Applying Bal WP1 Tanking to Knauf Aquapanel

[Neil_S]

I've read a few threads about the WP1 Shower Tanking kit and I want to use it when I refit my bathroom next month.

I intend on using Knauf Aquapanel, tank and then apply tiles.

I have been reading the Bal data sheet...

http://194.223.92.131/pdf/Technical...hnical Data Sheets/Bal_WP1_Tanking_System.pdf

And this suggests that for tile backer board you need to

"Apply a skim coat of a BAL cement-based adhesive modified with BAL-ADMIX AD1, prior to tanking. For wall areas BAL-GRIP may be used. Allow adhesive to dry."

I am slightly disappointed as I thought the kit would contain everything I required.

I guess I should follow what the data sheet tells me, I am interested to understand if anybody has just used the primer and WP1 on Aquapanel without doing the step in the data sheet?

 

[Belle427]

i just applied a generous amount of primer from the kit,i will let you know when the tiles fall off!

 

[Bon]

This is a good point Neil.

I will be tanking my shower area soon and had assumed that the kit would contain everything required too.

Could anyone offer any suggestions as to why tile-backer boards would or could need the extra prep? My guess would be due to the porosity of the surface, but surely that's better than plasterboard (if not why shell out on Aquapanel in the first place??).

Looking on the BAL website, it says the WP1 kit can be used on brick, concrete, cement : sand rendering, plaster, plasterboard, cement : sand screeds, wooden floors, and ceramic tiles.

Surely tile-backer board doesn't contain anything not on the above list??