Tanking

[Stef]

Tanking out this shower, it's the 3rd one I've done in as many weeks where the plumbers have fitted this seal strip round the tray as they state it's waterproof!!
I've given this shower it's 1st coat of paste & then ran a bead of Silicon up the 2 internals ready for corner tapes.
It got me thinking, as the corners are as tight with plasterboard, in theory this should now be waterproof as is, has anyone ever done any tanking without corner tapes?
Is anyone else seeing plumbers using this tape more & more?
The merchants must be pushing it hard.

 

[Spud]

I've not seen it Stef , what is it actually doing in terms of waterproofing it doesn't seem to touch the tray or is it stuck to the side of the tray in some way ?

 

[Qwerty]

No, not seen it either

 

[J Sid]

you mean something like this
used them many a time

 

[Old Mod]

If it's the same as Julian's showing, they're excellent.
When I replaced a damaged tray end of last year it was what saved all the walls from water damage. Brilliant stuff.
It's double sided sticky rubber tape effectively. When its first stuck on u can pull it on and off to reposition it, but once it's left to cure, it's an absolute complete mare to remove!


I was trying to get tray out without damaging bottom row so was trying to hook it out. Haha yeah, didn't work so well.

 

[Stef]

Yeah, it's the same idea as the picture Julian put up.
The plumber I spoke to previously said it is expensive but they now think that the shower is waterproof & were wondering what the paint on stuff that I was using was for!!

 

[Stef]

Need to start putting the MapeiGum on the walls!!

 

[Old Mod]

This is one I use Stef

View: http://youtu.be/NjhkCs0M-Qw


Classi Seal Flexible Waterproof Self-Adhesive Upstand - 2M

 

[J Sid]

This is one I use Stef

View: http://youtu.be/NjhkCs0M-Qw


Classi Seal Flexible Waterproof Self-Adhesive Upstand - 2M

yes, that the one.
3.2 Mt for £34.46 incl

 

[Old Mod]

yes, that the one.
3.2 Mt for £34.46 incl

Oh I might add, Julian put me on to it. 🙂

 

[Spud]

How does it work? Apply to the wall , peel back tape then fit the shower tray against it ?

 

[Stef]

How does it work? Apply to the wall , peel back tape then fit the shower tray against it ?

Stick it to the tray before install & then you Silicon the back edge to the wall with low mod Silicon.
That's the way the ones I've seen have been fitted.

 

[J Sid]

lI do the other way, stick to tray, crimp external corner and stick to wall

 

[Old Mod]

How does it work? Apply to the wall , peel back tape then fit the shower tray against it ?

Yeah I fit to tray first too.
It's like a bitumen type adhesive. But solid at first, a bit like plasticine.

 

[Spud]

Thanks guys

 

[LM]

I like to over lap the classi seal with tanking tape also, just to seal that joint, then I tape the internal corners. Nearly all my work is in fast track new builds and the shrinkage is shocking, this is a great way to deal with it. I haven't had a failure yet with it.