I’m told on the flex PER resin, you just use 7 to 10% and add it to the lamination resin. You can get flex resin with wax for the last coat to get a non sticky surface.
We are laying up more Pinto body kits and we are going to try it out for the first time.
You can get flex resin from www.revchem.com and tell them “JM” from GGROP referred you as they support our Plastics job training program.
I will be curious to see how this stuff works out. I wonder if it could reduce or eliminate the need for kevlar layers in fenders and airdams.
I just laid up some Nascar Pinto (oxymoron?)doors yesterday at the classroom (yes, it was Sunday, sometimes the best time for me to work and not be answer a million questions over what I just lectured about and asked for any questions…) and I’ll pop them out tomorrow and flex test them.
I may have added a little over the 10% but we do a lot of leaning / rubbing on each other while racing!
Can you post some pic’s of the flex in action if you could? By the way thanx for the PM 
We did a test panel with 100% flex resin with wax and it is really rubbery…even with 20+ oz tooling cloth in both single and dbl. layer.
I don’t think a photo will help show it. Maybe I can lay up a large flat panel and cut into small samples to mail them out? :roll: To USA people…OK, maybe the Canadians too… 
The next question become wondering how areodynamically stable panels will be. I suspect our top speeds (SCCA GT1 and FP) are a little higher than short ovals, and preventing deflection would be a priority.
But we also do some rubbin’, and anything we can do to prevent holes and cracks would be great.
The next question become wondering how areodynamically stable panels will be. I suspect our top speeds (SCCA GT1 and FP) are a little higher than short ovals, and preventing deflection would be a priority.
But we also do some rubbin’, and anything we can do to prevent holes and cracks would be great.
I would be interested in seeing a sample of that.
Doug
But I have a pit crew member that is an aero specialist (boy, did I luck out finding him…) which does wind tunnel testing for the company he works for and so we get into swapping ideas.
We also use a paper core material and seal it off with 4oz surfboard cloth and it stiffen ups the light and thin F/G (the track knows I teach this stuff and has banned carbon fiber and Kevlar… :roll: ) body panels. But if it is painted on both sides…
OK, a bit more information on this. I spoke with RevChem today to find out more information on this. Based on the discussion thread, I was thinking this was an additive like a Duratec or something, but this is wrong. It is actually an Interplastics flex laminating resin that you can mix in varying proportions with your standard laminating resin to get your desired flex. The product number that was referred to me was the S465. I am going to get some and try it on a front spoiler. I will post my results.
I just ordered some as well. Hope it works for my application
If either of you 2 gentlemen has contact info, i would be interested in calling for a sample also.
Dougie or anyone else: www.revchem.com or 1 (909) 877-8477
Just tell them “JM” from Garden Grove ROP told you about them… 