Lanmar #66-3 is a 3 mil porous ptfe coated fiberglass fabric featuring controlled porosity that allows air and gas transmission while maintaining PTFE non-stick and chemical-resistant surface properties.

Specifications: 3 mil thickness. Coating weight: .8 oz/yd². Dielectric strength: 125V. Standard width: 37.5 inches. Rated -400 to +600°F.

Common applications include through-air bonding equipment, air filtration media, hot-air non-woven bonding, textile finishing equipment, and breathable release surfaces. Supplied in roll form. Available custom slit to width.