In article , RB wrote:

If this means silicone, it certainly is not a material that I would
reccommend. There is almost nothing that will stick to silicone. The
self leveling concrete will make strong bonds to old concrete.

Dick


What is a silicon bonding agent?

RB

Chipper Wood wrote:
First enlarge the hole so that all parts of it are at least 1 inch
deep.
Vacuum out the hole if possible etch the old concrete with diluted
muriatic
acid. Rinse thoroughly and apply a liquid silicon bonding agent before
filling the hole with new cement.