Silicone, low viscosity silicone fluid can be used as a safe solvent.
Bath Fluid
Racers Edge 200k 200,000cst Weight Silicone Diff Fluid in Bottle
KitPackers Packaged XIAMETER™ PMX200 Silicone Fluid 200cs 1 gal Jug - - Lab Pro Inc
Xiameter PMX-200, 350 Centistoke Silicone Fluid - 32oz. - Midwest
Silicone Fluid - Foam Fab Supply
Approvals and Conformities Alternate PN%23s PMX200, PMX-200, PMX200-500CST Product Attributes Country of Origin United States Size Quart Shipping
XIAMETER™ PMX-200 Clear 500 cSt Silicone Fluid - Quart Bottle
Silicone Fluids
Brookfield 1000 CPS General Purpose Silicone Fluid Brookfield Viscometer and Asphalt Testing Equipment
Dow DOWSIL™ 550 Silicone Fluid Clear 20 kg Pail
Add this to silicone that seems just a little bit too firm or viscous. Mix as needed, but beware, adding too much will make the rubber very soft and
Silicone Fluid, 1 Gallon