I have these black / grey either slate or granite slabs laid in the garden by previous owner.
They are 80x20 cm not sure what the material is slate or granite but I'm pretty certain it's non porous.
They have come loose from the wall as you can see.
How can I attach them?
I have looked up and believe I need a Slurry primer or a SBR primer.
You can see where the last owner has spot bonded them which has been partly successful but the slab has not bonded to the mortar at all.
Thanks for any help.
Granny
They are 80x20 cm not sure what the material is slate or granite but I'm pretty certain it's non porous.
They have come loose from the wall as you can see.
How can I attach them?
I have looked up and believe I need a Slurry primer or a SBR primer.
You can see where the last owner has spot bonded them which has been partly successful but the slab has not bonded to the mortar at all.
Thanks for any help.
Granny
