Hi, further to the previous post re various tools for a good finish:
(1) What do you folks recommend regarding weighing the bath down, so the
gap is not opened when full with a body in?
This is only probably a couple of mm but repeated stress seems to quickly
open the badly-applied sealant (which is why I want to do it again).
It seems wasteful to put loads of water in the bath ... I suppose I could
put lots of books and stuff in, and then stand or sit in the bath while
doing the job? How do professionals do it?
(2) What's the best way to remove old silicon sealer, to completely replace
1. Fill bath with water is what I do. I have made in the past made a board,
out of old block board and 2"x2" covered in cloth to sit on top of the bath
to allow you to work near the joints without getting wet. If bath does move
more than a mm when full, then fix it, no silicone will be able to cope with
this. I ended up screwing a nicely routed peice of 2"x" to the wall to
ensure my bath would not move.
2. You can get silicone sealant remover. Follow instructions and it works
fine. Used it numerous times to remove crap builder installed silicone and
replace with my own attempts !!!
Sorry to be the bearer of bad news, but movement of a couple of mm will
cause even well-applied sealant to break down eventually, irrespective of
whether you apply sealant with the bath empty in the up position, or full of
water in the down position. Advice to apply sealant with the bath full of
water defies logic. The only fix for this problem that I know of is either
to support the edge of the bath on a wooden frame so that it doesn't move
when being used, or fit a bath edge sealing strip, such as Teleseal, which
is able to cope with movement. Other than that, replacing an acrylic bath
with a steel bath is the only other solution.
DIY, the Teleseal looks a great solution - however, the builders have
recessed the bath into the wall a bit, and the tiles come down to the edge
with a *very* small horizontal lip, particularly in the middle where the
bath is slightly wider - so the Teleseal wouldn't have the 1cm+ purchase on
Actually, this recess, I think, prevents water going through too much,
because there must be over an inch of bath going into the wall under the
tiles. There isn't a problem, just that the sealant is stained and breaking
up, having been in probably over 7 years.
The builders don't seem to have used much sealant anyway, and I thought a
good, thick strip, maybe leaving it a little proud? Also, perhaps getting
one of these stick-over strip things, to direct the water away from the
(The tool-thingy looks good, too, for a novice like me, who has the kitchen
to do as well while I'm at it!)
What do you think.
In the circumstances fresh sealant and a bath edge sealing strip seem your
only options. Fit the sealing strip with the bath empty (in the up position)
so that the bath edge moves downwards slightly when in use. This will open
up a small gap between the bath edge and sealing strip but the sealing strip
should still provide a run-off for any water. If you fit the sealing strip
with the bath full (in the down position) then repeated emptying and filling
of the bath will result in upwards pressure on/movement of the sealing
strip, causing the adhesive to fail.
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