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Tom,
A primer is just that. You don't need full coverage and a totally
green part to make it work properly. The primer is to make your paint
stick to the metal or other paint when you're using dissimilar paints.
The faintest coat will suffice. As a matter of fact, MANY people use
WAY TO MUCH primer. If you spray it and the part has just a hint of
primer color, that's all you really need, more is a waste of product
and $$$ and usually adds drying time. Plus, primers are not hard; their
job is to help bond. If you put too much on, some primer will not
become part of the bonding process and leave you with a soft coat under
your hard coat. ALso, don't make your plane a green weenie and wait to
put the topcoat on. Sprayed primers have lives and looses it's
properties after a while, plus it scratches easily. When you see a
Boeing type plane being test flown in it's best greens, it is to
protect the metal underneath. That coat comes off and a fresh primer
coat put on before the topcoat. When painting over old paint, if you
can take the weight, sand it smooth, light primer that is designed for
your top coat, then your top coat. Follow the manufacturers
instructions, wear recommended protection.
jsilberman
On Dec 25, 2006, at 7:15 AM, [EMAIL PROTECTED] wrote:
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any advice in this forum.]----
Gang,
Has anyone used the Orr-Lac zinc chromate spray can primer from
www.skygeek.com?
If so, how does it do with coverage - i.e. how many coats to cover -
compared to Tempo (3 to 4 coats) and PTI ( 1 to 2 coats)?
Thanks.
Tom
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