Tug, Martin, Thanks so much for the encouraging comments, means a lot!
Sandy,
Thank you as well. The longer part of the answer.......... I have struggled with Gloss and Matt or Satin clear overcoats for years and finally found these (New) products through one of our members, Chris Johnson. They are OUTSTANDING products, and I'm sold on them. Polyurethane Varnish in Gloss(#26.650), Satin (#26.652) and Matt(#26.651) The short answer, the thinner used with them is Vallejo "Airbrush Thinner" #71.161. They work well over enamels, acrylics, lacquers, and even Future applied as a gloss before decaling. I use a 40/60 ratio of thinner to varnish respectively and the normal 20-23 psi pressure on the airbrush. Drying on the matt is almost immediate and I can apply a second coat within 10 minutes if keeping the coats light.
Cheers,
Lance