[V.waffe 3]

The foam used in this process is much different than that normal expanding foam junk used for sealing up holes. I have had some run ins with that crud too and know exactly what you mean. The stuff that I'm speaking of is two components in one seperated tube that catalysed in the mixing tube, unlike the spray can stuff. There are many different expanding foam compounds out there and each of them have a dfferent job. The one I have heard about is made for stiffening, not sealing. The article about a drag Nissan 300ZX was in a Sport Compact Car magazine from 1998 or 1999 I am thinking. Again, I have not had the chance to fully discuss this product with the 3M rep. I would advise sending a email to them before purchase as the foam and gun to press it can be expensive to purchase out right.

Most body shops use this or systems like it for everything for various foams to body panel adhesives. The panel adhesives are another point of interest for restorers of old vehicles,too. I like them for non-structural body patch jobs due to the fact no to minimal welding is required. No welding means, no warping of panels, no moisture caught in the weld which leads to rust out the weld and panel, and not as much skill or expensive equipment needed to do repairs. I have seen entire roof skins put on with this stuff with only a couple of spot welds to hold everything in place. Most companies offer a line of these products including, but no limited to ; 3M, PPG, Duramix, and I think BASF.

I have the most expierence using the Duramix line. It was cheaper than the 3M stuff and so was its gun. The only problem was that you need to make sure that the product has not reached its expiration date. If you guys need anymore information let me know and I'll try and find it. I would suggest checking out that link that homeboy (DORIGGT) found, too.
Later,
V3