Dry glass treatment

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Dry glass treatment

Post by TonyB » Thu Nov 07, 2013 9:55 pm

I just cut a kneeling thwart and toe bar out of an older Hahn and am wondering if I should treat exposed glass with anything before glueing foam over it.

And what is the best aheisive to secure the foam in?
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Re: Dry glass treatment

Post by Sir Adam » Thu Nov 07, 2013 10:12 pm

It all depends on what you are doing…

If you are glassing it in, use that to your advantage (wetting out those bits and laying new glass over them. Be sure to sand lightly for the best bond. I would use epoxy as it will bond to both vinyl and poly ester resins)

If you are not, sand off every bit of it you can - otherwise you will be cutting yourself on the glass fibers for years…. I you can't, do the best you can then wrap with tape. The point here is protection.

To hold foam down on glass red can DAP / Weldwood contact cement is the way to go. I'd use it on plastic too after a light sanding perhaps, but others may have better ideas (I do far more work on / with glass than plastic….).
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