Hi all,There appears to be a thick rubbery layer sprayed onto the inner side of the fenders.  Is there a product that can immitate the same or I just have to spray it 200 times with the one that is available to me.  It is about 1/8th of an inch thick and it seems that it was sprayed on at once.Anyone?Zoltan

I think the Auto industry uses poly-urea compounds now to make the flexible bumpers, fenders, etc, found on a lot of cars. The stuff can be molded into whatever is required. It is the "2nd generation" of molding materials for the industry, as I understand it.

The latest wrinkle is that the material is a replacement for the poly-urethane bed liners that are produce under names like Line-X, Rhino Liner, and the like. Poly-urea is a tough  material that has been around for 60 years, but it use was limited because the technology was not there to use it. Now with new equipment the material can be used in many applications, from automotive to construction to food handling equipment. It is sprayed as bedliners in trucks, wall coatings in freezer lockers and food handling areas, roofing membranes on large building, building foundation seals.

Poly-urea can be sprayed in moist or wet areas. It can actually be sprayed directly on water. If you did that with poly-urethane, it would swell like foam insulation. Ploy-urethane is very reactive with water when first applied. Poly-urea is not reactive at all.

I have seen a 2"X4" fired like a missle at 150 MPH strike a poly-urea coated   2 inch layer of foam insulation, and not penetrate the material. Tough stuff.

It has good resistance to sand,gravel, and rock damage. So much so, that if my local supplier , Defender Coatings, can get an aliphatic to add to it I am going to have the front end of my 88 GL sprayed as well as the lower panels on each side of the van. Gravel is causing a good bit of damage to the paint. This suff is so tough, it will stop the problem. The aliphatic is neccessary to prevent fade and dulling due to ultra violet exposure. It will take the place of a "Bra" on the front end.

Don't know if all this is relevant to your question, but there it is.

John Rodgers
88 GL Driver