Hidro SST is a 100% water-based, VOC-free impregnating sealer for natural stone that penetrates the full thickness of the material without forming a surface film. It protects against rising damp and humidity, prevents salt efflorescence and rust, and resists staining and heavy-duty cleaners. Because it penetrates deep, the protection survives later sanding, and it is food-contact certified.
Suitable for marble, granite, limestone, sandstone, slate, basaltina, quartzite, porphyry, travertine, and marble-cement and marble-resin agglomerates, indoors and outdoors.
How to use
On a clean, dry surface, apply an even layer with a brush, roller, or cloth. After 5 to 10 minutes, redistribute the residue, then remove it with a white pad or damp cloth. Apply a second coat on highly absorbent surfaces. For pre-installation treatment, coat the top and edges, treat the underside after 1 to 2 hours, and wait 24 hours before laying. Protect the surface from water for about 24 hours.
Coverage: 10 to 15 sq.m per litre, ready to use
Drying: about 24 hours, protect from moisture during this time
Form: clear water-based liquid, pH 11, VOC-free
Frequently asked questions
What is Hidro SST?
It is a 100% water-based, VOC-free impregnating sealer for natural stone that penetrates the full thickness of the material without forming a surface film.
Is Hidro SST safe for food contact?
Yes, it is food-contact certified.
Does Hidro SST protection survive sanding?
Yes, because it penetrates deep, the protection survives later sanding.
