.

Paper making capabilities:

  • Paper making machines in flat bed, slant bed, high speed fourdrinier and rotary forming styles.
  • Furnish capabilities of: glass blends, cotton cellulose, soft wood, cotton/wood pulp, synthetics
  • Various levels of water filtration, including R.O. for superior purity in analytical and diagnostic applications.
  • Web widths from 24 inch (60.9cm) to 72 inch (182.8cm).
  • Basis weights from 8lb to 138lb @ 3000ft2 (13g/m2 to 225g/m2).
  • Binder free, Binder burn off, Acrylic, PVA and hybrid chemistries.
  • Gantry mounted traversing densitometry as well as most other high-resolution verification sensors.
  • Static pressure, mixed and multi-stage head boxes.
  • Binderless, mixed box, spray on and pulper-saturation style binder introduction.
  • Single and multi-stage vacuum boxes.
  • Several screen variants for very high consistency formation.
  • Wet stream or dry deckle trim.
  • Unique end of machine board cut-off capability for very high density, high basis weight celluloses.
  • FDA grade manufacturing capabilities.
  • Lot selection, furnish verification and supply chain assurance.
  • Cotton batch traceability "to farm" with unique commodity procurement services.

Converting capabilities:

After the papermaking process is complete, our experienced converting staff brings your project from large master rolls down to narrow reels or sheets with ease.  Sheeting, die cutting and other unique converting operations are performed at our Hawthorne, NJ facility under our strict ISO production environments.

  • High speed rotary knife sheeting (+/- 0.03125 inch).
  • Low speed, multi roll CNC sheeting (+/- 0.03125 inch).
  • Low tensile strength sheeting capabilities handling the most challenging binderless glass grades to 60 inch web width.
  • Vacuum stack counting with laser verification and tab insertion minimum 5 sheet count.
  • Narrow roll slitting down to 1/4inch web width even in low tensile glass microfiber.
  • Shaftless rewind with core ID's down to 1/2inch ID.
  • Die cutting in manual, semi-automatic and automatic repeating modes.  Slow speed, platen, clicker, c-frame, fixed tool and bottom-up presses.
  • Tonnage from 1 to 140ton in hydraulic and mechanical types.
  • Narrow web <5.125 inch (13cm) rotary die cutting with unique "zero-tensile" capabilities, inline micro perforation and rotary parts cut-off.  Vacuum in-field parts removal.
  • Programmable guillotine cutters from 30 to 44 inch (76.2cm – 111.76cm) width.
  • Spreading table station for woven fabrics fabrication.
  • Hole drilling, slotting and complex notching.
  • Heat treating processes ranging from low temp, long exposure to flash and 1100°C muffle furnace treatments.
  • Laminating via heat set, single and dual surface in web widths of 60 inch.

Glass Microfiber

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