Gasoline will dissolve it but fairly slowly.

I have a cracked sidepanel in an aquarium I need to remove. Any good
chemicals out there to do it with?

Have heard menthylated spirits....what the hell is menthylated spirits
(sp?) Also heard Turpentinme will do it?

Depends on the variety of silicone. If it's the garden-variety caulking
silicone gasoline works. Many of the automotive gasket formulae are
fuel-resistant.

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Rex Burkheimer
WM Automotive
Fort Worth TX