Amazing Casting Products: Perfecting Designs with Amazing Mold Rubber... by Tanya Ruffin

I have been using Amazing Mold Putty for a few years now and I molded probably 100 items. One thing that has been difficult have been the designs with undercuts. It will work, but my mold finally rips apart after I have peeled the resin out so many times or the resin doesn't completely fill those areas.

The Amazing Mold Putty mold for this piece has been damaged beyond repair and it was time to cast a new one... Amazing Mold Rubber arrived just in the nick of time! CLICK HERE to view original project.

This is my first attempt at casting a silicone rubber mold.

I took one of my pieces that I had sculpted (and preciously molded and cast in Amazing Casting Resin) and re-molded it... Perfecting a less than perfect mold.

You can see on this cast that the undercut area

(between the folds in the banner) don't always cast well.

The red casting is one that I touched up with some fimo clay and is the one I used for my new mold using Amazing Mold Rubber.

Tape (I used glue dots) the item flat-side down in a receptacle. I used an Altoids tin. The bottom will then be the top of the mold.

Using the directions on the Amazing Mold Rubber – I mixed up an 10:1 ratio of base to catalyst. It would have been much easier to mix the whole container at once, but since it was my first try at it I was a little scared it would be a total loss if I used it all.

Pour the mixture over the items in the receptacle and wait. Mine took way longer than the 2-3 hour cure time. I think it is because it is cold and rainy here. Weather may be a factor in varying the cure time.

Finally when it was no longer tacky, I pried the mold out of the tin.