Waterproofing shower drain seal?

[sandspider]

Hi folks

Another shower question please.

When it was installed, our shower drain had some sort of rubbery coating waterproofing the fall from the tiles to the plastic drain. This has got tired and is flaking off. What can I replace it with to make sure all the water flows into the drain, not under the tiles?

Pic hopefully attached.

Thank you.

[ditchman]

whatever you do.....when you clean it ready for glueing or whatever....use thinners to remove every bit of grease   before applying glue or whatever...

[oldypigeonpopper]

Hello, Will that metal part of drain come out ? is there a screw on top ??

[sandspider]

The grey plastic bit at the bottom is fixed into place. No screw.

[old'un]

You need something with give, silicone bathroom sealant, clear or white, as been said make sure the area you wish to seal is perfectly clean before applying sealant.

[oldypigeonpopper]

1 hour ago, sandspider said:

The grey plastic bit at the bottom is fixed into place. No screw.

Hello, Ok , my suggestion would be to buy some thin rubber sheet or if you can get a seal same diameter as the outer edge but with smaller hole to cover the plastic bit so the water escapes without going down the sides, clean up well to the surface and outer edge  then sit seal  in and use some water proof glue , 

Edited December 29, 2024 by oldypigeonpopper

[ph5172]

Cut the old seal back and see where you are at. 
 

As has been said some good quality silicone or some plumbers mait 

[JKD]

Is this still in the off topic section rather than the DIY department ?! 🙄🤷‍♂️😇🤣

[Westley]

Are you SURE that centre piece does not screw out  ? The three flange pieces look like they form a 'grip' to enable it to be unscrewed for cleaning. Try using a pan scrub and some WD40 to clean it up, enabling you to see the thing clearly. It looks like it screws out. This would enable you to use some Plumbers Mait or better still Fernox LS-X jointing compound. Alternatively,  you may be able to use the LS-X around the outside edge to form a seal. I have just used this stuff on a gutter joint that was dripping,  it's now sealed. I also once used it to plug a stone hole in a Disco radiator.  It was still there after 5 years  !

Just now, Westley said:

Are you SURE that centre piece does not screw out  ? The three flange pieces look like they form a 'grip' to enable it to be unscrewed for cleaning. Try using a pan scrub and some WD40 to clean it up, enabling you to see the thing clearly. It looks like it screws out. This would enable you to use some Plumbers Mait or better still Fernox LS-X jointing compound. Alternatively,  you may be able to use the LS-X around the outside edge to form a seal. I have just used this stuff on a gutter joint that was dripping,  it's now sealed. I also once used it to plug a stone hole in a Disco radiator.  It was still there after 5 years  !

Forgot to say, Screwfix or tool station sell it.........not cheap.....around £6 a tube. Follow the instructions and store it correctly,  it will last and does a multitude of sealing jobs.

[Westley]

20241229_160627.heic

[sandspider]

Thanks all. Definitely doesn't unscrew, looks like a good clean ans degrease and feenox lsx will do the trick. Will get some now 👍

[oldypigeonpopper]

Hello, That is more for sealing Brass Fittings rather than a water proof glue, It will seal but does not set hard so over time water may get through, As my last post you can buy large diameter rubber/plastic seals that will fit in that recess then use a water proof glue, What is the size diameter of the hole from inside the recess ????

Edited December 29, 2024 by oldypigeonpopper

[Westley]

37 minutes ago, oldypigeonpopper said:

Hello, That is more for sealing Brass Fittings rather than a water proof glue, It will seal but does not set hard so over time water may get through, As my last post you can buy large diameter rubber/plastic seals that will fit in that recess then use a water proof glue, What is the size diameter of the hole from inside the recess ????

I was a plumber and gasfitter by trade and have used LS-X for some 20 years. I have used it for a wide variation of things. The fact that it remains flexible is part of its sealing capability. There is often movement of a shower tray during its use, especially if it is of the plastic variation, or is fitted onto a wooden floor. Fernox and Plumbers mait are the best flexible sealants that I have used to date. Of course things are improving all of the time, but sometimes the old things work better.

[oldypigeonpopper]

12 hours ago, Westley said:

I was a plumber and gasfitter by trade and have used LS-X for some 20 years. I have used it for a wide variation of things. The fact that it remains flexible is part of its sealing capability. There is often movement of a shower tray during its use, especially if it is of the plastic variation, or is fitted onto a wooden floor. Fernox and Plumbers mait are the best flexible sealants that I have used to date. Of course things are improving all of the time, but sometimes the old things work better.

Hello, That maybe so but just filling those gaps with LS X sealant which is more suitable as a pressure sealant like plumbers mate , The LS X never sets and using external as a gap sealant it will eventually fail more so with the hot water , my idea to seal the joints and cover with a area up to the outer rim as my last post suggests with a smaller out flow would be 99 % permanent 

[sandspider]

I've ordered the fernox now! But am open to other suggestions...

Hole in the tiles is between 95 and 97mm, and there's about a 25mm drop to the grey plastic insert...

[ditchman]

fill it with cement and then waterproof paint over it

[sandspider]

Not sure it would drain very well if I filled it with cement and painted it! 😀 😆

[old'un]

silicone bathroom sealant.

[JKD]

3 minutes ago, old'un said:

silicone bathroom sealant.

Now where have I seen that mentioned before 🤔 🤭😆

[old'un]

Just now, JKD said:

Now where have I seen that mentioned before 🤔 🤭😆

Makes you wonder why plumbers use it.

[JKD]

3 minutes ago, old'un said:

Makes you wonder why plumbers use it.

Not only plumbers 😉😆