Sanding epoxy with pigment in the lam

General Discussion
1

Hey all,

I have just lam’d a great looking 9’6 board with epoxy, and put blue opaque pigment in the resin for the lam. I noticed that when i sanded the laps after lamming the bottom layer, some spots on the glass went from dark blue to somewhat blue grey looking. I expected as much to happen. No problem though, since I had to put the deck layer on, using my blue resin. Now I’m ready for the hotcoat. But my question is this, do i use pigment in the hot coat to cover up any of the greyish spots that result from sanding, or will a clear hotcoat cause these spots not to show up? I guess, does the greyish spots result from actually sanding away the blue pigment, or is it just a moisture issue, which is solved by adding a clear coat of resin?

Thanks for the help!

2

It maybe that you just dulled the color by sanding

try wetting with DNA to see if the colors still there

I would try matching the color and touching up befor sand coat if need be

use clear sand coat or it will look worse if you apply color sand coat and sand you will definetly get an uneaven color

or leave it and learn

3

If you wipe the area with a rag soaked in denatured alcohol it will give you a pretty good idea of how the color will look post hot coat. You can use the info to decide how to proceed. Cheers

4

Pigment in the hotcoat gives it a pretty cool effect, especially if you do a different shade or tint. But if you’re after the traditional look, just do clear.

When I want to see what the sanded lam will look like when hotcoated, I just spit on in. Getto style.

5
Quote:

I just spit on in. Getto style.

that’s a sure fire way to get fish eyes …