Heat-resistant black fabric used for controlling light spill and protecting equipment from fixture heat.
Technical Details
Black Wrap consists of a 25-micrometer thin aluminum foil with a black polyester coating on one side. The foil is malleable down to a radius of 2 mm without cracking and is heat-stable up to 180°C. Standard rolls have a width of 30 cm and a length of 7.6 m. Light absorption is 98.2% on the black side, while the silver side has a reflectivity of 85%. The foil can be shaped by hand without tools and retains its shape permanently.
History & Development
Rosco developed Black Wrap in 1954 in response to the growing demands of television production for more precise light control. Previously, lighting technicians used improvised solutions such as blackened metal sheets or cardboard. In 1962, Rosco introduced the double-thick version, "Heavy Duty Black Wrap." Lee Filters launched a competing version called "Black Foil" in 1971. Since the 1980s, Black Wrap has been standard equipment in every professional film production.
Practical Application in Film
Black Wrap shapes light spots, eliminates light spill, and creates hard shadow edges. In "Blade Runner 2049," Roger Deakins used Black Wrap for precise facial modeling in the interrogation scenes. The foil is attached directly to light fixtures to extend barn doors or remove mid-tones from the illumination. Typical applications include shading camera lenses, shaping window light situations, and creating negative fill areas. Its malleability allows for complex three-dimensional light shaping without additional rigging.
Comparison & Alternatives
Unlike rigid barn doors, Black Wrap conforms to any desired shape and weighs only 2.7 g/m². Cinefoil from Roscotex offers identical properties, while LEE Black Foil is minimally thicker (0.03 mm). Modern LED panels with digital light shaping partially replace Black Wrap but do not achieve the absolute precision in shading. Duvetyne fabric absorbs light similarly effectively but cannot be shaped as precisely. Black Wrap remains indispensable for pinpoint light correction and spontaneous adjustments on set.