Is shower tanking harmful?

Discussion in 'Plumbers' Talk' started by Mike2389, May 25, 2023.

  1. Mike2389

    Mike2389 New Member

    I live in a rented apartment and there is a leak in the shower as it wasn't tanked when the place was built 15 years ago. Water is getting through the grout now and into the apartment below.

    Landlord had a plumber cover over the top of the tiles with blue tanking slurry, brushed on, as they are busy and can't rip out and replace the whole shower for a few weeks.

    I've been advised to leave it for 24/48hours to make sure it's dried.

    Once dried is this stuff harmful to your skin etc? Is it safe enough to have hot showers with this on top of the tiles?

    I would appreciate any advice on this.

    Sorry I didn't see any brands on the slurry tub, so I don't know the exact kind used.
  2. Bob Rathbone

    Bob Rathbone Screwfix Select

    Like any paint the volatile components will continue to evaporate for a few days after application. The fan in the shower cubicle should prevent any harmful build up of vapour. If it's dry to the touch it probably won't affect your skin unless you are hyper sensitive, shower and don't lean on the walls.
  3. Mike2389

    Mike2389 New Member

    Thank you for the reply, got the fan going, windows open etc. Plan to leave over 48hours to be certain.

    My main concern was hot water reacting with it when in use.
  4. Hausfix

    Hausfix Screwfix Select

    Most tanking slurry I am familiar with has a Portland Cement base. Once the initial reaction has occurred, as in the water has been added and it has cured fully, it has the same health risk as any cement based product such as the tile grout already present.. so I wouldn’t worry too much.
    If you have any concerns, just grab some thin polythene sheet and use duct tape to cover the tiles until the repair is made.

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