What's the best way to tank a plaster wall

[widler]

I actually thought, although never done it, u can dot and dab cement boards onto walls with tile adhesive ?

In tile adhesive i mean powder

 

[White Room]

[FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK]This from Hardies pdf taken from there website......

CAN I FIX CEMENT BACKERBOARD USING A DOT AND DAB TECHNIQUE?​

[/FONT][/FONT][/FONT][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK]

No. HardieBacker​

[/FONT][/FONT][/FONT]

[FONT=Gotham-Black+ABPGSQ][FONT=Gotham-Black+ABPGSQ][FONT=Gotham-Black+ABPGSQ]® [/FONT][/FONT][/FONT][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK]Cement Backerboard is not suited to thistype of fi xing application. Please view the masonry wallinstallation instructions.[/FONT][/FONT][/FONT]​

 

[RBussey]

Yes sorry it's not advised to dot and dab hardibacker but instead use tile adhesive and fixtures.

this is what hardibacker say about fixing to brick walls



8. 1. Installation on brick walls
8.1.1 Preparing the substrate
Ensure wall is sound, clean and ready to receive HardieBacker®
250 cement board. At minimum, the rear of HardieBacker® 250
cement board and the masonry wall must be wiped down to
remove all dust.
8.1.2. Fixing sheets with tile adhesive, step 1
Bond HardieBacker® 250 cement board to the masonry walling
using tile adhesive. Apply tile adhesive to masonry walls using a
6mm notched trowel. The tile adhesive must fully support HardieBacker
® 250 cement board and the HardieBacker® 250 cement
board is firmly pressed into the tile adhesive.
8.1.3 Fixing sheets with masonry anchors, step 2
Use 9 pcs (3 rows of 3) ø 6mm x 50 mm masonry anchors with
self embedding head. The masonry anchors are immediately
fixed through the board into the masonry walls holding the
sheeting in place. Do not overdrive head of anchor, it must be
flush with face of HardieBacker® 250 cement board.
Note: Do not dot and dab tile adhesive.

altho it says use the 6mm board I think il use the 12mm board just to be sure for strength, is this method of installing the boards sound right?

cheers for the advice

 

[widler]

[FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK]This from Hardies pdf taken from there website......

CAN I FIX CEMENT BACKERBOARD USING A DOT AND DAB TECHNIQUE?​

[/FONT][/FONT][/FONT][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK]

No. HardieBacker​

[/FONT][/FONT][/FONT]

[FONT=Gotham-Black+ABPGSQ][FONT=Gotham-Black+ABPGSQ][FONT=Gotham-Black+ABPGSQ]® [/FONT][/FONT][/FONT][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK][FONT=Gotham-Medium+HLMFIK]Cement Backerboard is not suited to thistype of fi xing application. Please view the masonry wallinstallation instructions.[/FONT][/FONT][/FONT]​

thats all well whitebeam ive read loads on here about 'its fine to fix cement boards to walls with cement adhesive but not dry wall adhesive'


in fact the more i think about it the more daft it seems that they say you can't dot and dab with tile addhesive:annoyed:
if your can dryline a wall(plasterboard) then tile it,why can't you dryline a wall(hardi) and tile it,seems odd really.

 

[White Room]

I just follow the manufacturers instructions but on saying that I did see couple of Hardie boards put up with dry wall adhesive once and were'nt coming off that easy.

 

[widler]

I just follow the manufacturers instructions but on saying that I did see couple of Hardie boards put up with dry wall adhesive once and were'nt coming off that easy.

i know mate,dry wall sticks like the proverbial to a blanket.
im gonna try it the next time im on a job,just stck a couple of bits to a wall with dry wall and addy,and try and rive em off

 

[RBussey]

I have a couple of bags of dry wall, would you guys recommend using that? If not what's a good tile adhesive? Our tiles are of a decent size as well 22" x 12" porcelain tiles, what would be a good adhesive for them?