Well, I am finally close to putting this project behind me. It is certainly an exercise in what no to do. First I had to remove the Popyspan that was wrong side up.. This was not the end of the night mare...You would think that after 40 years of finishing with no problems that I would have learned.
But I had to try different things....
I wanted to try the new "silkspan". In one word DONT'T..
This is not the fault of John Brodak (or Sig either) . This stuff is terrible and is not even close to the friendly silkspan that has been part of our lives.
After 6 coats of butyrate clear it did not start to fill. And as said by others, it sags between every coat but will tighten back up.
So I used Sparky's method of the NAPA primer. Yes this works, but due to the terrible "new silkspan" it took several coats. sanding between coats..
Next due to materials already used I could not use nitrate over the fillets (superfil). The result is small cracks of the paint over the fillets. Even with thin CA and primer over that, the splits are still there.
The only way to avoid this is nitrate over the bare fillets or using a catalized auto primer over the fillets (preferred).
Next I have use my own vinyl masks and have made the same of many others with absolutely no problems.
I used a metallic brown base coat the require too much reducer and than tried to rush it resulting in melting the mask edges. So, many of the letters and numbers had to touched up.
If you stand off, way off, it will look OK but to me it is possibly the worse I have ever done.
As pictured, it will wait for some decals and clearcoat until I finish John D'Ottavio's 1967 "Jet Falcon"and my new design "Ragtime" all electric stunter for Pampa stunt.
Again, Brodak and Sig are not responsible for the terrible quality of the "new silkspan".
I hope that this will help people avoid future problems.