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      The future of the JD Forum   07/31/18

      Thank you all for your participation on the JD Forums.  We have enjoyed answering your questions, providing project advice and technical assistance on this forum for a number of years. We believe that there are now better ways to provide this service for our customers and the community. With that in mind, we have made the difficult decision to discontinue the Jamestown Distributors Forum.   Our JD Tech Team is committed to being your trusted technical resource, and we encourage you to reach out via email, phone, social, product reviews, and to post questions using the Q & A 'Ask A Question' function on all product pages. Additional information can also be found on product page Technical Data Sheets (including detailed usage instructions and application data).   Thank You Jamestown Distributors 
DuffyM_in-NH

Fixing surface cracks on old kevlar canoe

2 posts in this topic

I've got an old (unknown age) kevlar canoe which has small surface cracks on the outer hull bottom and bilge area. I'm assuming the cracks are from the hull flexing as there are no cracks on the sides. I do not know if the surface is a colored epoxy, gel-coat or paint. The cracks are tight with no separation from the hull.

How do I determine what the surface is? Then what can I do to fix the problem?

Mike

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You can generally tell if it is gel coat by sanding or grinding and if it smells like styrene it's usually gel coat.  If no smell and very thin it's usually paint.  In any case to fix the crack you will want to v it out with a dremel and use a filler to fill it in like 3M Marine Premium Filler if the crack is cosmetic.  If it's structural into the fiberglass or Kevlar cloth, you will need to build that up by grinding the area about 3" around the crack and laying up more Kevlar cloth and resin.  Fair smooth and finish with gelcoat.  If using gelcoat do your lay up with polyester resin.  If finishing with paint, you can use epoxy resin.

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