Ha anyone used the Composi Mold reusable material?

[Len Woodruff]

It says you can reuse the mold material by heating it in the Microwave but does that make it too hat for the plastic master?

[Skip]

I've used Composi Mold to cast some small parts, for both Roth Models and model cars and such. It works pretty well, I didn't find that it was too hot on the plastic master that there was any damage to it.  In fact there was no noticable effect to the master. In my oppinion, Composi Mold, doesn't give you as crisp of a finished surface on the casting as say a silicone mold compound does. Composi Mold is somewhat simpler to use than silicone. So there are advantages and disadvantages to each. It's a good tool to have when making a quick casting when you are in a bit of a hurry to get things done.

[Oldriginal86]

I’ve used Play-Doh to make simple molds and it smells good and can be reused.

[TarheelRick]

23 minutes ago, Oldriginal86 said:

it smells good

But it tastes nasty.

[oldcarfan]

I suspect it's rather like two part silicone putty, in that it doesn't quite pick up all the details the way poured silicone molds will.