# Epoxy Sanding Question/Advice

**URL:** <https://forum.clcboats.com/t/epoxy-sanding-question-advice/45547>\
**Category:** Builder's Forum\
**Created:** [July 23, 2017, 5:23pm UTC](https://forum.clcboats.com/t/epoxy-sanding-question-advice/45547 "2017-07-23T17:23:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Paul\_Simpson](https://avatars.discourse-cdn.com/v4/letter/p/f04885/32.png) [@Paul\_Simpson](https://forum.clcboats.com/u/Paul_Simpson)\
**Post date:** [July 23, 2017, 5:23pm UTC](https://forum.clcboats.com/t/epoxy-sanding-question-advice/45547/1 "2017-07-23T17:23:39Z")

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After a long delay in working on my WD 10, I have a question about sanding epoxy. When I glassed the hull (a couple of years ago), I had put on a coat of epoxy prior to glassing. I can't remember if I sanded the sealer coat prior to glassing, or if I just put the glass over the unsanded sealer coat.&nbsp;

Do I need to sand the sealer coat before glassing? Thanks in advance.

Paul

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**Author:** ![Ron\_Winston](https://avatars.discourse-cdn.com/v4/letter/r/8e8cbc/32.png) [@Ron\_Winston](https://forum.clcboats.com/u/Ron_Winston)\
**Post date:** [July 25, 2017, 9:03pm UTC](https://forum.clcboats.com/t/epoxy-sanding-question-advice/45547/2 "2017-07-25T21:03:41Z")

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&nbsp; Since it has been a couple years, I would do a light scuff sanding, before fiberglassing. &nbsp;If using MAS epoxy , they state anything over 12 hours to do a light scuff sanding. I usually will go 24 hours before doing a scuff sanding &nbsp;and have not noticed any issues. I use 120 grit to scuff up.&nbsp;