ORIGINAL: vertical grimmace
I am getting ready to do some glassing on a couple of my planes. Will be going over balsa with .75 oz cloth. I have some resin from ACP composites that works very well. What are you guys favorites otherwise and the pluses and minuses. I have heard of doing a flow coat. A second coat after the first has been cured and sanded. The fella add west systems 410 and lightly thinned it with acetone, then spread it over the entire structure thinly. Your thoughts will be appreciated.
The epoxy or polyester finishing resins will build a fairly heavy part in the end but it will usually be fairly tough and more resistant to hanger rash. These tend to get thick
If weight is a consideration, then it is hard to beat epoxy paint to lay down thin, light fiberglass. I used KB 2 part clear for years until it was discontinued. Currently, Klass Kote epoxy paint works very similarly to old KB. Epoxy paints fully cure over a period of several weeks to a hard finish but they are easy to handle fairly quickly, within 12 hours or so
The lightest method is nitrate dope. It is light, extremely thin, and dries firm. But because of such thin section it can get hanger rash so one has to be very careful....Any finishing system will get hanger rash if finished thin tho. If it's a glow application, nitrate base coats will require fuel proofing. Epoxy paints, polyurethane car paints (Omni, Concept, Imron etc), butyrate dope, water based paints like Createx, all work fine. Createx will require a final clear coat.