re-sealing the bathtub

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ColinR
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re-sealing the bathtub

Post by ColinR » Sat May 05, 2018 4:00 pm

I'm trying to re-seal my bathtub.

The tiles at the top end of the bathtub have come unstuck from the plank underneath them. That plank itself isn't well secured.

How easy is it to remove the dried tile glue (grey) from the back of those tiles? (If it's easy enough, it would save me the trouble of sourcing and cutting new tiles.)

Right next to the bathtub is a wooden box that allows access to the sink's isolating valves. I'd like it to be waterproof (so that shower water doesn't run down into it) but still want to be able to remove the lid without too much trouble. Is there a standard way of doing this?

Thank you,

Colin

p.s. I've attached photos.
Attachments
IMG_20180505_153254.jpg
the 'box' with the lid on
IMG_20180505_153254.jpg (141.69 KiB) Viewed 734 times
IMG_20180505_153206.jpg
the 'box' with the lid off
IMG_20180505_153206.jpg (118.59 KiB) Viewed 734 times
IMG_20180505_153155.jpg
do I need to do anything with the filler between the taps and the tub?
IMG_20180505_153155.jpg (128.38 KiB) Viewed 734 times
IMG_20180505_153148.jpg
tile sits on underlying plank
IMG_20180505_153148.jpg (116.75 KiB) Viewed 734 times
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Re: re-sealing the bathtub

Post by dewaltdisney » Sat May 05, 2018 5:26 pm

Take the tiles off and soak them in a bucket of water. The glue goes pasty and you can easily scrape it off. Wood is not the best substrate for tiles as it always moves and the tiles eventually pop. Aquapanel is good but at £40 a sheet it is a bit of an overkill.

On access panels see https://www.buildingmaterials.co.uk/rev ... panel.html?

DWD
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Re: re-sealing the bathtub

Post by Gadget » Sat May 05, 2018 8:49 pm

If water-proof adhesive was used, no amount of soaking will soften it and the tiles will be useless.
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Re: re-sealing the bathtub

Post by big-all » Sat May 05, 2018 10:10 pm

i personally would aim for the tiles to be about 2mm higher than the sink and use a 2mm bead between tiles and sink
this would allow some old adhesive to be in place when refitted
if the timbers are particularly wet let them dry before fitting the tiles as that can cause movement and shrinkage
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Re: re-sealing the bathtub

Post by ColinR » Sun May 06, 2018 12:27 pm

Thanks all.

I'm soaking the tiles now.

@Gadget: if the adhesive is water-proof, are you saying that this will damage the tiles, or just not help? http://homeguides.sfgate.com/remove-reu ... 37276.html suggested using muriatic acid to dissolve mortar.

@dewaltdisney: thanks for the Aquapanel suggestion, which I didn't know about. Is it too cheap of me to wonder if a could get cast-offs at a builders' merchants? (I need about 2'x3".)

@big-all: the access panel's a good idea. The idea is to then seal the top, but leave the access panel (on the side) unsealed?

Ta!
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Re: re-sealing the bathtub

Post by dewaltdisney » Sun May 06, 2018 4:29 pm

Shame, I recently junked a piece of Aquapanel that would have suited you. Sometimes you can be lucky and get a half or broken board in the sheds.

DWD
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Re: re-sealing the bathtub

Post by Gadget » Sun May 06, 2018 9:23 pm

[quote="ColinR"]Thanks all.

I'm soaking the tiles now.

@Gadget: if the adhesive is water-proof, are you saying that this will damage the tiles, or just not help? http://homeguides.sfgate.com/remove-reu ... 37276.html suggested using muriatic acid to dissolve mortar.


No, I'm saying the waterproof adhesive will not soften when soaked in water and you will probably damage the tiles trying to remove it.
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Re: re-sealing the bathtub

Post by ColinR » Mon May 07, 2018 9:10 am

Thanks @Gadget.

You're right: overnight soak hasn't done anything to the adhesive. Muriatic acid on its way...
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Re: re-sealing the bathtub

Post by Nigel 206 » Sat May 12, 2018 1:38 pm

If you've got a mini angle-grinder with a masonary disc, and thick gloves,and eye protection
you could hand-hold the tiles and grind off the old adhesive.
Usually comes off very easily.
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