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Old 07-19-2013, 10:09 AM   #447 (permalink)
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I meant to also say that I will be making two samples of each fabric - one with the smooth stock surface, and one with a roughened surface (using a wire brush or similar) to increase the surface area the glue can bond with. (As suggested by someone here on EM.)

I also am hoping to find someone with a strain gauge tool that can measure the strength of these samples. Or I may just measure the deflection under load. It would be nice to find the load it takes for failure, and see *how* it fails, though.

So far, the Titebond III in it's "stock" thickness has been better behaved than I was expecting. I apply it to the foam, then brush it one evenly, then lay the fabric, roll it with the small diameter ridged roller I got from US Composites - the glue just oozes through the fabric, and apply a bit less glue to the fabric, then brush it out evenly. If I' need to do two layers, then I would skip the top surface gluing until after the second layer.

I am not planning on vacuum bagging, and it looks like I'll be fine; so far anyway.
Sincerely, Neil
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