----- Original Message -----
From: "Fred Fillinger" <n3eu@comcast.net>
Subject: Re: Europa-List: Re:Paint opinion
|
| > I already have
| > applied Smooth-prime to most of my surfaces and plan to sand it with
| about
| > 180 gt then let the body shop use the recommended primer for the
| paint
| > used.
|
| Just an observation here if weight is a concern. A least one famous
| auto paint mfr says a waterborne 2-part primer (Smooth-prime is in
| that category) is OK under their topcoat products. Solvent automotive
| primers adhere in one of two ways, and the above will have to be tooth
| adhesion. Or the primer can be a solvent-type to which the top coat
| will also chemically adhere. There may no way to really know that any
| topcoat over Smooth Prime will tooth adhere any differently that to an
| intermediate solvent primer.
|
| An auto body shop may have no experience with cured primers -- I do re
| airplanes -- which are chemically dead for solvent topcoat adhesion,
| and they may prefer to prime with such-and-such because that's what
| the can of topcoat says, or play it safe using judgment I understand.
| The question I think is more appropriate for tech people at the paint
| mfr, if such is available and desired, especially for self-shooters
| not talking to a body shop needing no technical instructions from
| customers. :-)
|
| Reg,
| Fred F.
|
Cheers, Frederick,
I appreciate your advice in this topic, but am having trouble
with sentence structure..... may I infer that the two methods of adhesion in
the products under consideration are (a) Tooth adhesion and (b) Chemical
adhesion?
I plan on leaving the spray work to a professional (commercial)
painter as I've seen my work........ How is an ignoramus to know which is
which? Is there a codeword which differentiates one from the other? The
advice I got (which seemed repeatable from several gurus) was that one
should leave the choice of topcoat to the fellow doing it - and in that case
I naturally want to smooth the surface with a compatible filler/undercoat.
Which (tooth/chemical) form of adhesion is best if they are not
both present, and how do I voice my question to the provider?
Bets,
Ferg A064
PS I took a sample stab to the spraymaster and he laughed me all the way
back to the parking lot, so I guess there's no hurry answering.............
|