Transparent Waterproof Coating

Transparent Waterproof Coating

Sapion Transparent Waterproof Coating is a clear, water-based protective coating that provides long-lasting waterproofing for new and old walls without damaging the original surface.

• Transparent and elastic coating
• Strong adhesion and crack resistance
• UV, heat, and aging resistance
• Eco-friendly and easy to apply

Technical Data

AppearanceSemi-transparent liquid
Viscosity15,000–22,000 CPS (NDJ-4, 4#/12rpm/25℃)
Solid Content (%)31
pH7.0–9.0
Storage Temperature5℃–35℃


Key Features

  • Can be directly applied on existing walls with leakage problems — no need to remove the old finish.
  • Non-tacky, dust-resistant, and non-yellowing after curing; excellent durability.
  • Resistant to heat, UV rays, acid, alkali, and aging.
  • Forms an elastic, strong-adhering film that tolerates substrate deformation and cracking.
  • Water-based formulation with no solvent pollution — environmentally friendly and safe.


Application Method

  1. Surface Cleaning
    Clean the wall surface thoroughly with detergent, brush, or cloth to remove dust and stains.
  2. Base Treatment
    Ensure the substrate is clean, flat, firm, and dry. Level uneven areas and seal cracks or leaks before coating.
  3. Coating Application
    Apply evenly over the wall and between tile joints.
  4. Layering
    Apply 2–3 coats. Each coat should dry to the touch before applying the next, with alternating directions (vertical and horizontal).


Recommended Uses

  • Waterproof repair for exterior walls of buildings.
  • Waterproofing at joints between decorative materials.
  • Waterproof, moisture-proof, and mildew-proof coating for interior and exterior walls.
  • Protective topcoat for color steel roofing systems.
  • Concrete structures requiring waterproof and anti-carbonation protection.

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