will epoxy resin stick to pvc pipe? looking to 5200 and then glass in a scupper tube...
epoxy and pvc?
- Thread starter whennotsailing
- Start date
stanton
High on jetskis.
- Location
- atascadero,ca
id say no, the 5200 should hold if prepped well and you use enough and let it FULLY cure before testing it.
"should hold...'' that is not very reassuring, I know 5200 is tough stuff, but getting anything to stick to pvc is always a challenge. I don't want leaks around my scupper tube.
Mark44
Katie's Boss
- Location
- 100% one place
Yes just take some 100 grit to it and rough it up and you are good to go. Works better than 5200 IMO. I have taken both apart, 5200 falls off over time and epoxy holds.
Mark44
Mark44
i was thinking a nice bead of 5200 around the pipe inside and out, then glassing it from the inside of the transom and bulkhead.
- Location
- Melbourne, FL
I have heard, but not confirmed, that you should flame the pvc before you hit it with sandpaper. It is supposed to burn off any contaminants or anything from manufacturing that might not help the bonding. A couple seconds with a butane torch should do it. I did it and never had issues. I have not tried without.
Mark44
Katie's Boss
- Location
- 100% one place
No need for glass just epoxy with filler and you are good to go. Mix it so its about like peanut butter consistency.
Mark44
Mark44
Mark44
Katie's Boss
- Location
- 100% one place
Idok
F1pro
- Location
- Nations oldest muthaF+++kin city
dont you think the sandpaper will take off those same contaminants?
seems that'd be like grinding off gelcoat then cleaning with acetone.....its unnecessary
seems that'd be like grinding off gelcoat then cleaning with acetone.....its unnecessary
WILKEY
SO FAR CHANGE SUCKS!!!!!!
exactly what i did and it worked great
- Location
- Melbourne, FL
for the most part, yes it will. however, it also allows some to grind it's way into the pipe. I'd say that for what we're doing it won't matter either way. If you have a torch handy while doing it, then no big deal. It's kinda like doing a solvent wipe on a surface before you sand and prep for paint, but probably less important.
SJBrit
Extraordinary Alien
- Location
- Bradenton, FL
You are correct - it needs to be flame annealed and roughened up. Don't scorch the PVC - you don't need much heat (an orange flame will do). Apparently it changes the surface chemistry so that the epoxy bonds better. All I know is that's what I did on my one way valve a few years back and it took quite a heave to break the bond when I pulled it all apart last week.
- Location
- Melbourne, FL
ancake:
Liquid Graffix
liquidgraffix
- Location
- In the shop or on the water
Marine-tex works perfect.
- Location
- CT
Sem 39747
best stuff you will ever use. I used it on a trim cable tube last year and it held the force the whole season and is still strong.
best stuff you will ever use. I used it on a trim cable tube last year and it held the force the whole season and is still strong.
where'd you get it?
- Location
- CT
Any auto paint shop.