Lanmar #Black4F is a 4 mil black PTFE coated fiberglass fabric. The black PTFE coating delivers the non-stick, chemical-resistant, and high-temperature properties of standard PTFE fiberglass fabric with a black finish suited for heat-absorbing, light-blocking, and specialty processing applications.

Specifications: 4 mil thickness. Coating weight: .4321 oz/yd². Break strength (warp x fill): 115 lb/in. Standard width: 38 inches.

Common applications include heat-absorbing oven surfaces, light-blocking non-stick covers, UV curing equipment, and specialty processing surfaces. Supplied in roll form. Available custom slit to width.