Hey all,

I've been hearing about this stuff for a while now. What it is is an ultra rigid, lightweight foam that forms when two liquids are mixed together. The idea is that the foam is expanded into a car's tubular chassis members and after it hardens, it adds considerable stiffness to the member.

SCC magazine used this procedure to stiffen up the chassis of their 300ZX and said it worked great. I have seen it used on a tuned Skyline GTR on Hot Version, and they raved about the solidity of the body.

My question is if anyone has any experience with this stuff? Being that the S2000 has an open top structure, I would imagine that there could be some nice benefits, without a lot of cost involved.

Did a quick Google search, and this is what I found:

http://www.itwfoamseal.com/auto_aftermarket.htm

What do people think?

 

I would hope one of the benefits isn't added weight.

 

Very minimal. Maybe 5-10 lbs in total, depending on the density of the foam you choose and the amount required.

 

Same stuff we ship our flight controls in...........Personally I think someone is really stretching on this application of it though.

 

don't use it?

 

Seems to be very simillar to the stuff my company uses to ship heavy/sensitive electronics. Also to the stuff you can buy at Home Depot to fill in cracks and whatnot. I'm not so sure it would add much more stiffness to the car...but it may make it float.

 

I'm pretty sure it will add significant stiffness on day one, I'm just wondering how fast it will break down and turn in to a crumbly mess

 

I wonder how much water will work its way into this product. I dunno, I'd feel like I was driving a nerf gun. No offense intended, for some reason it just popped into my mind. For the money why not buy a brace? Hmm. Who would want to test this product?

Not it.

 

I understand what u mean.. they are drilling holes on the side to insert those liquid in.. i saw that on the Hot version video where they do that to a GTR...

 

I have researched this alittle. I even have 8 cases of the stuff in my house for the GT-R... Only the lack of time (and the installation of a fully welded in rollcage) has precluded me from trying it out.

The stuff I have is automotive structural foam. It works according to some of the people I trust that have used it. Ask Steve Mitchell, who worked for Nissan's IMSA team a few years back. According to many others, the stuff is very durable. I don't know the effective stiffness that will result in, especially with a welded in rollcage, but suffice to say, it probably will help the chassis mounting points, something the rollcage does not address.

Is there a reason why we're asking about this stuff? Isn't the S2000 stiff enough?