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High chroma and excellent color stability under UV exposure and alkaline cementitious environments.
Optimized rheology for seamless dispersion in water-based waterproof coatings without sedimentation or flocculation.
Low VOC formulation compliant with GB/T 23986–2009 and EU EN 71-3 safety standards.
Enhanced compatibility with common polymer binders including acrylic, styrene-butadiene, and polyurethane dispersions.
Batch-to-batch consistency ensured through strict pigment particle size control (D50 < 0.8 μm).
Cementitious waterproof membranes for bathroom and balcony surfaces.
Acrylic elastomeric waterproof coatings used on concrete roofs and terraces.
Two-component polyurethane waterproof systems for basement and foundation applications.
Tile adhesive and grout colorants where waterproof integrity must be preserved.
Decorative waterproof render systems for exterior façades requiring long-term color retention.
| Chemical Type | Aqueous pigment dispersion with non-ionic surfactant stabilization |
| Product Form | Viscous liquid paste, ready-to-use |
| Appearance | Homogeneous, glossy paste; free of lumps and phase separation |
| pH Value (25°C) | 7.5 – 8.5 |
| Specific Gravity (25°C) | 1.15 – 1.25 g/cm³ |
| Viscosity (Brookfield RVT, #3 spindle, 20 rpm) | 8,000 – 12,000 cP |
| Storage Stability | 12 months at 5–35°C in sealed original container |
| Primary Applications | Waterproof coating tinting for residential construction |
Q1: What types of domestic waterproof coatings is this color paste compatible with?
A: This color paste is formulated for use in water-based acrylic, polymer cement, and styrene-acrylic emulsion-based waterproof coatings commonly applied to bathrooms, balconies, and basements. It is not recommended for solvent-based or high-solids polyurethane systems without prior compatibility testing.
Q2: How does the color paste affect the waterproofing performance of the final coating?
A: When used within recommended dosage levels, the color paste maintains the integrity of the waterproof film — it does not compromise adhesion, elongation, or hydrophobicity. Its dispersion-stable pigment system minimizes interference with the binder matrix, supporting consistent barrier formation.
Q3: Can this color paste be added directly to ready-mixed waterproof coatings on-site?
A: Yes — it is designed for easy incorporation into pre-mixed liquid coatings using low-shear stirring. For optimal dispersion and color uniformity, add gradually while mixing and allow sufficient dwell time before application. Avoid high-speed dispersion that may introduce air entrapment.
Q4: Is the color paste resistant to alkali exposure typical in cementitious substrates?
A: Yes — the pigment system and stabilizers are selected for alkali stability, ensuring minimal color shift or degradation when applied over fresh or cured cementitious surfaces. Long-term hue retention is supported under standard domestic pH conditions.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
