StoneSeal Breathable Concrete Sealer

Silane-based penetrating sealer for concrete, limestone, sandstone, and unglazed tile. Forms a hydrophobic barrier inside the capillaries without filming on the surface, so the stone still looks and breathes like stone. Rejects salt spray and acid rain, resists efflorescence. Coverage 40-60 m² per 5 L can depending on porosity. Apply by low-pressure sprayer or roller, two coats wet-on-wet, no rinsing. Safe on decorative concrete.