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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Silicone and plastic waste pipes
Just got back to this job after a few months of distractions. I tiled
the floor in our downstairs bog as part of refitting the whole thing. The old waste pipe for the sink was a copper jobbie, cemented into the floor. I cut the tiles/grouted around a new plastic pipe (with a compression union just above the floor level, to take the new waste) and sealed this around using silicone. Coming back to it after a few months, I expected the silicone to have cured etc but, although it has gone off well and filled the gap on the tile side, it doesn't grip the plastic at all. I rather expected it would grip the thing properly, so it would hold while I tightened the screw thread. Obviously I now need a Plan B. Is there something I should do to treat the plastic pipe so the silicone adheres to it, or is there another preferred strategy for this situation? Can't see any potential for an angle grinder here, but you never know..... |
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