PAS High Penetrating Crystallizing Sealer is a water-based, odorless, non-toxic, non-flammable, highly penetrating, high-hardness crystal-reaction penetration primer. Product features: 1. Organic and inorganic hybrid materials, the formed crystals will not age. 2. Excellent penetration, film formation, and water resistance. 3. Improve the base material hardness, density, resistance to acid and alkali and chloride, and improve the base material wear resistance. 4. It is a new environmentally friendly material that is non-toxic, odorless, non-flammable, does not contain formaldehyde, and TVOC is far below the national standard and does not harm human skin. 5. The construction is simple and efficient, and it can be sprayed or brushed directly. 6. It has the functions of preventing algae and bacteria from growing and acid substances from invading.