I've a large fireplace made from polished oolitic limestone banded with
black slate. I need to repair some cracks in both the limestone and the
slate where decorative panels have borne a load as a result of the floor
shifting and the weight transferring from the structural pillars. All the
cracks are clean and mate perfectly.

Any suggestions as to the appropriate adhesive?

--
PeterMcC
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PeterMcC wrote:
I've a large fireplace made from polished oolitic limestone banded with
black slate. I need to repair some cracks in both the limestone and the
slate where decorative panels have borne a load as a result of the floor
shifting and the weight transferring from the structural pillars. All the
cracks are clean and mate perfectly.

Any suggestions as to the appropriate adhesive?


Something epoxy like. Milliput is reasonable. And available in several
colours.

Car body filler is excellent, but available in
in only one.!

Ideally I would use a polyester resin with bits of the original material
ground up and used as a gap filler.

If the parts fit perfectly, use a decent epoxy, mix throughly,apply, fit
parts and clamp, and wipe surplus away with rag soaked in organic
solvent - acetone or the like. It should repair almost invisibly.