I am finishing the balsa sheeted foam wings with cloth and resin (ZPoxy Finishing Resin). After the initial application of the cloth/resin, what is the best way to proceed to fill the cloth weave ? Additional coats of (thinned) resin ? or paint primer ? Thanks. Bob

ZPoxy is good stuff. Sand the first coat somewhat, then apply a second coat, and use an old credit card to squeegee it into the weave and leave very little on the surface. Should have a nice sheen, but not wet look, when you are done. Sand this rather lightly. Then prime. Can't get the good old K&B primer anymore, so I use Rustoleum in the spray can. Several coats, with sanding, until the weave is filled, but with very little left on the surface.

Then ready for final color paint.

Clair Sieverling

I just finished glassing a small Corsair that I scratch built. I used Great Planes resin which I understand is similar to Zpoxy and shot it with Rustoleum primer. I was told by a gentlemen in the warbird area that after the resin and before the primer, lay down some Spot Putty over the entire airframe. I thinned it with acetone and it covers beautifully. Even better is that it sands better than primer and it is wet sandable too. After you can put on a thinner coat of primer and wet sand out. I can't tell you how much better the finish is on the top wing(where I used the Spot Putty) than on the bottom (only primer) It is a hidden secret better than penicillin.

It is made by Bondo and comes in an orange tube, SVX

This is the stuff that is made to fill the weave in a glass
job....the hot ticket is to thin this stuff with "styrene
diluent"....it makes a real flat, easy to sand surface.

Dave.

where do you get this stuff?
as in the photo above

....at a fiberglass/plastics supply house. If all else fails....

....Hastings Plastics....Santa Monica, Cal. (they ship)....
....310-829-3449....

here's a spray can paint job....over the sanding resin,
and primer....(auto enamel)....