# Epoxy Blemish

**URL:** <https://forum.clcboats.com/t/epoxy-blemish/38869>\
**Category:** Builder's Forum\
**Created:** [August 21, 2011, 1:38pm UTC](https://forum.clcboats.com/t/epoxy-blemish/38869 "2011-08-21T13:38:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kevin\_Close](https://avatars.discourse-cdn.com/v4/letter/k/c77e96/32.png) [@Kevin\_Close](https://forum.clcboats.com/u/Kevin_Close)\
**Post date:** [August 21, 2011, 1:38pm UTC](https://forum.clcboats.com/t/epoxy-blemish/38869/1 "2011-08-21T13:38:39Z")

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I glassed and put on the wet out coat on my Auk.

The next day I put on the first fill coat. I didn't wipe it down or sand at all before putting the fill coat on. I put the fill coat on with a foam roller, but didn't tip it off with a foam brush. I sanded that down, and it appeared as if it smoothed nicely.

I vacumed the surface, lightly went over it with a tack cloth, and then wiped it down with a clean wet cloth. About 30 hours later I applied the second fill coat as I did before, but, this time I tipped it off with a foam roller. It looks like I could sand it, and all minor spots would easly be removed, but there a few spots, the biggist is slightly larger than a pencil eraser, that look like something kept the epoxy from flowing into it.

After it cures, can I tape off those areas, sand them, and then&nbsp;spot treat them with more epoxy? If I can do that, it looks like I can go right up through 180 or 200 grit without touching or seeing the weave.

I don't want to strive for mediocrity, but, I may not be that good at it yet.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Thank You!!

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**Author:** ![Laszlo\_Morocz](https://avatars.discourse-cdn.com/v4/letter/l/c68b51/32.png) [@Laszlo\_Morocz](https://forum.clcboats.com/u/Laszlo_Morocz)\
**Post date:** [August 21, 2011, 1:42pm UTC](https://forum.clcboats.com/t/epoxy-blemish/38869/2 "2011-08-21T13:42:49Z")

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They're call fish eyes and it's the tack cloth causing it. It contains silicone which contaminated the epoxy surface and kept the new epoxy from sticking. Never ever use a tack cloth with epoxy.

Sand & wash it clean and reapply new epoxy, but this time use a clean cotton cloth wet with denatured alcohol to clean off the dust.

Good luck,

Laszlo

&nbsp;

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**Author:** ![Kevin\_Close](https://avatars.discourse-cdn.com/v4/letter/k/c77e96/32.png) [@Kevin\_Close](https://forum.clcboats.com/u/Kevin_Close)\
**Post date:** [August 22, 2011, 5:03am UTC](https://forum.clcboats.com/t/epoxy-blemish/38869/3 "2011-08-22T05:03:25Z")

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I wondered when I used it, but they have been around forever, so I thought it was safe.

Do you think, that when I can sand, if it looks loke I went deep enough and still have epoxy coverage over the cloth, that I can avoid another fill coat?

TKS