Bolted wibbled:

On 29 June, 20:19, Tim S wrote:
Question:

[etc]

Why not just give F Ball/Ardex/Mapei etc a call and ask their tech
advice people which product they recommend and stand behind for this
application*. They will all have one. This is not an unusual issue -
you just need the right product which will adhere to the bitumen
adhesive. . If the SLC is coming up OK, remove that and go over the
adhesive again with the right product which will bond to it.

That's a very good suggestion - I'll give them (F Ball) a call. After using
Stopgap 300, I'm sold on their stuff.


[*Do not go into B&Q or Wickes and try and find advice in a leaflet or
walk into any old tile shop and ask a shop assistant].

No indeed...

Cheers

Tim