Mold making SOS
Did the mistake of creating a Tin cure silicone mold from a sculpt that I wanted to cast platinum (Ecoflex 30). I learned that platinum won't set up on tin, so Im a bit stuck. I'd like to just make a new mold with a material that's compatible with platinum silicone. I destroyed the original sculpt without thinking this would happen, so I took the existing Tin mold I have and casted an oil based clay (monster makers clay) into it. I can make a new mold from this oil clay casting. I'm worried that since the oil clay casting has been in contact with the tin mold if I made a platinum mold from this cast it it won't set up because the clay was in contact with the the tin mold; true or false? Anything I could do to "waste" the tin residue off of the new oil clay cast if this is going to cause a problem? Hope this makes sense!