Hello From new member needing advice

[Spud 22]

diy tiler in need of advice from day to day professionals. I have tiled walls and floors over the years with good results and no comebacks. I have now hit a minefield of advice from many forums. I am tiling 45ms
Of ceramic tile (150mm x 600mm) on to a concrete floor which was previously tiled with Marley tiles. There is a thin layer of bitumen adhesive remaining. There lies my problem! Many pros have said remove as much as I can, prime with Bal Sbr bond and should be fine?
Many have said do not tile over primed bitumen it must be removed?
The floors are reasonably level and in my opinion do not need SLC. In the past I have always used 5:1 ratio pva and laid ties when still tacky. I have never tiled over adhesive stained concrete and when I searched for advice my mind couldn't cope!My main concern is the chance of asbestos in the tiles/adhesive so scraping, sanding or grinding it off would be hazardous? Any advice will be gratefully accepted.
Spud 22

 

[Time's Ran Out]

5:1 ratio of pva says it all!
Is the job for yourself?

 

[White Room]

The bitumen that's remaining on the floor does contain a small amount of aspestos, I work for a housing trust and we slc to encapsulate the remaining bitumen, the floor is primed with green primer (can't remember name at present) and slc is Bostick and it's expensive from Travis.
Don't use pva is the devils creation but just go with a primer with the slc you purchase, most will use sbr or an acrylic.
The old Marley tiles contain aspestos as well and our lot uses the right people to remove them.

 

[Spud 22]

5:1 ratio of pva says it all!
Is the job for yourself?

Yes job is for me. Have recently read about not using PVA but I took advice from a so called pro and have used it on every job I've done!, now I'm up against conflicting advice hence coming on to this site.

 

[Waluigi]

I’d whack some Prime and Grip on it or the Mapei version

 

[Spud 22]

Hello all, I was hoping for a few more varied options?
Any advice gratefully accepted.

 

[WetSaw]

Apart from different brands of products there aren't other options.

 

[Dumbo]

Are you saying you would prefer not to remove the tiles .

 

[Spud 22]

Are you saying you would prefer not to remove the tiles .

Hello. All Marley tiles have been removed leaving behind a thin film of bitumen adhesive. The floor does not need SLC.
Looking for suitable primer or Slurry coat? Trying to get the most common used with good results by you pros.
Ps I removed tiles and broke them up not knowing they contain asbestos!! Have been told the adhesive residue also contains asbestos so don't want to disturb it anymore.

 

[hmtiling]

As above. Mechanical grip primer which rocatex, Mapei, tilemaster, Ardex and others do or make a slurry coat with sbr and rapid adhesive. Alternatively you could use arditex na but if the floor is good a waste of money