1974 Stringer Repair

Yes I got the same pumps andy had when I was at his house a few months ago. I have only used the auto store brand epoxy so far. Im going to break into the us composites epoxy sunday. thanks for the great advise.

8122pbrainard wrote: Cslaten33 wrote: I got the medium. Yes I got several pumps from us composite. I will go by weight I'm sure. Clark, How have you been getting the mix ratio? By measuring volume or pump strokes? The reason I asked if you did get the pumps is they really are the easy way to get the ratio. Assuming you got the correct ones, one full pump stroke of each gives you the proper ratio. No goofing around with a scale.

Pete,

It doesn't appear that US Composites sells the "metered" pumps like I got last year for the FLAG Resin. Their pumps are 1 pump equals one ounce. I've just been careful about what I'm doing and making sure I do 3 pumps of resin to one pump of hardener with the medium hardener set up. If Clark got the same pumps he'll need to do the same and/ or weigh it, right?

I got the medium. Yes I got several pumps from us composite. I will go by weight I'm sure.

I ordered epoxy resin. I keep saying MEKP because that is what the guys at the glass shop call it here in town. Sorry for the mix up.

Yes! Very good read! Pay close attn. to what Audiofn is saying.


AT

Polyester Resin vs. Epoxy its not just about the money

Here is a link to follow.

http://www.offshoreonly.com/forums/fiberglass-paint/161745-laying-stringers.html

A bit of post reading from Offshore Only .com pay special attention to any posts by the sites Grandmaster "Glassdave"

Cslaten33 wrote: 8122pbrainard: The resin I got from the local automotive store in the same type of resin I got from US Composites. Homework done. Although the mixtures are different on all three different brands. Thanks

Clark,
What are you mixing up over there? Doing some chemistry work? Did you purchase polyester or epoxy resin from US Composites?

Cslaten33 wrote: There were two different brands that I got from the automotive store. One of the brands had a really bad resin to MEKP mixture. It sever set up. The other two set up really fast.

MEKP is the catalyst for polyester!!!!

Cslaten33 wrote: Im not going to do the CPES. Yes Im going to seal them with a light vale before I set them in the boat. I did a lot of research and the light glass with vale will make a better bond with the wood "in the long run" compared to the CPES. Although I could do both and that would be the best thing to do. BUT I am on a budget so Im just doing the vale. No Im not spelling vale right but it's something like that.

What have you been reading and I have been meaning to ask you about this "vale"?

LMAO

8122pbrainard: The resin I got from the local automotive store in the same type of resin I got from US Composites. Homework done. Although the mixtures are different on all three different brands. Thanks

that sucks. At least you have the right stuff anyway.    Back to it, Spring is coming !!!

Cslaten33 wrote: Well guys dont use resin from the local automotive store. I wasted a gallon and about 3 hours waiting on junk resin to harded and it never did.

Was this just extra cause it was the weekend? Or was that the original plan?
Lotsa guys use the US Composites stuff. I, be it wasteful dollarwise or not, have stuck with West Systems through both of my projects. i get how it works and have had zero issues. I think I have only hotpotted myself twice in 2 years. Maybe three times.

Well guys dont use resin from the local automotive store. I wasted a gallon and about 3 hours waiting on junk resin to harded and it never did.

Yup, the clock is ticking. Are you coating your boards in CPES? Are you also planning to bed them in before you glass them?

Hey I actully got my primary stringers cut down to size yesterday. Everything makes a good fit. I need to cut the 1X6 stringers and start glassing everything in. I have forgot my camera the last three times I have worked on the boat. I have some pics. from my Iphone but the look like crap. It is hard on the eyes just to try to figure out what you looking like. Lets just say the pics are really bad. Well I hope this weekend I can get the stringers set on place then glass my ASS off for the next week and call it done. Pictures are coming when the rain goes away.

As did I. One of mine was half gone and just sludge in there due to it NEVER being sealed at the factory.
Actually, I am glad I ended up doing those and the rudder plate. It is not that much of a pain in the ass, and you will be glad you did it.   Grind it out, measure, peanut butter it in, glass it, and then get the correct hole saw. I just used exterior ply I had laying around, CPES and epoxy.