dj paul Posted September 4, 2005 Share Posted September 4, 2005 Hey i saw this on an episode of something, cant remember, but they strengthened the frame of a skyline by putting expandifoam in it. i think this would work. it dries really hard and is really light. and is cheap at your local hardware store! any experience, comments, ideas? thanks in advance! Paul Quote Link to comment Share on other sites More sharing options...
Tim240z Posted September 4, 2005 Share Posted September 4, 2005 the hardware store stuff is not structural foam and will not have any positive effects on the integrity of your chassis. Do some searching as this has been discussed before several times. Quote Link to comment Share on other sites More sharing options...
tube80z Posted September 4, 2005 Share Posted September 4, 2005 Hey i saw this on an episode of something, cant remember, but they strengthened the frame of a skyline by putting expandifoam in it. i think this would work. it dries really hard and is really light. and is cheap at your local hardware store! any experience, comments, ideas? thanks in advance! Paul Most of this is polyurethane structural foam. It comes in various densities and does really work. We had an old race car that was done this way. But and a big but, is that if you have any trapped rust you will cause yourself a world of problems. And you can more or less forget about trying to fix anything that you've foamed. It isn't to weld around and is highly toxic when it burns. Cary Quote Link to comment Share on other sites More sharing options...
dj paul Posted September 4, 2005 Author Share Posted September 4, 2005 so im guessing its not worth it? unless im turning this strictly into a race car? Quote Link to comment Share on other sites More sharing options...
Guest Z Draci Posted September 4, 2005 Share Posted September 4, 2005 In Japan I remember seeing foam specially designed for cars. They also had a non-flammable type as well. Japan has recently been in a chassis tuning trend so they have a whole bunch of new product lines dedicated to the unibody. Quote Link to comment Share on other sites More sharing options...
tube80z Posted September 5, 2005 Share Posted September 5, 2005 so im guessing its not worth it? unless im turning this strictly into a race car? And maybe not even then. This is really a mod I think aimed at someone who wants to increase stiffness, doesn't want a cage, and doesn't care if it make the car unrepairable. It's not going to make the car as stiff as a cage by any means either. We did it to make the car stiffer and hide this from our competition. When we found rust we were screwed. Or at least I couldn't figure out how to cut out and weld in new pieces. So if you decide to do this I'd research that very carefully and figure out of you think it is something you really want to do. I did the rockers, windshield frame, and the upper and lower front frame rails. And one more word of advice. Don't get it on you Cary Quote Link to comment Share on other sites More sharing options...
Cody 82 ZXT Posted September 5, 2005 Share Posted September 5, 2005 I've read about this a couple of times and it sounds exactley like what I want. Where would you buy it? Quote Link to comment Share on other sites More sharing options...
tube80z Posted September 5, 2005 Share Posted September 5, 2005 http://www.itwfoamseal.com/automotive.htm Quote Link to comment Share on other sites More sharing options...
johnc Posted September 5, 2005 Share Posted September 5, 2005 Its a cheater trick for showroom stock racers, although its questionable about how much it really helps an already stiff chassis. I would not use it on a car you plan to work on and keep for a while for the reasons mentioned above. It turns the area foamed into a single piece that must be removed as a unit and replaced if damaged. Quote Link to comment Share on other sites More sharing options...
dj paul Posted September 6, 2005 Author Share Posted September 6, 2005 thankyou everybody for your responses. i was gonna use it but im glad someone here has had experience with it. i do plan on keeping my car a long time and i do not want repairs to be a PITA. thanks again! Paul Quote Link to comment Share on other sites More sharing options...
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