I've seen the two posts about cleaning equipment with acetone, can you tell me if I can also use it to clean my RTV silicone moulds that I've cast using your products?

Hello
The way to tell is test another piece of silicone rubber. Perhaps a spot on the outside of the mold. Put some uncured material on it and try to remove it with acetone and see what happens. Try lacquer thinner or vinegar or primewash or whatever else you have until you find something that works without damaging your mold.
Hope this helps.
Fred

Think Fgayford is right,