Sandstone windowsills ,old house, the butted joints eventually open up what is the best compounds to fill in these gaps. I have large window on front with 3 butted joints opened up, and 3 smaller ones at rear same fitted in two pieces instead of one. I think the house was made from scavenge bits left over from the other parts of this estate. Tried cement but eventually that falls out due to not adhering to sandstone. Many thanks in advance
Hi greengrass I'm assuming you are not looking to end up with a sandstone finish. You could try gorilla glue but bear in mind it expands, trim off the excess and top with flexible decorators caulk. Regards S
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