[Collins] Collins News

[Dr. Gerald N. Johnson, electrical engineer]

As I understand the wrinkle process you want the surface of the paint to
dry first with a shrinking consistency, then that makes the wrinkle. I
still have the idea of laying down a thick (3 or 4 mils) layer of a
glossy tung oil varnish (cooked longer in manufacture) followed by a
Rust-Oleum fish oil spray or brushed thin layer. Then give it a few
minutes to air dry the spray and then hit the oven.

The lead and cobalt driers often a part of classic wrinkle finishes
aren't allowed in paints these days which makes it harder to make a
wrinkle finish from the classic formulae, but stuff is still being
wrinkled so somewhere there's a paint chemist who makes it work.

Long about 44 years ago, the Washington University Radio Club, W0QEV,
had an ART-13 with dynamotor and it was working. I have no idea if its
still there now.

73, Jerry, K0CQ

-- 
Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.