Silicone pads and Mineral Spirits

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Forum topic by woodchuckerNJ posted 06-14-2021 05:04 PM 334 views 0 times favorited 2 replies Add to Favorites Watch
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1499 posts in 2792 days

06-14-2021 05:04 PM

Topic tags/keywords: tip

I have a silicone pad that my wife gave me. I use it for mixing finishing epoxy , and other messy things.

I was cleaning out a brush cleaner, filtering it from one container to another using a cloth to remove the solids,
I didn’t notice that the container had tipped. Well that should be no problem the silicone should hold the mineral spirits in… WRONG.
The darn thing controrted into all different dimensions.. Apparently silicone is not compatible with mineral spirits.
I know MS is a cleanup/thinner for silicone, but I figured cured silicone was impervious to it… WRONG..

Trying to get it back to shape now with pieces of wood on top to flatten it, the sides appear to have started coming back..

Just thought I would do a public service announcement.

-- Jeff NJ

2 replies so far

View Kelly's profile


3647 posts in 4103 days

#1 posted 06-20-2021 09:53 PM

I’m going to have to do some experimenting with some of mine. Thanks for the heads up.

View Tony1212's profile


543 posts in 2893 days

#2 posted 06-21-2021 01:28 PM

I have one of those Rockler blue silicone project mats that I was using to protect my table top while cleaning something (don’t remember what) and I got the solvent (alcohol, acetone, or mineral spirits – don’t remember which) all over the mat. I wasn’t too vigilant in cleaning it up, figuring it would dry out overnight.

When I came back the next morning, it had “bubbled” up. Not that the silicone was dissolving or anything like that, jut that the areas where the solvent had been “doomed” up. My flat mat had little hills all over the place. I cursed to myself figuring that I had just ruined $30.

But after a week or so, everything went back to normal and its now flat as the day I bought it.

-- Tony, SW Chicago Suburbs

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