Scalecoat sanding sealer question

[twilight]

I am about to build my first wood rolling stock craftsman kit, a PRR bobber cabin car from "Ye old Huff N Puff". It was recommended to me by my LHS to use Scalecoat sanding sealer for my wood kits(for now I have several) before painting the wood surfaces. Reading the instructions last night I see you can use the sealer in an airbrush when thinned. So this is my question(s), how should I use this sealer? By using an airbrush or a paint brush? What do you prefer? Or do you even use this product? :?:


Thanks for your input,

Mark