Shop for TUFFAK® WC (Welding Curtain) Polycarbonate Sheet. Protect employees from intense and harmful light emitted during arc welding with this AWS F2:3M:2011 compliant polycarbonate sheet. TUFFAK® WC has outstanding impact strength, superior dimensional stability, high temperature resistance, and high optical clarity while effectively blocking 100% of eye damaging UV light. These welding curtains and screens are easy to fabricate and come in a collection of shaded colors. Can’t find what you need? Get a quote.