Hi guys, i could not find any kind of wax fillet in my place, i'm so struggle to make a mold as im kindly use oil base modeling clayto replace "couldn't found wax fillet". my modeling clay doesn't work really well, it always stick on the gel coat and the shape i made alwaysrun out from the edge. can u guys help me out, is there any kind of option for me, help plss im noob.