Undercoatings, insulators, etc...

[lord_verminaard at yahoo.com (Brendan Doyle)]

This message got bounced back, we were talking about foam insulators and got on the topic of undercoatings, thought I would share.
<snip>

At the shop we just started re-coating the underside of the 'Benz.  We
 are using a stone chip-guard product that is a knock-off of some 3M
 stuff, we got it at NAPA.  It's advertised to also deaden sound.  It was
 about $15 for a bottle, we have used 2 bottles on the rear of the car so
 far, which got us 2 good coats in the rear fenders and 2 thinner coats
 on the rest.  We still have to replace some frame sections in the
 middle but we suspect about 4 more bottles for the rest of the car.  It is
 applied with a gun that screws to the top of the bottles and needs
 50-70 psi for proper application.  It goes on nice and thick and has that
 perfect OEM "orange peel" look.  It's supposed to be paintable as well
 but we are leaving it as is.  I can get the name of it tonight for you
 if you want.  The paint guy at NAPA said it should last 15 years at
 least.  We are just glad to be done scraping and grinding off old
 undercoat.  That especially sucks when you have to do it from the height of jackstands.

Brendan

P.S.  I since then have gotten the name of it, it's made by U-Pol (http://www.u-pol.com/countries/us/navigate.htm) and it's called "HS Gravitex Plus".  Now that it's cured a few days, it's really tough.  It dries hard, but pliable- IE if you press really hard with your fingernail it will make a dent but trying to scratch or scrape it off is nearly impossible.




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