Since you are already using the Polyfiber's SuperFil and Smooth Prime
products you must know about their Pre-Prime Sealer ("the pinhole killer").
Polyfiber's literature makes it clear that the Primer alone will not fill
pinholes and accordingly recommends three rolled-on coats of Sealer (two
coats in quick succession followed by a final coat after the first two fully
cure). My project now has only the first two coats, so I can't tell you
that it really kills pinholes, but I have no reason to doubt the claims.
One other advantage to this product is that it has a glossy finish making it
much easier to see imperfections that I missed when I sanded. Fortunately
SuperFil can be applied directly over the Sealer.
I have developed an allergic reaction to the Aeropoxy stuff, and now have
discovered that the Pre-Prime Sealer likewise causes a reaction so I use a
respirator with a cartridge that absorbs organics as well as filtering dust.
That helps a lot.
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airframe complete
Irvine, CA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of paul stewart
Subject: Europa-List: pin holes
<paul-d.stewart@virgin.net>
Having thought we were doing quite well with a 6HP vacuum to reveal pin
holes, the application of a compressed air blower has revealed yet more of
the little b*****s. Are we correct in continuing to fill and sand until the
last pin hole is banished or does primer take care of the odd one or two?
We are using superfil and intend to prime with smooth prime.
Regards
Paul Stewart #432
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