waxing a mold

[virginforest]

I made a mold of a catfish and im gonna try making a cast this weekend (didnt get a chance to do it last weekend).  I made the cast using bondo and resin method.  My question is after you put 3 layers of car wax on the mold (buffing out inbetween layers) do you need to re apply wax inbetween castings or after a couple casts?  I just wondered if it would help protect the mold and make it last longer.

[John C]

Yes, you wax between castings.  I seal the mold with shellac and allow it to dry for a couple days then wax. 99% of the items pop right our even the ones with heavy undercuts.

[virginforest]

cool, thanks John