LUMAsite® sheets are combustible. Fire precautions similar to those appropriate for wood-based products should be observed.

Fiberglass-reinforced acrylic classifies as a CC 2 material, which means that it exhibits a burning rate of less than 2-1/2-inches per minute when tested by the ASTM D-635 method.

Some reinforced acrylic varieties of LUMAsite® sheets, include Frost-SOS and White 1000-SOS, are available in a type FR (fire-retardant) that classifies as a CC 1 material in .090" and thicker gauges, which means that the material stops burning when tested by the ASTM D-635 method.

Type FR panels also fall into a Class C category (NFPA 255) in some thicknesses, which means that they exhibit flamespread and smoke density values within specific ranges when tested by the ASTM E-84 method. Additional information regarding burning characteristics can be supplied upon request.

Note that no fire-retardant version of the Crystal II or embedment varieties is available.