Date: Fri, 21 Sep 2001 19:13:15 -0500
Reply-To: John Rodgers <jhrodgers@CHARTER.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: John Rodgers <jhrodgers@CHARTER.NET>
Subject: Re: Thick rubbery layer
Content-Type: multipart/alternative;
Zoltan wrote:
> 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
Zoltan,
I guess I missed something. What fenders? On what? Where?
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
[text/html]