Glass Fiber Filters
- Rapid Flow Rate - Movement of liquid laterally along the fibers and vertically through the filter and a lack of porosity and swelling of individual fibers combine to provide maximum flow efficiency.
- Fine Particle Retention - By combining different fiber diameters, varying pore sizes and distributions can be attained. The retention range of Ahlstrom's Glass Fiber Filter Papers extends downward to 0.7 µm for maximum filtration efficiency.
- High Loading Capacity - Unlike cellulose filters whose fibrous matrices clog rapidly when filtering high particulate solutions, glass fiber filter papers will continue to filter a much greater volume prior to loading.
- Chemical and Thermal Resistance - Glass fiber filter papers maintain their operational integrity in the presence of acids, alkalis, most organic solvents and to temperatures of 500°C.
- Long SheIf Life - Glass fiber filter papers do not absorb moisture and will not harden or yellow. Under normal conditions these filters can be stored indefinitely.
Binder-Free Glass Fiber Filter Paper
These grades contain no binders or other additives that may cause interference in sensitive enzymatic or other chemical reactions. Ahlstrom's Binder-Free Glass Fiber Filter Papers are ideal for use in water and wastewater analysis, gravimetric analysis involving ignition of the sample and filtration of hot gases and liquids.
Glass Fiber Filter Paper with Binder
Glass fiber grades with added binder are ideal for use in applications requiring a stronger sheet with greater handling capability. The addition of a small amount of either latex or PVA binder significantly increases the wet and dry strengths of the material making them particularly suitable for pleating and mechanical handling.
Ahlstrom Paper Group, 122 West Butler Street, P.O. Box A, Mt. Holly Springs, PA 17065-0238. Tel: 717-486-5982; Fax: 717-486-6413.