Blue silicone for casting tube-in molds

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nobdyspecial

Member
Joined
Feb 10, 2019
Messages
23
Location
Edmonton
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
 

Ed McDonnell

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Joined
Oct 20, 2008
Messages
2,293
Location
Melbourne, FL
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