Sealants or joint stabilisers may be beneficial to facilitate high incidences of jet washing such as ‘car wash down’ areas or steep drives where water scour may remove sand between joints. Sealants and joint stabilisers may also minimise weed growth through the joints.
One of the main advantages of clay is it does not need to be sealed and its ability to remain colour fast, the natural hues remaining throughout the life of the product, therefore the surface does not need sealing for colour retention purposes.