Failed Adhesive?

[DTHulse]

Gulfstone state that the adhesive used to fix their stone should be 2 part latex based though I dont know if your use of water in the mix caused this problem. Maybe the slc covering was dusty when you fixed the tiles, maybe the ufh was switched on too soon and too high initially.

Hi, thanks for those ideas but the floor was cleaned before applying adhesive and that was spread thinly on the floor with serated blade to "bind" it to the levelled floor and also then on the tile. Makers of Ultra say only 2/3 days and you can use the ufh as normal and we waited longer than than. Something though has caused the adhesive not to bond to the levelled suface or for that bond to break very cleanly with no adhesive on the floor but all on the tile. Does anyone know who can investigate this type of failure? As mentioned, primer was not used on the levelled floor before fixing the tiles? Should that have been used?

 

[swanman]

Pictures would be good to get a better understanding of the situation

 

[swanman]

Did you back butter the tiles before layinf them

 

[Discount Tile Supplies]

Get Ultra to have a look for you and ask the tile shop to do the same.

 

[Diamond Pool Finishers]

Get Ultra to have a look for you and ask the tile shop to do the same.

same as ask ultra if they would send someone out from there tech -dept to advise on why there adhesive failed in this instance

 

[Diamond Pool Finishers]

Dusty sub straight ,Adhesive mix wrong, Adhesive skinned, Heating on, or used, did you apply the Adhesive to the tile and then the tile to the floor,or did you comb the floor with adhesive then set the tile, did you back skim the tile you were fixing?

 

[DTHulse]

Dusty sub straight ,Adhesive mix wrong, Adhesive skinned, Heating on, or used, did you apply the Adhesive to the tile and then the tile to the floor,or did you comb the floor with adhesive then set the tile, did you back skim the tile you were fixing?

Hi everyone, thanks for all the replies and to catch up on the last few - floor cleaned section by section as tiles laid; combed adhesive to the floor tile by tile and also combed adhesive on the tile (all Ultra recommended thicknesses); heating not even connected until over a week after tiles had been laid: pictures would only show the levelled floor with no adhesive and all adhesive on the back of the tile;

Have asked Instarmac (makers of Ultra) for tech help and sent then tile section for them to look at the cement that is affixed to it and check the mixe, thickness etc.; their initial reaction is that primer should have been applied to the levelled floor and that's the problem.

Any more ideas?

 

[Perry]

what levelling compound and was the heating turned on slowly increased day by day

 

[DTHulse]

what levelling compound and was the heating turned on slowly increased day by day

Hi, the levelling compound was Granfix Solo18 (as recommended for ufh) and left 4 days to dry before fixing tiles. Cleaned section by section as tiles laid as decribed earlier post. Heating not even connected for week after tiles laid and checked with Instarmac (makers of Ultra SP adhesive) who said OK to use normally. As was summer time, only used very low for short period in morning but tiles started to lift some weeks later.

 

[Discount Tile Supplies]

i would get a site visit from Ultra and Granfix. Let them battle out whats the problem. Ask the shop you bought products from to ask suppliers. Dont go back to shop laying down the law down as it will get their back up. They will help you if you ask them.

 

[Dan]

Ultra Tile have a forum Member Support Account: View Profile: Ultra Tile - Tiling Forum | tilersforums.com - though you will probably need to call them etc.

Take some pictures of the adhesive on the back of the tile for us, and also the SLC that you can see when you've lifted the tile. That might give us a clue.

 

[DTHulse]

Ultra Tile have a forum Member Support Account: View Profile: Ultra Tile - Tiling Forum | tilersforums.com - though you will probably need to call them etc.

Take some pictures of the adhesive on the back of the tile for us, and also the SLC that you can see when you've lifted the tile. That might give us a clue.

OK, will do but not until tomorrow as am not at home today,. Hope to post the pictures tomorrow. Thanks everyone for their input

 

[Discount Tile Supplies]

Could the tiles have been still damp before they were fixed? Sparkly tiles can be really awkward tiles to lay at times. Ive had it where they have come off walls and the adhesive is still stuck to the tile,solid, even with Bal flex (on a shop front). I thought it was down to the dampness in the tile that then draws the moisture from adhesive then it fails to adhere to substrate and decouples. I might be peeing in the wind with my theory, but its a possibility.They did not come off for weeks then one by one they came off!
The tiles are cut with a wet saw on production then polished when wet.

 

[Perry]

Hi, the levelling compound was Granfix Solo18 (as recommended for ufh) and left 4 days to dry before fixing tiles. Cleaned section by section as tiles laid as decribed earlier post. Heating not even connected for week after tiles laid and checked with Instarmac (makers of Ultra SP adhesive) who said OK to use normally. As was summer time, only used very low for short period in morning but tiles started to lift some weeks later.

was the heating turned on slowly increased day by day

 

[DTHulse]

Hi all, to answer previos question, heating not turned on for a week and then only on low increasing gardually over a month or so. Attached two photos showing the levelled floor where some tiles have been removed and no trace of adhesive on the floor and all on the back of the tiles that can be seen in the photos. The levelled floor does have cracks in it as can be seen. The levelled floor and the adhesive have totally parted company. The products used are both suitable for ufh. Any more ideas as to cause would be really appreciated.