Using two different silicones for a two part mold

[PlanetAlexander]

I've recently tried making my first two part mold from C1200 silicone. Unfortunately there were quite a few problems (as would be expected for a first try). One of the sides didn't cast the detail quite right and even after attempting to fix it, it still doesn't work. I've got some Rebound 25 left over (hopefully enough) and I was wondering if I could try and recreate the bad side of the mold using it? This means that one side will be made from C1200 and the other from Rebound 25.

 

[TazMan2000]

It shouldn't be a problem if the good side is still stuck in the silicone. There 'may' be a slight (micrometers) variation in the size of one side if the consistencies of the two silicones differ after you cast parts, but it should hardly be noticeable.

TazMan2000

 

[PlanetAlexander]

Ha ha ha... um...

I pulled it out long before making this thread to assess the damage. Thanks anyway, if I can't save the bad side then I will remake it.