REFLECTOR: priming "how to"?

[Al Gietzen]

Can anybody help me suggesting some place where this process of priming, as
we need it for Velocity, is explained?  Is it necessary to protect the work
underneath, or it is being used just for aesthetical reasons during the
building process?  Does it add any unnecessary weight? 

 

Thank you,

Grigore

Grigorie;

 

Just adding a bit to what Ron has said; we use a primer coat for a number of
reasons. It does provide protection of the surface by sealing, and contains
a UV blocker; it acts as a 'filler' to help smooth the surface; and provides
for good adherence of the top coat final finish.  The parts come from
Velocity (at least mine did) with a coat of the US Paint 545 Awl-grip that
Ron mentioned, so it made sense to use that again.  There are other expoxy
primers that you can use.  

 

These primers are 'sandable', and you will need to sand to about a 400 grit
finish before putting on a top coat.  However; it is good to leave unsanded
until you are ready for final paint because once you sand off the gloss
surface it is more likely to absorb contaminants (like oil and finger
prints) that are diffictult to clean up.  You are likely to find that for a
first coat over fiberglass you may want to first use a 'high build' primer
to fill pinholes and surface imperfections.  You can use either a good
urethane or expoxy primer for this coat. Most of this will get sanded off
before applying the final coat of expoxy primer.

 

Follow mixing, thinning and application instructions from the manufacturer
of the primer or finish coats that you use.

 

Good luck,

 

Al

 

 

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