# More coats of epoxy needed?

**URL:** https://forum.clcboats.com/t/more-coats-of-epoxy-needed/47359
**Category:** Builder's Forum
**Created:** [January 11, 2020, 5:50pm UTC](https://forum.clcboats.com/t/more-coats-of-epoxy-needed/47359 "2020-01-11T17:50:30Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Bruce\_Robertson](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.clcboats.com/bruce_robertson/32/2072_2.png) [@Bruce\_Robertson](https://forum.clcboats.com/u/Bruce_Robertson)
#### Post date: [January 11, 2020, 5:50pm UTC](https://forum.clcboats.com/t/more-coats-of-epoxy-needed/47359/1 "2020-01-11T17:50:30Z")

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This is a Shearwater Sport Hybrid, on the hull. &nbsp;I haven't gotten to the deck yet.

I have three layers of epoxy on the hull. &nbsp;Some of the fiberglass weave is still visible on the reinforcing tape on the keel and chines, but seems mostly filled. &nbsp;It's certainly filled everywhere else. &nbsp;When I sand with 120 grit, many low spots show up. &nbsp;If I sand enough that those low spots start to disappear, you can clearly see weave - not just where the reinforcing tape is on the keel and chines, but everywhere in places.

Am I right in surmising that I need more layers of epoxy? &nbsp;I don't want to make the boat too heavy. &nbsp;Or is that not a problem, given that by the time the low spots disappear without revealing any weave, I'll have sanded any excess epoxy away?

Thanks for any hints! &nbsp;I'll post pics if that's helpful.

Bruce

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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: [January 11, 2020, 6:59pm UTC](https://forum.clcboats.com/t/more-coats-of-epoxy-needed/47359/2 "2020-01-11T18:59:52Z")

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Bruce,

In case you haven't seen this before

[Filling the Weave](https://www.clcboats.com/shoptips/epoxy_and_fiberglass/fiberglass_weave_epoxy.html)

If you've got holes and sand them out, you may be sanding into the glass. It's safer to apply a thin coat of epoxy, only where there are low spots and holes, not over the whole boat, and then sand.

If you wipe the sanded area with a cloth soaked in denatured alcohol and the weave disappears, you aren't into the glass yet. If the weave doesn't disappear, you're in the glass and need to immediately apply a coat of epoxy to seal the glass. In that case, the weave will never be invisible and it's time to consider paint.

Good luck,

Laszlo

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![](https://www.clcboats.com/images/photos/shoptips/fiberglassweave/wovenfiberglass5.jpg)&nbsp;