UV absorbance in clear epoxy
UV absorbance in clear epoxy
(OP)
Hi, I'm poting some UV LEDs in clear epoxy in which will be submerged in seawater. The UV LEDs will shine through the clear surface of the epoxy to prevent bacteria growth on the epoxy surface.
I would like to know the rate at which UV light is absorbed in the epoxy before it exits the epoxy. Resource suggestions would be greatly appreciated.
I would like to know the rate at which UV light is absorbed in the epoxy before it exits the epoxy. Resource suggestions would be greatly appreciated.





RE: UV absorbance in clear epoxy
ht
TTFN
RE: UV absorbance in clear epoxy
In the case of many epoxies existing, would you recommend a commercially available epoxy in which I could probably buy at a marine or hardware store in which doesn't attenuate UV light to a high extend and can uphold to UV radiation fairly well?
RE: UV absorbance in clear epoxy
htt
There are a large number of UV resistant epoxies, suggesting that UV degradation is a real issue:
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You could certainly try some of these other epoxies, as they're probably cheaper than an optical epoxy.
TTFN
RE: UV absorbance in clear epoxy
http://www.masterbond.com/wbarticles/wbuv.html
RE: UV absorbance in clear epoxy
RE: UV absorbance in clear epoxy
htt
RE: UV absorbance in clear epoxy
Windell
RE: UV absorbance in clear epoxy
You might also look at Epotek. I don't have a specific product in mind, but I have had good luck with their products in the past, and I am sure one of their tech people can suggest something.
http://www.epotek.com/
One other thought would be to figure out what type of polymer the company that makes your LED's uses to make the LED lens, as they by necessity would need to be UF resistant to the wavelengths of concern. It may not be an epoxy, but it might give you an idea of things that are likely to work. Just a thought.
Good luck.
RE: UV absorbance in clear epoxy
RE: UV absorbance in clear epoxy