HMK® S731 is a ready to use silane based impregnator that reduces the penetration of water and dirt into rough or honed natural stone surfaces (soft and hard stones), concrete block and unglazed bricks. HMK® S731 is vapour permeable and suitable for internal and external use. The color and structure of the surface is affected only minimally.
Maintenance before grouting: Before starting to insert, impregnate the surface of the Craquelé tiles with the HMK S731 Silane impregnate. This is to prevent dye from the joint material in the crack cracks of the Craquelé tiles, moisture and water.
Please note! Read the instructions on this product carefully before use.