tiling on black bitumen

[Gazzer]

keraquick is a super adhesive but not to be used on bitumen, abrasive machine required to clean off all bitumen, then primer g. if floor not level use ultraplan renovation screed before tiling with keraquick.

You like Mapei then ?

 

[Qwerty]

keraquick is a super adhesive but not to be used on bitumen, abrasive machine required to clean off all bitumen, then primer g. if floor not level use ultraplan renovation screed before tiling with keraquick.

Why do you say this tilerbarry? Keraquick is an ideal adhesive to use in a slurry coat with SBR. The discussion has been centred around slurry coats, not tiling straight onto the bitumen. I would advise you save your money and efforts in creating a smelly messy bitumen free floor and stick with the slurry coat or Eco prim


To stevie12345....... mix a slurry of keraquick and SBR. Just use SBR instead of water to a runny mix and roller on

 

[tilerbarry]

I use the Mapei technical line a lot for problems like this and they advise remove all bitumen.

 

[Stef]

I use the Mapei technical line a lot for problems like this and they advise remove all bitumen.

I used Mapei technical a few weeks ago & they advised me that & I quote;
"You don't have to worry about 75% rh for a Gyvlon screed if your tiling onto it"
"The 75% rh is only for other floor coverings"

I would take their advice with a pinch of salt.

 

[DHTiling]

I use the Mapei technical line a lot for problems like this and they advise remove all bitumen.

Flooring grade asphalt/bitumen can be tiled on ..

 

[MB TILING]

You should mix the flexible adhesive directly into the sbr. I usually pour up to one inch in the bottom of the bucket (not too much) you can always mix more. Then add the flexible adhesive powder to a consitancy that you can brush around the floor easily. I would also suggest that as soon as the slurry is mixed pour it all out streight away, if you don't do this the sand in the powder will settle to the bottom of the bucket & you will end up just pouring out sbr! If you mix it too thin you can always throw dry powder on to the floor just brush it in until the powder is mixed. Cover the floor evenly.
Hope this helps.

 

[destroyer2813]

I have the same problem just pulled up a load of floor tiles to find they where stuck to old parquet flooring and left a bitumen coat underneath, the general consensus is a slurry coat of adhesive to go over the top of it

 

[Sean SML Tiling]

Any chance someone could pist some pics of bitumen as ive never come across anything other than concrete. Lucky me.

 

[Qwerty]

Here it is!






And after all old surfaces removed and slurry coat down

 

[Billy Hunt]

Weber do a primer specifically for this,can't remember the name but have used it without any issues.

 

[Sean SML Tiling]

Here it is!

View attachment 54151

View attachment 54152


And after all old surfaces removed and slurry coat down

View attachment 54153

View attachment 54154

Thanks. I think my sister has got that in her house under old vinly (council house) would this be more common in old properties?
So what's the reason for a slurry coat? Is it to stop reaction between the bitumen and the adhesive?

 

[Qwerty]

Yes, more common in properties 1950's-1980's and yes, to not only stop any potential reaction but to ensure a good bond to adhesive.

 

[Sean SML Tiling]

:thumbup: cheers buddy