Fixing a friends indestructable broken surftech. Repair requires glass so i used eopxy ding repair kit he bought.
My question is does one hot coat when using epoxy resin?
If so do you increase the ratio which was 2:1 A:B?
Thanks for any quick help.
Never change epoxy ratios.
You can hotcoat with more epoxy. Surftech hotcoats with poly. If its just a ding repair, even with glass, it’d be easiest for you to hotcoat with UV poly sanding resin. Brush it, get it in the sun for 20 seconds, put it back in the shop with doors closed & windows covered for 3 minutes for the wax to rise, then back outside for 15 minutes. Hit it with 220 & 600 grit & you’re done.
Thanks, Perfect answer. Love this place.
Quote:
Never change epoxy ratios.
You can hotcoat with more epoxy. Surftech hotcoats with poly. If its just a ding repair, even with glass, it’d be easiest for you to hotcoat with UV poly sanding resin. Brush it, get it in the sun for 20 seconds, put it back in the shop with doors closed & windows covered for 3 minutes for the wax to rise, then back outside for 15 minutes. Hit it with 220 & 600 grit & you’re done.
I thought you should never put poly on epoxy? But epoxy over poly is fine??
Your poly lam to foam is a pure mechanical bond, right? No chemical interaction? So as long as you do a nice dry lam with lots of cloth texture showing, you’ll get a great mechanical bond with poly on top of your epoxy. I wouldn’t do a poly gloss over an epoxy hotcoat, but as long as your lam is sealed, no pinholes, etc. and the poly won’t get to EPS if you used that, a poly hotcoat is fine. I think Epoxy Pro/XTR even does their jobs that way (but I’m not certain). I haven’t had any problems with poly hotcoats coming off epoxy laminations or ding repairs…