How to repair cracks in sandstone pavers?

[morrison]

Hi - I would appreciate any advice on what materials to use so to fill cracks in the sandstone pavers. Best, Michael 

 

 

[CSParnell]

Hey @morrison that is a pretty substantial crack and you will mostly find its because the concrete has cracked due to movement which could be from not enough expansion joints or the tiles have been tiled over an expansion joint. Or an incorrect tile glue used without enough rubber in it.

As far as filling the tiles the only products that would be strong enough would be a 2 part epoxy but I'm not sure it would last without cracking again. Another option a coloured silicon which will flex. Either won't look fantastic but it may save you replacing tiles which is your 3rd option and if you do that make sure you use a rubber base glue.

@MitchellMc wrote a brief article on this subject found here he also may know of some products best suited.

https://www.workshop.bunnings.com.au/t5/Best-Advice/How-can-you-fix-a-cracked-tile/ta-p/85544

[MitchellMc]

Welcome to the Bunnings Workshop community Michael (@morrison). It's brilliant to have you join us, and many thanks for your question about repairing a crack in pavers.

It's great to see @CSParnell has already offered a helpful suggestion. I'd agree that something flexible is your best option. We have Mortafil and Selley's No More Gaps Brick and Mortar Filler. Those ranges might have some close colours, but you'll still see the repair. It will likely look better than the crack, though.

You could fill the crack with mortar coloured with oxide, but this isn't flexible, and if there's continued movement, it will eventually crack again. You would have a better chance of closely matching the colour with oxides.

Please let us know if you have further questions.

Mitchell