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Unread 04-10-2019, 05:23 PM   #1
Gozo
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Silicone joint removal

I have silicone in the change of plane joints and in some areas it just doesn’t want to hold to the tile edges. Knowing that any new silicone won’t want to stick to old silicone, what’s the best tool/method to clear out the joints to ready for rework? Obviously I’d want to not go so deep as to risk compromising the underlying Kerdi (I don’t think it goes all the way down that far, but it probably does in some spots). Thanks.
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Unread 04-10-2019, 05:42 PM   #2
Lou_MA
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Utility knife with sharp blades to slice along each side of the joint.

Hook end of a 5-in-1 painters tool to pull the silicone out.

Paint scraper with flat razor blades to remove residue from tile faces
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Unread 04-10-2019, 11:26 PM   #3
Tool Guy - Kg
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I do like Lou to get as much as I possibly can off. Then use mineral spirits to dissolve the remaining residue to clean it to the bare surface.

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Unread 04-11-2019, 06:03 AM   #4
claycarson
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Jeff, I do the same as Tool Guy and Lou said.

If you wanna dissolve the residue that won't come, I've used acetone with a nylon scrub pad. One pass won't do it, but multiple ones will.
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Unread 04-11-2019, 03:03 PM   #5
Gozo
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Thanks guys. I didn’t think of the painters tool. I’ll get in there and start digging when the mood strikes. It ain’t goin nowhere too soon.
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