Fiberglass on top of already cured epoxy

I am making a seat top out of okoume and solid wood for a small powerboat I built. It will be covered in fiberglass, which as you know becomes virtually transparent. 

However, some epoxy has saturated the okoume (and is cured) in some areas, and since I've never dealt wiith this situation before, I worry that the final result of 'glass over these spots will look different than what is on top of bare okoume. Ultimately it will be varnished.

Before I charge ahead, I thought I'd ask you more experienced builders if this will be noticeable or if there is something I should do first (beyond a light sanding) such as scraping or a heavy sanding to remove more epoxy.


3 replies:

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RE: Fiberglass on top of already cured epoxy

   It should disappear under the epoxy/glass. You can get a good idea by wiping some denatured alcohol on the seat and see what the cured epoxy looks like. A light sanding will probably help. 
 

George K

 

RE: Fiberglass on top of already cured epoxy

Thanks!

I gave it a try, but you can definitely see a difference.

I will try sanding it in progressive steps...and hope there will be something left!

RE: Fiberglass on top of already cured epoxy

   Sanding took care of it.

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