03-12-2010, 07:41 AM
Im definately no guru but I always keep the first cast seperate if I don't have the master(actual part, production or scratched. When Im finished doing my casting I spray the mould with 'Smoothon Universal Mold Release' I believe its like vasaline. I then wrap the mould in glad wrap(kitchen wrap) & store in a dark place. I don't know if this actually helps but my intuition just sort of tells me it would or should.