# Epoxy and fiberglas on varnish?

**URL:** <https://forum.clcboats.com/t/epoxy-and-fiberglas-on-varnish/40836>\
**Category:** Builder's Forum\
**Created:** [April 15, 2013, 1:44am UTC](https://forum.clcboats.com/t/epoxy-and-fiberglas-on-varnish/40836 "2013-04-15T01:44:30Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Johan\_Van\_Zwienen](https://avatars.discourse-cdn.com/v4/letter/j/a4c791/32.png) [@Johan\_Van\_Zwienen](https://forum.clcboats.com/u/Johan_Van_Zwienen)\
**Post date:** [April 15, 2013, 1:44am UTC](https://forum.clcboats.com/t/epoxy-and-fiberglas-on-varnish/40836/1 "2013-04-15T01:44:30Z")

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I want to put an extra reinforcement on the keel of my kayak of fiberglass and epoxy.

is it nessesary to take off the varnish coat first or can I just sand and aply on top of the varnish?

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**Author:** ![Bob\_Simmons](https://avatars.discourse-cdn.com/v4/letter/b/bbe5ce/32.png) [@Bob\_Simmons](https://forum.clcboats.com/u/Bob_Simmons)\
**Post date:** [April 15, 2013, 2:09am UTC](https://forum.clcboats.com/t/epoxy-and-fiberglas-on-varnish/40836/2 "2013-04-15T02:09:37Z")

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&nbsp; Yep, there's some sanding in your future. As a general rule two part systems go on before one part systems. If you don't mind my asking why are you needing reinforcement?

&nbsp; Bob.

&nbsp;

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**Author:** ![Johan\_Van\_Zwienen](https://avatars.discourse-cdn.com/v4/letter/j/a4c791/32.png) [@Johan\_Van\_Zwienen](https://forum.clcboats.com/u/Johan_Van_Zwienen)\
**Post date:** [April 15, 2013, 2:35pm UTC](https://forum.clcboats.com/t/epoxy-and-fiberglas-on-varnish/40836/3 "2013-04-15T14:35:19Z")

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Hi Bob, thanks for the reply, the sandy beaches here at the costa brava seem to like varnish , I noticed the 5 layer coat I put on is already gone on some parts of the keel. ( 8 times going out)

I was thinking of putting on a carbon fiber strip with an epoxy carbon powder mix.

maybe I will just have to use a better varnish, two component?&nbsp;

&nbsp;

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**Author:** ![Wesley\_Ewell](https://avatars.discourse-cdn.com/v4/letter/w/8797f3/32.png) [@Wesley\_Ewell](https://forum.clcboats.com/u/Wesley_Ewell)\
**Post date:** [April 15, 2013, 4:41pm UTC](https://forum.clcboats.com/t/epoxy-and-fiberglas-on-varnish/40836/4 "2013-04-15T16:41:02Z")

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CLC sells a handy kit for this. I scraped my Merganser down to the glass on a concrete ramp. I applied the CLC kit and have seen no damage after three years of hard use. Photos and description at [http://twofootartist.com/merganser-construction-notes/](http://twofootartist.com/merganser-construction-notes/)&nbsp;Scroll to July 2010 entries. -Wes