Natural Stone Back Sealer (S) - 300 is a high-performance sealer specially formulated for the back surfaces of natural stones. It creates a protective barrier that enhances adhesion, prevents moisture penetration, and minimizes efflorescence or staining. Ideal for use on marble, granite, sandstone, and other natural stone tiles, this sealer ensures long-lasting durability, improves bonding with adhesives, and maintains the structural integrity of stone installations. Easy to apply and quick-drying, it is perfect for both residential and commercial tiling projects, guaranteeing professional-grade results every time.