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another sealer/epoxy question

PostPosted: Fri Dec 18, 2009 8:25 pm
by SteveSS
I did a search on that online auction site for 'wood sealer' and found a RV & marine outfit/supplier (polymerproducts) that had a similar product to cpes. Or actually their version of a cpes. It's 1gal epoxy sealer, 1/2 gal curing agent.
Appears to be the same stuff everyone on here talks about, but considerably less cost.
Wondering if anyone has used their product on a teardrop.
Opinions.........?
SteveSS

PostPosted: Fri Dec 18, 2009 10:00 pm
by Miriam C.
Steve do you have a url to the website? Hard to compare without it.

CPES is clear penetrating epoxy sealer. If what you are looking at is a penetrating sealer it might be similar. :thumbsup:

PostPosted: Sat Dec 19, 2009 11:36 am
by SteveSS

PostPosted: Sat Dec 26, 2009 11:38 am
by Yekoms
I'm new here and didn't know what CPES was so I did a search on Dogpile.com and found this. Maybe it will help other newbies.
http://www.rotdoctor.com/products/cpes.html
Smokey

PostPosted: Sat Dec 26, 2009 2:18 pm
by Miriam C.
:thinking: Steve I tried to find this stuff with some more info. on it. The thing about Rot Dr. is that it penetrates. This might work just as well but not penetrate. Lots of folks use marine epoxy to cover their TD's. :thumbsup:

PostPosted: Sat Dec 26, 2009 4:15 pm
by gullywompr
Miriam C. wrote:The thing about Rot Dr. is that it penetrates. This might work just as well but not penetrate.


I am convinced that CPES is beneficial, but wondering if it is necessary. I had surmised that CPES was created for restoration work, on wood that had started to decompose and which had become friable to some degree. On new, structurally sound plywood, penetration of the plastic into the fibers seems like a good idea, but wouldn't just regular epoxy sufficiently encase the wood fibers, providing a barrier to water?

PostPosted: Sat Dec 26, 2009 5:15 pm
by Steve Smith
Hello. I'm Steve Smith. I'm the guy who invented Clear Penetrating Epoxy Sealer [also known as CPES], back in 1972. I've gathered up and organized quite a bit of information about it, since then.

I originally invented it as a solution to slightly deteriorated wood. It turned out it also was (I modestly assert) the World's Greatest Primer for paint or varnish on wood.

It is distributed by Smith & Co. under two names, CPES (above) and MultiWoodPrime. The MultiWoodPrime website http://www.multiwoodprime.com/ has information about its benefits on new or sound wood. There is information at the main company website http://www.smithandcompany.org/ about the product and its use in the restoration of wood. One of my distributors is The Rot Doctor, who serves the general public with Internet sales.

The underlying science of how it works is given at http://www.woodrestoration.com/. There you can see time-lapse photographs,pictures thru microscopes, mechanical tests and even an open standard for this kind of product.

The information at those websites should answer a lot of your questions. If it makes new ones, just ask.

Steve Smith

PostPosted: Sat Dec 26, 2009 8:09 pm
by rwelp
I have not made my teardrop yet, but I have made 2 boats, a kayak and a drift boat. I am very familiar with marine epoxy. After reading all of the info on the ebay site this appears to be just as good as the marine epoxy I have used in the past( System III and West Epoxies). If it does what it says it does it is well worth the price. The addition of acetone to any epoxy will give it more penetration due to the lower viscocity(thickness). The thinner any coating is the more it will penetrate. I may just have to give this a try myself. I am just waiting to get my trailer frame back from my brother in law. He is modifying it for me. I will be starting my build within 2 weeks.
Rob Welp

PostPosted: Mon Dec 28, 2009 6:22 pm
by Cliffmeister2000
One thing about CPES from my experience (which I believe to be a good thing). Once applied and dried, don't try to cut the wood with a wood saw. Use a metal saw. The plywood becomes much stronger once CPES is applied!