Soak a bit up with a piece of paper or cardboard and light it with a
match, and you'll have the answer in seconds. Petroleum based grease
will burn like crazy but silicone based grease won't.

But why do you need to know?

Roy Lewallen, W7EL

Ron in NY wrote:
I got a tube of GB Ox-Gard OX-100 to coat the sections of my Butternut HF9V
vertical as I assemble it. I looked on both the tube, the packaging, and the GB
website, but none of them indicate whether the product is silicone grease based
or petroleum grease based. Does anyone out there know ???
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