The Worst Finisher of ALL

LAST EDITED ON Aug-03-04 AT 10:28 AM (CDT)
 
I just came inside from putting the first coat of silver on the latest creation. I used Ployspan on the wings and, up until I spayed on the silver, was really pleased with the results. I have read numerous times how to repair spots when you sand through the poly, but does this still apply after the silver is on. I know this is not the end of the world, but I think it might be close.

It seems the harder I try for a good finish the worse they come out. I just want a pretty airplane.

Thanks,

Call Tom Morris and ask him what to do.

Polyspan requires a lighter touch then silkspan.
Block wet sand with Prep-Sol. If you come to fuzzys or low places you need to spray more paint on those areas then wet sanding lightly till they are filled. If the fuzzys are bad then thin CA pushing down with a baggy on your finger & start over with the paint filling. Sometimes if the areas are too bad you need 3M spot filler (Green)put on with a razer blade. Again start over with the paint filling.

I use Brodak polar gray & 3-4 spray coats fills the grain etc. Maybe a few more spot coats in bad areas.

Make sure you have a bunch of dope on the open bays before sanding. To hard to fix if fuzzys pop up here.

With work you can put a real nice finish on polyspan.

I only use silk span now. It's easier.

Pat,

Thanks for the reply. This seems to work fine. The fuzzy's sanded down pretty easy with the silver coating. I like the durability of the polyspan but tend to like working with silkspan better so far. I will finish my other plane with polyspan also and try not to make the same mistakes.

Thanks,

That's what I said after my first attempt at polyspan. You definitely live and learn with this stuff. Hey Zuriel, how's it going? Will you be at Dallas on Labor Day?

I once painted silk span with polyurethane varnish to get a clear coat finished. It looked great until after a few flights the caster oil fuel caused the polyurethane to get sticky like bubble gum. I sprayed the entire airplane with carburator cleaners from Auto Zone it took the polyurethane right off. I have used carburator on several different types of paint and it will take them all off except for latex paint. Some paints have a cure time of several weeks and if you let the paint dry and cure for several weeks then the carburator cleaners will not take it off. Lacquar thinner will take off latex paint.