STONETECH Heavy Duty Sealer is a water-based penetrating sealer that provides advanced stain protection and antimicrobial product protection while preserving the natural look of the surface.
Features & Benefits
- Formulated without intentionally added PFAS including PFOA or PFOS
- Offers advanced stain protection against oil and water-based stains
- Low VOC, water-based formula – More comfortable indoor application with minimal odor
- Built with antimicrobial technology – the sealer continuously inhibits the growth of bacteria, mold, and mildew on the sealed surface
- Breathable, penetrating, natural look sealer preserves the original look of the surface
- For interior and exterior use
- Professional grade for quality protection every time
It is designed to help protect against oil- and water-based stains on natural stone, tile, masonry, and grout in interior and exterior applications. Ideal for use as a granite sealer, tile sealer, and more.
Formulated with built-in antimicrobial technology, STONETECH Heavy Duty Sealer provides product protection against the growth of stain- and odor-causing bacteria, mold, and mildew on the treated surface. Designed without intentionally added PFAS*, this water-based, low-VOC formula offers professional-grade performance with minimal odor and improved indoor comfort. Backed by a 25-year product satisfaction guarantee.
US
- ST309-1202: 2oz (59ML) Sample Bottle – 12 / case, NOT For Resale
- ST309-1216: Pint /16oz (473ML) Bottle – 12 / case
- ST309-0624: 24oz (709ML) Spray Bottle – 6 / case
- ST309-0632: Quart /32oz (946ML) Bottle – 6 / case
- ST309-0401: Gallon /128oz (3.8L) Bottle – 4 / case
- ST309-0105: 5 Gallon (18.9L) Bottle – 1 unit








