Blue silicone for casting tube-in molds

[nobdyspecial]

Does anyone know what type of silicone is used to make those nice blue tube-in molds that some suppliers offer (PTownSubbie)?
I know they are supposed to be good for PR, Alumilite, and Epoxy, unlike the pink ones, which don't do epoxy well ( It seems the pink molds are made from Alumilite High Strength 1).

Any guidance on this would be appreciated, as I'm just getting into casting and planning to make my own molds.

Jonathan

 

[elyk864]

I bought my mold and some resin from here.

CASTING MOLDS - Page 2 - Pen Kit Mall

Quality Molds for your Casting Projects

penkitmall.com

 

[nobdyspecial]

I bought my mold and some resin from here.

CASTING MOLDS - Page 2 - Pen Kit Mall

Quality Molds for your Casting Projects

penkitmall.com

Thanks for that link, it's a website I hadn't seen before. I already see a few things I like there.
But I was actually looking for the type of silicone that is used to make the molds.

 

[Ed McDonnell]

Have a look here:

https://www.smooth-on.com/product-line/mold-max/

or

Smooth-Sil™ Series, Platinum Cure Silicone Mold Making Rubber

Platinum Cure Silicone Rubber

www.smooth-on.com

Lots and lots of choices. There are a lot of technical resources available on the site that will give you plenty to think about. Don't fixate on color. Look for the properties that will meet your needs.

Ed