I have just lifted a 17m2 failed floor, tiles debonded from the floor and all the adhesive came up on the back of the tiles ( NONE ON FLOOR ) the floor had been down for about 15yrs.

The floor has a very thin layer (1mm) of black residue from marley tiles,about 50/50 , black residue/clean screed,

I have cleaned the floor and primed with 2-1 bal sbr, DO I NEED TO USE A SLC/ ACRYBASE OR CAN I JUST USE RAPID SET FLEX,
glazed porc going down 30x30


THANKS IN ADVANCE.

Take it off if you can, A paint stripping heat gun works well apparently, Has the floor actually failed, after 15 years? or was it just easy to get up?

is it in a wet area?

Hollow sounding, and a kitchen floor

Has the top of the screed blown? why is it hollow sounding? Has it been significantly wet? What sort of screed is it?

SCREED FINE , SAND/CEMENT, THE OLD TILES HAD BLOWN, THEY WERE PUT DOWN WITH A 3MM TROWEL

that should go along way to explaining why they have de-bonded,just surprised they have lasted so long!

I have primed this 1mm of bitumen residue with bal sbr 2-1 will this be ok to tile with rapid flex

Benfer adhesives say that the bitumen can be primed with a neat acrylic primer before using Benferflex adhesive.

can debond after a few months if its not been removed or primed or latexed with a latex or acrylic or admix or SPF

Think you covered it there Pete

Would bal acrybase leveller be ok on (bal bond sbr)

Originally Posted by whitebeam

Think you covered it there Pete

Beam i forgot i don't do any of that i use a sealer PCI 303 best thing since sliced bread better than all the rest