Which Epifanes varnish should I use. 

After using an Epoxy to seal the wood, it is advised to use a two component varnish. This is our Poly-urethane Clear Gloss. In the video about two component varnishes this product is explained.

@@WHeeren1 Thanks for the response. I already ordered the Rapid clear before I saw this. Is that a bad choice?

If the epoxy is well cured, cleaned and sanded, Rapidclear can be applied. Clean the epoxy well with Acetone and sand the surface with a 180 grit. Then it can work. However, optimally is always to seal an epoxy with a Poly-urethane.

Yes, a previous painted Awlgrip surface can be repainted with Epifanes Poly-urethane varnish.