Re: Lexus Paint Chipping

Water-based paints are the rule in the U.S. (thank you EPA; that little rule

> change is the reason for so many late '80's/early '90 US cars having paint > adhesion problems, by the way), but I don't know that to be true in Europe, > Japan, or Korea. > > Anyway, automotive paints were NEVER lead-based in your lifetime nor mine > (maybe never). What they were was volatile (organic) solvent (VOC) -based > and that's what the EPA put an end to in the late '80's. That caused big > problems for a while since the rules were changed before the technology was > there for water-based paints. (Thank you, EPA. I had an '87 F150 that had > paint problems for exactly this reason.) > > Also, a "hard" paint or coating is much more likely to be brittle and chip > than a "soft" coating. The soft coating will deform in an impact and absorb > the energy of impact while a hard coating can't deform and is more likely to > crack and chip to dissipate the energy. I think the biggest factor, though, > is the strength of adhesion to the primer layer under the top-coat. Combine > a hard surface coat and weak adhesion to the primer and you have a formula > for chip damage on impact. > > -- > > - GRL > > "It's good to want things." > > Steve Barr (philosopher, poet, humorist, chemist, > Visual Basic programmer) > > I noticed the same thing on my 2001 Mercedes E-430. I asked the service > > manager about it and he said that all automotive paints are now > > water-based and are much softer than the lead-based paints they used to > > use...therefore they are more prone to chipping. I am not an expert on > > automotive paints, so don't know if this is true or not, but it was a > > plausisble explanation. > > > > dulles wrote: > > > > > I've noticed a lot of paint chipping from rock strikes on my two Lexi. > A > > > buddy of mine does detailing on the side and said he has noticed more > than > > > the usual paint chipping on LEXUS cars. He does a lot of cars other > than > > > LEXUS. Anyone else notice more than usual paint chipping? > > > > > > -d > > > > > > > > > >
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MRS
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