Hi all,
I need to stick two long lengths of 10mmx100mm general-purpose UPVC board back to back. This will be an exterior job and needs to last.
I have several surplus tubes of exterior frame sealant, which I think is probably acrylic. Another option might be silicone sealant. Yet another option might be expanding polyurethane foam.
Will the frame sealant be an adequate option? I want the bond to last around 30 years or so.
Many thanks, JD
Owain
Acrylic doesn't last long if it stays wet. PU doesn't either, it needs to dry out fully frequently, and between 2 plastic sheets it won't. Silicone's fully water tolerant, but lacks strength in shear.
We just had a thread on gluing pvc.
NT
This stuff welds PVC, I've only used it on small parts, but seems OK ...
It looks worth a punt. Thank you - and thanks to the other respondees. JD
n.b. It's cheaper elsewhere
Confusing advert, is that perhaps for four tubes? In which case the price looks OK.
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