I finished a Silent 2 Targa kit this past fall and used the Loehle
Aero Coatings which is a two-part poly formulated for aircraft. To be
sure, there is a tremendous amount of work involved in achieving a
good finish, but the Loehle covering process worked as advertised. I
did use a pricey HVLP spray system that pumped fresh air along with
air for the gun, in deference to the toxicity of this type of
covering. The point of my response here is to say that I did both
sand and polish the two-part poly, to an excellent shine. It was hard
work, but the results are quite satisfying. I'm happy to send a photo
and correspond with anyone who is contemplating using this product.
(I'm not on commission!)

Mike Hostage
Norfolk, VA