Restoring an old backing coat

I removed tiles from a bathroom and much of the skim plaster came away with the tiles. I then removed the entire skim coat. The exposed backing coat is very uneven. Some areas show the bricks.
I am going to use a bonding coat to flatten the backing plaster. After filling the pot holes and covering the bricks, I will have to put a thin bonding coat on top of the old bonding coat.

Should the thin bonding coat have a consistency similar to the skim coat as you described in your video? (small peaks in the bucket).

I assume the deeper repairs will require a thicker consistency.
Thank you

Yes exactly as you say.

Do be careful though that you prepare the surface - as old Bonding Coat can be very porous so you may need to control the suction by damping the wall down with plenty of water or using PVA


Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Backing Coat Questions & Answers.