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Just scrape as much off as you can and put the gel on the remaining silicone and let it sit for 5 min and it breaks up and wipes off. Then you wash the cleaner off with water. It is biodegradable. Just finished removing very old silicone sealant from a flat laminate top.
It's pretty obvious that it's where they glued the sink then wiped off the excess with a thumb... Somewhat of a faint residue of silicone. Now I know most people would say just to ignore it but when you spend so much money on a kitchen renovation and a $350 sink it's really hard to ignore. Anybody have any ideas of a solution that will remove it.
3. How to place the new silicone caulk: Use masking tape (1/2 or 3/4 inch wide) to mask off the joint you're wanting to caulk. Use 3/4 or even 1 inch wide masking tape if you have little experience caulking. Put the edge of the tape about 1/4 inch away from the joint on both sides of the joint.
Leave the inner side caulk free, so it drains properly. Aggie is right, I caulk the entire outside and I caulk the inside verticals. However as Aggie stated those slits are weeping holes and should be left open. :thumbsup: Occam's Razor - The simplest answer is probably the correct one.
WD-40 will help if the caulk still has some tack to it. "Ask me anything. If I don't know the answer I'll make something up.":laughing: I use a plastic putty knife sanded to a point at a slight angle. (to steep an angle and it will dull easily) Then a white Scotch Bright pad.
Personally, I would apply the DAP Silicone-Be-gone on both sides of the joint and use the Magic Eraser to remove the silicone after allowing sufficient time for it to soften up. A Magic Eraser may seem soft enough to the touch, but the plastic it's made from is quite hard, and will easily scrub off softened silicone caulk.
If there is, taking the tape off will be a mess. You use your finger or rag or whatever to smooth the joint, and at that point the edge of the caulk thickness should be virtually zero. Pull up the tape immediately after caulking. If you get a nasty looking edge, then you put the caulk on too thickly over the tape.
Quickest Easiest Way To Remove Silicone If you are working on a porcelain surface, the quickest and easiest way to remove old cured silicone or silicone caulk is to use a pumice stone. You can find this at any DIY store or department store that has a cleaning section. It's usually called a "Pumie" stone. Get it wet and make sure it stays wet.
There is a silicone caulk remover out there that works really well. It's called McKanica Silicone Caulk Remover. We've found it at big boxes and hardware stores. We don't make it or sell it, but always recommend it because it does a great job of removing silicone and leaving a good, clean surface for re-caulking.
Tape it, put a bead, and smooth, remove the tape and one final light pass with your finger. You may want to try a caulk tool to smooth it. It is good at removing excess caulk. I would not want to use silicone without taping the joints. Tape leaves such a nice edge. I don't mind spending money, I mind wasting money.