GE Glass Fiber Binder Filters

Product Information

Photomicrograph of the surface of a glass fiber filter.

Acrylic binder High dirt holding capacity Biologically inert Bonding reduces media migration

Applications

• Protect final filter to extend its life
• Clarification of particulate laden solutions
• Filtration of long duration under pressure
• Binder increases high dirt loading capacity

Products

Part # Model # Description Pore Size Filter Size Qty. Price 1215543 G15WP02200 GE Glass Fiber Binder Filter 0.5 micron 22 mm 100 $51 1215544 G15WP02500 GE Glass Fiber Binder Filter 0.5 micron 25 mm 100 $51 1215548 G15WP04700 GE Glass Fiber Binder Filter 0.5 micron 47 mm 100 $70 1215549 G15WP07525 GE Glass Fiber Binder Filter 0.5 micron 75 mm 25 $77 1215550 G15WP09025 GE Glass Fiber Binder Filter 0.5 micron 90 mm 25 $85 1215551 G15WP12425 GE Glass Fiber Binder Filter 0.5 micron 124 mm 25 $85 1215553 G15WP14225 GE Glass Fiber Binder Filter 0.5 micron 142 mm 25 $87 1215554 G15WP25725 GE Glass Fiber Binder Filter 0.5 micron 257 mm 25 $199 1215559 G20WP02500 GE Glass Fiber Binder Filter 1 micron 25 mm 100 $45 1215561 G20WP04200 GE Glass Fiber Binder Filter 1 micron 42 mm 100 $55 1215562 G20WP04700 GE Glass Fiber Binder Filter 1 micron 47 mm 100 $55 1215563 G20WP07525 GE Glass Fiber Binder Filter 1 micron 75 mm 25 $40 1215564 G20WP09025 GE Glass Fiber Binder Filter 1 micron 90 mm 25 $43 1215565 G20WP12425 GE Glass Fiber Binder Filter 1 micron 124 mm 25 $62 1215567 G20WP14225 GE Glass Fiber Binder Filter 1 micron 142 mm 25 $62 1215568 G20WP25725 GE Glass Fiber Binder Filter 1 micron 257 mm 25 $185 1215571 G25WP01300 GE Glass Fiber Binder Filter 1 micron 13 mm 100 $42 1215573 G25WP02500 GE Glass Fiber Binder Filter 1 micron 25 mm 100 $43 1215576 G25WP04200 GE Glass Fiber Binder Filter 1 micron 42 mm 100 $46 1215577 G25WP04700 GE Glass Fiber Binder Filter 1 micron 47 mm 100 $55 1215579 G25WP09025 GE Glass Fiber Binder Filter 1 micron 90 mm 25 $40 1215580 G25WP12425 GE Glass Fiber Binder Filter 1 micron 124 mm 25 $62 1215582 G25WP14225 GE Glass Fiber Binder Filter 1 micron 142 mm 25 $73 1215583 G25WP25725 GE Glass Fiber Binder Filter 1 micron 257 mm 25 $145

Product Description

Glass Fiber with Binders

GE glass fiber are biologically inert, autoclavable and highly resistant to oxidizing agents and weak acids. Glass fiber can be used to extend the life of a final filter as a prefilter or they can be used alone for low cost sample clarification. GE glass fiber with binders are composed of borosilicate glass fibers woven into a porous matrix and bonded by an acrylic resin. This bonding produces a filter that reduces media migration and has the strength required for high-volume aqueous filtrations. Glass fiber filters with a binder are usually recommended for filtrations of long duration under pressure.

Prefilters increase the speed of the filtration process by trapping large particles before they reach the final membrane filter. Subsequently, filtration time is cut down and the frequency and cost of replacing membrane filters is reduced. For upstream protection of a membrane within a filter holder, the use of a prefilter that is slightly smaller in diameter than the main filter is recommended. The smaller diameter allows the prefilter to fit inside the O-ring or filter funnel holder seal, thereby ensuring a positive membrane seal. If used as the main filter medium, a prefilter with a diameter exactly the same size as the filter holder is recommended.

Glass fiber filters are classed as "nominal" rather than "absolute" filters. A glass fiber filter rated at 1 µm usually means that the filter will retain some percentage, for example 95%, of all particles of that size or greater. Because of the high dirt-loading capacity of glass fiber filters, they are often used to protect membrane filters, giving a combination of excellent throughput and absolute retention.

G15 Glass Fiber Prefilters with Binders

• Nominal pore size . . .. 0.5 µm
• High retention efficiency
• Limited dirt-handling capacity
• Protection of 0.2 µm to 0.8 µm final filters
• Autoclavable

G20 Glass Fiber Prefilters with Binders

• Nominal pore size.... 1.0 µm
• Surface capture of particles
• Average retention efficiency
• Higher dirt-handling capacity
• Protection of 0.8 µm final filters and larger pore sizes
• Autoclavable

G25 Glass Fiber with Binders

• Nominal pore size.... 1.0 µm
• Depth particle capture
• Thickness is approximately 3.5 greater than G20.
• Recommended for solutions with heavy contaminate loads
• Average retention efficiency
• Highest dirt-handling capacity
• Protection of 0.8 µm final filters and larger pore sizes
• Autoclavable

Specifications

Acrylic Binder present
Maximum operating temperature is 165°C (325°F).

For Additional Information

Please call GE Osmonics' Labstore Support at (800) 444-8212, by fax (952) 988-6662 or email us for questions, pricing and availability. For international support and distributor locations, call +1-952-988-6665 or email us. Many of the standard technical questions are already answered in our Frequently Asked Questions.