Epoxy vs. Poly - how do know?

[ddo1968]

I'm planning to replace the floor in a 1976 Proline. It's a liner style boat. I plan to use epoxy based poducts for the rebuild but have read that epoxy won't stick to polyester or vice-versa. But how do you determine what type of product was used by the factory when the boat was originally built?

 

[Hooty]

Re: Epoxy vs. Poly - how do know?

Epoxy will stick to the break of day. Sand the surface you're going to apply it to first.<br /><br />c/6<br /><br />Hooty

 

[crab bait]

Re: Epoxy vs. Poly - how do know?

there's a 99.9 % chance your boat is poly.. an probably since your boat is a 1976 it's a 100 % chance it's poly... epoxy's good stuff..

 

[SCO]

Re: Epoxy vs. Poly - how do know?

It is my understanding that:<br /><br />Epoxy bonds better to old polyester than polyester.<br /><br />Epoxy bonds to epoxy and is waterproof and polyester will soak up water( the reason for gelcoat?). <br /><br />Epoxy is too expensive for consideration in most boat production, and most all boats are polyester and some few of vinyl ester. <br /><br />I've read this and found epoxy to be reliable for repairs to polyester though I have not attempted to make repairs with polyester.

 

[SCO]

Re: Epoxy vs. Poly - how do know?

check this link<br /> http://home.att.net/~DaveCarnell/

 

[epresutti]

Re: Epoxy vs. Poly - how do know?

Epoxy will stick to most anything, except certain plastics. They even manufacture epoxies formulated for sticking to concrete and metal. I have used it on my entire re-build and it sticks fine to other epoxy and poly.<br /><br />I have even managed to stick both my butt and my head to the hull (don't ask it's a long story).<br /><br />Cheers.<br /><br />emp.

 

[crab bait]

Re: Epoxy vs. Poly - how do know?

you musta fell asleep , ED.. it takes a while to set up...

 

[epresutti]

Re: Epoxy vs. Poly - how do know?

Crab Bait,<br /><br />Short story is I didn't realize I had spilled some on the deck from a previous batch, and was rolling a new pour on the underside of a compartment while laying on the deck, well the rest is history.<br /><br />Just got some hair and a pair of shorts! Good thing I was wearing *********!<br /><br />Cheers.<br /><br />emp.

 

[epresutti]

Re: Epoxy vs. Poly - how do know?

Look like the bad word filter took out the word that means something you wear beneath your pants.<br /><br />Under where?<br /><br />Cheers.<br /><br />emp.

 

[ddo1968]

Re: Epoxy vs. Poly - how do know?

Thanks everyone, for the comments and suggestions. Looks like it will be epoxy, if I can ever find the time and a place to tear into the boat.

 

[Hawkeye1]

Re: Epoxy vs. Poly - how do know?

ddo1968, if you don't have a good local source for epoxy check out these 2 links. I have used over 20 gallons of both there epoxies with great results. Price raanges from 25 to 35 $ a gallon for 6 gallon sets. I have also used about 12 gallons of west systems at twice the cost and see no difference in any of them. Good luck with your project. <br /><br /> http://www.raka.com <br /><br /> http://www.uscomposites.com