Can I use a thinner to make the epoxy more flowable?
A. The 300/21 system is very thin, so you should not have to thin it. If you really, really, want to, the answer is yes. The best thinners are lacquer thinner, acetone, MEK, Toluene, or xylene. The only thinner to avoid is regualr paint thinner, also known as mineral spirits. These thinners are flammable, and the epoxy generates heat while it’s curing- So it is best to add the thinner then spread immediately. This allows the thinner to evaporate. Use as little thinner as possible. Remember that any thinner needs to evaporate, so avoid using thinners in castings or laminates.
