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Asphalt Roof Protective Sealer - Self Cleaning & Stain Resistant - Type WH6965

GRASi WH6965

GRASi® WH6965 is a self-cleaning and stain-resistant protective agent for asphalt shingles, specifically developed to provide waterproofing, self-cleaning, stain resistance, and frost protection for asphalt shingles and other building materials.

Its nano-scale active ingredients can penetrate deeply into the substrate and bond with it, forming a penetrating protective layer on the surface. With its ultra-low surface tension, it offers excellent waterproofing and resistance to frost impact.

Features

  • Stronger chemical bonding, providing long-lasting protection, good durability, and stability, significantly extending the service life of building materials.
  • Good frost resistance and impact resistance for asphalt shingle substrates.
  • Prevents water vapor, moisture, and liquid water from penetrating the substrate.
  • One-way breathability, can repair tiny cracks (0.2 mm - 0.4 mm).
  • Can be used quickly and dries rapidly.
  • Excellent chemical resistance, resistant to acids, alkalis, and oils; excellent weathering and UV resistance.
  • Good resistance to chloride ions.
  • Frost-resistant, freeze-thaw durable, excellent high and low temperature resistance (-50℃ - 200℃).
  • Does not alter the original appearance of the substrate.
  • Environmentally friendly.

Applications&Properties

Applications

Suitable for asphalt shingles and others that require waterproofing, self-cleaning, and frost resistance.

Properties

Appearance

Colorless and transparent liquid

Odor

Slight odor

Specific Gravity

0.79±0.01 g/l

PH Value

6-7

WH6965-1.jpg

Application Instruction

GRASi® WH6965 is a ready-to-use penetrating waterproofing agent.

  • The material surface must be clean and dry.
  • Suitable for spraying, brushing, soaking, or rolling. Apply under natural ventilation conditions.
  • Use appropriate low pressure for spraying, at a distance of 10-15 cm.
  • Coat the material onto the substrate until fully saturated.
  • Do not place treated materials in damp or rainy areas; allow to air dry naturally.
  • Once fully cured, it will achieve excellent water-repellent effects.
  • The application temperature should be between 2-45℃ (35.6-113°F).
  • Maximum coverage is 4-5 square meters per liter, depending on the density of the substrate.

Performance

WH6965-1.jpg

Surface dry time 4 hours
Curing time 24-72 hours
DOP on concrete 2-3 mm
Extend weather resistance lifespan 8-10 years

  • Note: Laboratory curing conditions, 25°C.
  • Reminder: When the product is used for major engineering projects, it is recommended to conduct testing in advance.

Storage

  • Store sealed in a cool, dry place and use within 24 months.
  • Keep away from children.
  • Keep away from fire and heat sources.

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