best adhesive and seal for pvc scuppers?

[RKrough]

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]

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]

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]

Flex bond 5000 works good.

 

[Stinkpot]

How 'bout 3M 5200?

 

[JimRP31]

Try plexus. They have several product with good adhesion between PVC and glass Plexus - Structural Adhesives
I just did my spray rails this spring.