How to deal with bubbles in FRP mold making

At the corner, chopped glass fiber and resin can be mixed into paste, coated on the corner in advance, and then chopped felt can be laid. When making molds, the bubbles in the previous layer should be checked before each layer is laid, and the bubbles should be treated in time after they are found to be broken, and then the layer should be laid slowly. When adding common methyl ethyl ketone peroxide (such as m-50, kp 100), vinyl resin will produce bubbles. Because of the high content of hydrogen peroxide, it will take some time. It can be replaced by a special curing agent for vinyl resin (LPT or 239, etc.). ), can effectively reduce the generation of bubbles, of course, after adding defoamer can also be used.