could you elaborate on this? Did you mean break up the binding agent of the matt or the epoxy? What is the polyester based product?
thanks, rondane
The glass fibers in mat are held together with a kind of "glue", called a binder. This binder is dissolved by the chemicals in polyester/vinylester resins after the mat is "wet out". It was not dissolved by the chemicals in epoxy resin, creating issues where the resin would not "stick" to the fibers. But- most mat on the market today is compatible with epoxy resins.