Plastic Shield over LEDs ??

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EyeDontKnow
Posts: 17
Joined: Wed Apr 08, 2015 11:37 pm
Location: Los Angeles

Plastic Shield over LEDs ??

Post by EyeDontKnow »

I have made some flat LED lights, in a grid pattern and mounted to a heatsink.....about 4x8 inches size.
I use these like mini-panel lights.

I want to put a screw-mounted plastic shield over the (5700K) LED's, to protect them, and to give me a surface to place my choice of temporary vellum-type paper diffusing (Rosco 3000, example).
I will leave a 0.5 inch space, as to not suffocate the LED's, and also allow for proper diffusion.

My question is......
......What type of plastic is the best, to prevent color-change, and durability ?
Lexan ?
Cast acrylic ?
Plexiglass ?
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steveminchington
Posts: 215
Joined: Sun Jul 22, 2012 2:30 pm
Location: Bedford UK

Post by steveminchington »

The best material for durability is polycarbonate. You can get it with a UV filter on one side so it doesn't degrade under UV light or change colour. 3mm thick would probably do you. Acrylic does tend to degrade over time with UV light.
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EyeDontKnow
Posts: 17
Joined: Wed Apr 08, 2015 11:37 pm
Location: Los Angeles

Post by EyeDontKnow »

steveminchington wrote:The best material for durability is polycarbonate. ....
I believe that would be Lexan, or similar. I have that.
Thanks.
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