How to add a concrete layer before tiling?

[Markcub]

Hi,

I want to pour a thin layer of concrete over existing concrete to raise it up prior to tiling it. How do i go about this.?

[JacobZ]

Hi @Markcub,

Welcome to the Bunnings Workshop community, it is fantastic to have you with us.

The context is fairly important as it will dictate what products can be used and the technique used in that situation, so it would be helpful if you could provide a description and some photos of the area.

Let me know if you need a hand uploading images. I am happy to help if required.

The basic process is to prepare the surface by removing any concrete dust, dirt or grime, coat the surface with a primer such as this Dunlop Primer And Additive, seal up all the edges of the concrete using either formwork or silicone depending on the circumstances, then pour a self-levelling compound such as this Lanko 173 Floor Leveller over the surface. Once cured, this new surface will be nice and level for your tile application.

If there were further details you could add, there might be some slight differences to the products used, so I will assist further if you can provide further details.

Jacob

[Markcub]

Hi,

I am retiling my pool and removing the old pavers i have also dug up some of the concrete so i wanted to add a thin layer to the top to level it out. I may not need to i could just use more tile adhesive.

I also need to know if i can stick waterline lies to the pebble Crete under the coping. If so what adhesive do i use that will dry quick so they dont slide down the wall into the water. 

 

[MitchellMc]

Hi @Markcub,

The advice Jacob has provided above is correct. Primer and then a self-leveller.

As for the Pebblecrete, unfortunately, not much sticks to it due to the resin component. I'm not aware of any primers or adhesives that would let you stick tiles directly to it. It needs to be removed.

Mitchell

[Markcub]

This is the pebble Crete i mentioned, it looks as if it would work. I did not know there was resin added. What if i was to use a drop face tile / paver as per the pic below.?

W

[MitchellMc]

I guess that depends on whether the drop face comes glued already together with the top tile or whether they are two separate pieces @Markcub. If they are two separate pieces, then you'd still need to glue the drop face to the Pebblecrete.

Mitchell

[Markcub]

Yes they are glued together and below the installation instructions

[JacobZ]

Hi @Markcub,

The cantilevered installation with the aluminium angle looks like it would be a good option in your situation.

This would certainly remove the need for any adhesive to be applied to the pebblecrete.

Jacob

[Markcub]

Hi Guys,

So i am going to seal as you directed earlier then pour the leveler on top and then tile on top of that. Do you recommend a good adhesive for pool areas.?

Thanks

Mark.

[JacobZ]

Hi @Markcub,

Davco SMP Evo Tile Adhesive, is perfect for use in pool areas.

Just make sure to read and understand the application instructions, which are available here - Davco SMP EVO.

If you need any assistance interpreting anything, or you have any further questions, please don't hesitate to reach out.

Jacob