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  Epoxy turning brown?

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Author Topic:   Epoxy turning brown?
rkong posted 09-30-2002 09:54 PM ET (US)   Profile for rkong   Send Email to rkong  
I'm patching some holes with epoxy and I noticed that while sanding them down a brownish stain forms. I think it was getting overheated with the sanding. Does anyone know for sure? Is the epoxy still ok? I'm planning on putting white gel coat on top of this, so will the gel coat hide the brown stain? Thanks.
kingfish posted 09-30-2002 09:58 PM ET (US)     Profile for kingfish  Send Email to kingfish     
Were you sanding by hand or with an electric or air sander?
rkong posted 09-30-2002 10:06 PM ET (US)     Profile for rkong  Send Email to rkong     
I was using both hand and electric. It could be the fiberglass turing brown... or whatever my console is made of.
jimh posted 09-30-2002 11:58 PM ET (US)     Profile for jimh  Send Email to jimh     
Epoxy resin as it cures will tend to shift color to a yellow tint. This is more pronounced after exposure to ultraviolet radiation (sunlight).
rkong posted 10-01-2002 07:29 PM ET (US)     Profile for rkong  Send Email to rkong     
Nevermind on this topic... I think I'm just seeing the wood underneath after the sanding.

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