best adhesive and seal for pvc scuppers?

RKrough

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I used Silka Flex poly to glue and seal the scuppers (2" pipe) in place but the Silkaflex isn't sticking as well to the PVC as I first thought. I punched them back out this morning (they broke loose way too easy)
What works for you guys?
 

F/V First Team

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did you abrade the pvc?
another trick is to give the surface you are adhering to a few passes with a propane torch flame then abrade it. same method you'd use if you were epoxying them
 

RKrough

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did you abrade the pvc?
another trick is to give the surface you are adhering to a few passes with a propane torch flame then abrade it. same method you'd use if you were epoxying them


I roughed it up pretty good with 60G and cleaned it carefully with acetone, The Sikaflex just didn't seem to get a good bond. I'm thinking the Sikaflex might be old.

I'll cut some more pipe and try abrading after a little heat and try it with epoxy this time
 

Blitzen

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Flex bond 5000 works good.
 
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