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Allnex ADDITOL XL 255 N is a high-quality special additive for coatings in Allnex’s ADDITOL® series, specially developed for various paint and coating systems, which is a two-in-one product of electrically neutral wetting agent and pigment dispersant. It has excellent pigment wettability and system compatibility, can effectively reduce flocculation of organic and inorganic pigments in air-drying and baking coatings, increase pigment loading, enhance coating sag resistance,
Excellent electrically neutral properties - Suitable for various ionic coating systems, no compatibility conflicts, strong stability
High-efficiency wetting and dispersion - Improve pigment wettability, reduce flocculation, and enhance dispersion uniformity and stability
Good system compatibility - Good adaptability with various coating resins and additives, without affecting the overall performance of the formula
Excellent coating performance - Enhance coating sag resistance, facilitate construction, and reduce paint film construction defects
Significant appearance optimization - Increase pigment loading, improve paint film texture, and create excellent finished product appearance
Coil and pre-coated metal coatings - Suitable for coil coating process, improve paint film hardness and weather resistance stability
Marine heavy-duty anti-corrosion coatings - Enhance paint film salt spray and water resistance, suitable for harsh marine working conditions
Industrial metal protective coatings - Improve the protection of metal substrates, enhance impact and scratch resistance
Industrial wood coatings - Endow wood paint film with high hardness, inhibit yellowing and maintain appearance consistency
Automotive OEM coatings - Optimize paint film gloss and adhesion, improve the comprehensive performance of vehicle coating
| Series | ADDITOL® Series |
| Chemical Type | Crosslinkable Polymer Grinding Medium |
| Product Form | Pale yellow viscous liquid (25℃, typical value) |
| Ionicity | Non-ionic |
| Solid Content | ≥90% (high solid content, typical value) |
| Density (25℃) | 0.95-0.99g/cm³ (typical value) |
| Viscosity (25℃) | 800-1500mPa·s (typical value) |
| Flash Point (Closed Cup) | ≥120℃ (typical value) |
| Solubility | Soluble in organic solvents |
| Molecular Weight | 5000-15000 g/mol (estimated) |
| pH Value | 6.5-8.5 (typical) |
Q1: What is the primary function of ADDITOL XL 255 N in coating and ink formulations?
A: ADDITOL XL 255 N is a non-ionic wetting agent designed to reduce surface tension, improve substrate润湿 (wetting), enhance pigment dispersion stability, and support uniform film formation—particularly in waterborne and solvent-borne systems where interfacial compatibility is critical.
Q2: Is ADDITOL XL 255 N compatible with common resin systems used in industrial coatings?
A: Yes, it demonstrates broad compatibility with acrylics, polyurethanes, alkyds, and epoxy-based resins in both aqueous and organic media. Its molecular structure supports stable performance without compromising gloss, clarity, or storage stability in multi-component systems.
Q3: How should ADDITOL XL 255 N be incorporated into a formulation for optimal performance?
A: It is typically added during the grinding or let-down stage, either directly to the millbase or pre-diluted in a compatible solvent or water. Dosage depends on formulation requirements but generally ranges from 0.1% to 2% by weight relative to total formulation solids.
Q4: Does ADDITOL XL 255 N contribute to foam generation or affect defoaming behavior?
A: As a low-foaming wetting agent, it exhibits minimal air entrapment tendency and is generally compatible with standard defoamers. However, in high-shear processes or highly aerated systems, synergistic evaluation with defoaming agents is recommended to ensure optimal balance.
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