hi
what trade secrets ?? , i have had to learn all i know, i have tried different resins and moulds , i don't use lates , i use silicone rubber , and plastic resin , these are bough trade sizes , the mould for the potato harvester cost ?65 in rubber alone..the rubber moulds last about 25 times depending on what it is that is cast ..
cab moulds i imake are in a 2 part mould , inside and outside , ( a simple pour mould or a squish mould)
i am doing some basic moulds tomorrow & casting , these are marston trailer back door & grain shoot so i will photo the set up and you can see what goes into it ..
dave