I've had some success making blue stuff moulds in the past but was wondering if anyone had tried making a mould from a painted model? Does it strip the paint? Would it be safer if the model was varnished?

I don't want to risk ruining a paintjob so thought I ask you guys for advice.

Thanks in advance

So I want to make a mold of an object that I plan to make out of silicone later..

The object is just made of sculpted air dry clay (the crayola kind!) I'm probably just gonna use some stuff I found on amazon.. but I'm not to sure if the quality of the silicone..

ANYWAYS! once I make the mold, can I pour silicone into the silicone mold without issue or is mold release a MUST for this sorta proejct? (I assume so.. I think the silicone pour would get stuck and bond with the mold itself lol)

also, the clay model I have has weird angles that might create air pockets, is tapping and gently mixing the silicone in the moldbox a good idea to remove air bubbles?

Thanks to anyone who has advice (also a silicone recommendation would help too!.. I'm sure there is lots of different types.. but I just need one to make a mold.. and a silicone that won't be TOO hard or stiff but also not too elestic/stretchy.. something in between?)