Most other chroma key green screen and blue screen backdrops are thin, highly susceptible to wrinkles and extremely transparent when held up to light. EEFX chroma key blue and green screen backdrops are in a category of their own. Click on the thumbnail images to see diagrams of the technology behind our fabrics. Foam-Backed chroma key fabric's three layer design consists of a light diffusing loop faced surface, a foam core, and a reinforced nylon backing. The unique diffusion surface helps scatter light, making it much easier to light evenly. The foam core gives our chroma key fabric a unique stretchiness and resilience to wrinkles, allowing you to stretch it inside frames or wrap around objects. The nylon backing gives the backdrops an unmatchable strength and durability. Most chroma key fabrics need to be finished on the edges to prevent unraveling. Because of our three layer laminate design, foam-backed chroma key fabric is extremely strong and will not fray or unravel on the edges.