Acrylic (AC)
High Resistance to Hydrolysis and Good Temperature Resistance.
Guide to Acrylic Felt for Filter Bag Applications
Acrylic Felt (Homopolymer Acrylic Felt) – Normal maximum continuous operating temperature is 275°F. General applications include: dryers, electric furnaces, aluminum reduction, and primary or secondary smelting. The chemical resistance is satisfactory to most mineral and organic acids. Superior to polyamides and polyesters in this regard. Acrylic resistance to alkalis is inferior to most fibers except natural protein fibers such as silk and wool. Acrylic has fair resistance to most oxidizing agents and is superior to polyamides and protein fibers in this respect. It has excellent resistance to most common organic solvents. Overall, acrylic has good acid resistance, high resistance to hydrolysis and good temperature resistance. Acrylic is more costly than polyester and polypropylene.
Download our Fabric Filter Properties Guide to compare fabric characteristics to choose the best for your application.
Download our Chemical Compatibility Guide to compare fabric choice suitability for different chemicals.
ACRYLIC FELT OPTIONS
Available Finishes for Acrylic Felt:
- Plain (PL), Fire Retardant (FR), PTFE membrane (XP)
- Singed (SI), SlyHE (High efficiency), Glazed (GL)
- ST-01 (Oleophobic), ST-04 (Code 9), SlyCharge (EX)
- ST-08 (double dip ST-01), ST-09, ST-10, ST-12 (SS fibers), Epitropic (EP)
Available Weights for Acrylic Felt:
- 16 oz./yd2
- 18 oz./yd2
Acrylic Felt Common Finishes
Singed (SIAC) – The felt is singed on the dust cake side for improved cake release. The process involves exposing the surface fibers to an open flame that melts back the loose fiber ends to which dust particles could adhere.
Glazed (GLAC) – This process involves running the felt through two heated rollers to melt back the loose fiber ends improving the cake release. The process can also compress the felt to smooth the surface, further improving the cake release.
SlyTech-01 (ST-01) – Oleophobic -water and oil repellent finish. SlyTech-01 is a complete PTFE bath which provides an excellent cake release finish to each fiber. This finish is cheaper and more durable than a membrane that can be easily scratched.
The information provided on this website is intended as a guide for filter bag applications. SLY, LLC. makes no guarantee about the performance or results you can expect from the application of this information unless provided in writing from our staff.