Hot/Fill coat question

[SUPeter]

Don’t know why this comes up now after I’ve done countless Hot/Fill coats on boards and foils but it is.  Just pulled a foil from the vacuum bag while still a tiny bit soft and before trimming it decided to put the fill coat on immediately.  RR 2000, slow hardener cause that’s all I had, additive F, and for the he’ll of it threw in just a little bit of milled fibers.  I figured it just might thicken the resin just enough to prevent runs.  Ran a heat gun over the fresh coat and left it.  Can not notice any difference in clarity.  I must say it’s a hell of a lot easier than setting up my rotisserie machine to keep the wing rotating so gravity doesn’t mess with my hopefully smooth finish. So far, 1 hr, no runs.  I guessing this is some trick the guys who really know what’s going on do all the time.  Anybody else doing this by other methods?  Cab-o-sil, fumed silica....

[surfcowboy]

Havent done this exactly but I added a ton of q-cell to my latest fill/hot coat on a carbon prone board and it came out flawless without any fisheyes. I’m likely going to do that on everything from now on. Too easy.

[Vancouver_foiler]

I think some guys put a cheaper coat of cabosil and epoxy prior to "hot coating". I've tried it on small area and it was the shiznik.

[PonoBill]

low viscosity resins work well too in filling bagged surfaces. You don't wind up with a flattened glossy finish, you'll feel the texture of the peel ply, but it's glossy, nice looking, and less likely to have pinholes--or at least it seems to be.