Wax cast from fibre glass mould

I had cast this mould in a black modeling wax I usually use in Ireland. This wax is great because after the cast is made you can work again on the object to fix up any imperfections. The wax is hard a room temperature but softens easily.This wax is great for texture and detailed figurative sculpting.

But here in Madrid at the moment its 35 degrees and inside the workshop it was 40 and the ventilation has broken.When I opened the mould the wax was still really soft and just came to pieces.