Hi, I believe this is a simular product to duratec sunshield which can bond to epoxy well. 

Can I use this as a coating over cured xpreg xc110 parts. Let it dry sand it back and then 2k clear coat? Will it bond to the epoxy ok.

Discussed via PM, but for the sake of anyone that stumbles across this thread - Glosscoat no problem over pre-preg, XC110 or other. Great for filling pinholes without having to do a load of sanding. Just prep well with 240 grit first and you're good to go.