Paper Protective Sealer - Stain Resistant - Type CH228

Paper Protective Sealer - Stain Resistant - Type CH228

GRASi CH228

GRASi® CH228 is a paper waterproofing protector, specially developed to provide paper with waterproof, oil-proof, and stain-resistant properties.

Its nano-scale active ingredients can deeply penetrate into the substrate and bind with it, forming a permeable protective layer on the surface. With ultra-low surface tension, it has excellent waterproof and stain-resistant effects.

Features

Stronger chemical bonding, providing long-lasting protection, good durability, and excellent stability.
Reduces curling and wrinkling of paper products caused by moisture.
Prevents moisture, keeping the water content within a relatively small range and reducing paper curling.
Prevents water vapor, moisture, and liquid water from penetrating the substrate.
Fast curing, can be quickly put into use and dries rapidly.
Prevents paper from curling, wrinkling, molding, and staining.
Good chemical resistance, such as acid resistance, alkali resistance, and good weather resistance.
Frost-resistant, freeze-thaw resistant, and can withstand high and low temperatures (-50℃ to 200℃).
Environmentally friendly.

Applications&Properties

Applications

Suitable for moisture and stain protection of various types of paper, including printing paper, cultural, art and lifestyle paper, packaging paper, technical paper, cardboard, and specialty paper.

Properties

Appearance	Colorless
Odor	Slight odor
Specific Gravity	0.78±0.01 g/l
PH Value	6-7

Application Instruction

GRASi® CH228 is a ready-to-use penetrating waterproofing agent.

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

Performance

Surface dry time	4 hours
Curing time	4-48 hours
Extend weather resistance lifespan	3-5 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.

Product Special Effects

Oil-proof	Stain-resistant	Hydrophobic	Anti-fog	Chloride ion resistant	Acid resistant	Anti-alkali return	Anti-rust return
Freeze-thaw resistant	UV resistant	High&low temperature resistant	Color enhancement	Sand stabilization	Smooth	Anti-static	Degreasing and cleaning