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[RICKY FAIRES]

I WANT TO DOT & DAB AN OLD EXTERNAL BRICK FACE WALL THAT IS NOW AN INTERNAL BETWEEN HOUSES DO I NEED TO COVER WITH PVA?
THE EXTERNAL WALL IS NOW A PARTY WALL BETWEEN TWO HOUSES AS HAVE PUT ANOTHER HOUSE ON THE SIDE. I WANT TO DOT AND DAB THIS WALL HOWEVER HAVE NOT DONE THIS TO EXTERNAL BRICK BEFORE DO I NEED TO COVER WITH PVA OR SIMILAR BEFORE DABBING?

[stoneyboy]

RICKY FAIRES,
Generally no need for PVA - adjust the workability of the adhesive to suit the porosity of the wall.
end

[ricky68]

is the wall painted ,if so you will need to PVA first.if they are dusty bricks ie stocks or soft reds PVA.