Hardie Backer Board Adhesive

[cgadmin23]

Hi

I am using Mapei Keraquick flexible adhesive to apply tiles in my bathroom.

Prior to this I am going to fix hardie backer board to a solid wall. Can I use the same adhesive to bond the backer board to the brick (together with permanent fixings)?

Thanks

Chris

[brian c]

hi,yes Chris that adhesive is fine to use for the cement boards m8.

[hillhead]

No probs there, keraquick on the walls?? you must need it done quick,lol.
I use keraflex on the walls mostly,keeps fresh in tub for hours,less mixing and more time to cut etc.

[Dave]

you want to use a rapid setting anyway...just mix enough to do a board at a time...

[user123]

Ah - useful! Would that combination of hardibacker board and keraquick be suitable for outdoor fixings? For a mosaic fixed onto a brick garden wall?

[brian c]

never heard of it being used outside(backer board)would check spec first.

[brian c]

Another question...would backerboard be ok for steps also?i know it would be expensive but its an alternative to sand/cement and waiting for it to dry.

[david campbell]

can't see it being a problem brian,but intead of using normal cement why don't you use rapid set

[Dave]

Just had a thought...( dont laff).....Maybe hardi might not like the freeze thaw factor..mmmmm worth thinking about mrs G...

[brian c]

i only had normal cement this morning m8,but i get your drift .Normally i would use rapid setting cement.

[brian c]

Dave that was my thought....honest but i thought i would be laughed at.

[Dave]

SEE!! You do listen.........hardi is water resistant Yes..?...but if it's wet and it freezes then what.....

I think an email is needed to hardi....

[brian c]

I THINK IT MIGHT CRACK.Iknow hardi samples are a piece of board in a plastic encase filled with water..to prove its water proof.

[user123]

Hmm yes, thanks guys, and I know the feeling Brian I understood wediboard would be ok, but would be nice to have a less pricey option...

[Dave]

I have emailed them...G..

[user123]

aaahhh...

[R Montgomery]

Hi M G,
Wouldn't render be cheaper and better?

[doug boardley]

Ah - useful! Would that combination of hardibacker board and keraquick be suitable for outdoor fixings? For a mosaic fixed onto a brick garden wall?

good question MG and not one that I could answer

[doug boardley]

i only had normal cement this morning m8,but i get your drift .Normally i would use rapid setting cement.

when you guys mention rapid setting cement, do you refer to something like postcrete or do you add a frost proofer rapid hardener type additive, or just a cement powder that's rapid hardening?

[brian c]

It comes in a yellow bag doug...blue circle..sets in 3 hrs.Buy it from B and SPEW.

[user123]

Hi M G,
Wouldn't render be cheaper and better?

I don't know Rob, finding these things out still...... you did mean hardibacker or wediboard fixed on to the wall with render, didn't you?

[R Montgomery]

I don't know Rob, finding these things out still...... you did mean hardibacker or wediboard fixed on to the wall with render, didn't you?

Nope,in place of.

[user123]

Nope,in place of.

Ah, was afraid you might... that would only be any good if I was to create and install a mosaic there and then, being dependent on the weather etc..I'm very keen to continue creating things that can be delivered thoughout the country, even all finished and grouted, to either hung up like a picture to be taken down when desired, perhaps to move to a new place with the owner or if they want to enjoy it indoors in the winter.

However, I could do with knowing the best adhesive to use with a water+ frostproof board in case it wants to be permanetly installed, especially if I'm not there to do it and dependent on another tiler or tradesman waiting for instructions. Got a serious enquiry for a small commission in the North of Scotland today, YESS!! it's starting ....

[Dave]

Hi Gisela...( had email back)

Sorry but James hardi uk say hardi backer is not suitable for outside use and no warranty will stand if it is used that way...

hope that helps...

[user123]

Thanks for that Dave, one mistake avoided is as good as experience gained, cheers

[Mike Berry]

Hi M-girl, l