Silicon on silicon?

Tesral · Post by **Tesral** » Sat May 02, 2015 5:59 pm

A question to the casting crowd.

I was just pouring rubber and grumbling about my spatulas' lack of flexibility.

Now I know that RTV sticks to RTV like nothing else. What about food grade silicon spatulas? Can they be used more than once, or do they mate with the RTV never to part?

TazMan2000 · Post by **TazMan2000** » Sat May 02, 2015 11:11 pm

I've never molded a spatula before, but I'm sure you'll be fine. RTV is a bit of a different recipe that the food grade silicon but if in doubt, coat your piece with a thin layer of vaseline. You always could take a small drop of your RTV and dab it on a spatula to see what happens.

TazMan2000

Tankmodeler · Post by **Tankmodeler** » Wed May 06, 2015 3:08 pm

Just about the only thing that RTV silicone will stick to is silicone and it bonds to that like you never saw.

Get a spatula of a different material and all will be well.

Paul