I have a few bags of Mapeker to use up and was wondering if it would be suitable to use for fixing down warmup insulation boards, and then again on top of the warmup ufh (loose wire) for fixing down ceramic floor tiles.

Also, what size trowel is best for the boards???

Substrate is concrete screed by the way

Yes..it is fine..

No you need a SPF for this.

Mapeker is flexible neale...and suitable for UFH.

Originally Posted by Dave

Yes..it is fine..

Originally Posted by Sir Ramic

No you need a SPF for this.

Im now confused..........replies from 2 very experienced tilers....... yay or nay?

I also have 6 bags of keraflex maxi, but would like to use the mapeker if possible.

Nothing in my Mapei books about it being suitable ??

im sure mapeker spec has now changed to flexi and suitable for ufh

Mapeker is a C2 adhesive and fine for what you need....and also suitable for ply overlay of 15mm and above..

Keep up with the spec neale...

Originally Posted by Sir Ramic

Nothing in my Mapei books about it being suitable ??

Check the middle pages neale...suitable for UFH..

Originally Posted by Dave

Mapeker is a C2 adhesive and fine for what you need....and also suitable for ply overlay of 15mm and above..

Keep up with the spec neale...

i think Mapei need to keep up with there brochures

yes Dave is right (as usual) ( although i still wouldnt use it myself)
It seems they have done recent tests and have found that and i quote "Basically we've been under selling the product!!"
they also state that the UFH should " be encapsulated in a SLC"

It's always been a suitable product neale, just they haven't really pushed it as that...the new bags..have mapeker flex on them..but still the same adhesive as before..

Originally Posted by Dave

Check the middle pages neale...suitable for UFH..

I was looking in the price list book and the details we were given on the training day, no mention of it being suitable.

Anyway Blocko, i hope you are reassured now and Mapeker is suitable

My little black book..says it is suitable for UFH..? and my mapei rep says it is flexible enough for timber floors as well...( 15mm overlay)..

Mapeker is a great adhesive IMHO..and available in white as well.

Yes Dave i have the black book too but if you read page 11 it makes no mention of saying its suitable. Obviously this need re editing on the next print. only when you read the adhesive selector does it say that it is suitable.

I agree mate..new version of the book should be printed......Soz if i sounded like i was belittling you neale.....mapeker is a well underestimated adhesive.

No worries Dave, i dont use Mapeker myself that much but i know its a great adhesive as i tiled 35m2 for the local mapei reps uncle a while back. No problems with it at all but i still wouldnt choose to use it for UFH just my opinion.

Saying that i may start using it more for general tiling now

Thanks guys.... I have it in white and will be covering the wires in Latexplan. Thanks for all of your help

Just one more thing though ! You say its to be used up ? Not out of date is it.
Someone gave me some adhesive to use a few months ago and it was over 2 years old

aint any good for brick slips lol

Originally Posted by pjc

aint any good for brick slips lol

Neither was the fixer

lol Neale seen more body in jelly

Originally Posted by pjc

lol Neale seen more body in jelly

Aww Pete dont run yourself down, you aint that thin

Originally Posted by Sir Ramic

Aww Pete dont run yourself down, you aint that thin

not nowdays Neale put on 2 stone since i have been doing nowt

Originally Posted by Sir Ramic

Just one more thing though ! You say its to be used up ? Not out of date is it.
Someone gave me some adhesive to use a few months ago and it was over 2 years old

12 months is up in Feb 2010, but also need the space too! What size trowel would be best for the insulation boards do you all think?

Originally Posted by pjc

not nowdays Neale put on 2 stone since i have been doing nowt

Thats all the loose change in your pockets Pete