How to re-seal the join on stone benchtop?

Question

The join/seam between two sections of our stone benchtop is no longer sealed, and the cupboard underneath is starting to get damp and smelly. What product should I use to re-seal this join? I 'm guessing silicon is not the right material. If not, what is?

EricL · Answer

Hello @ianwright

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about sealing the seam on your stone benchtop.

The joint sealer used on a stone benchtop is a special product that stone masons use to produce a seal that matches the finish of the benchtop. I'm sorry but the store currently does not have this type of product. I propose engaging the services of a stone repair/restoration specialist. They will have the knowledge and materials to properly repair your stone benchtop.

However, if you are not yet prepared to engage the stone repair specialist, I suggest using

https://www.bunnings.com.au/selleys-300g-clear-wet-area-waterproof-silicone-sealant_p1230999

to cover the joint of the benchtop. I suggest having a look at this guide - How To Silicone Seal A Bath, the techniques used are applicable to your repair project. Please make sure to use a

https://www.bunnings.com.au/pro-renovator-38mm-plastic-scraper-38mm_p1660091

to prevent scratching the surface of your stone benchtop. Please note that this is a temporary repair and that at some point a proper stone top repair must be applied.

Please remember to wear personal protection such as gloves, goggles and a mask.

If you need further assistance, please let us know.

Eric