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Leveling agent STD-2033

Composition: Polyether modified silicone oil

Appearance: light yellow viscous liquid

Active ingredient: 100%

Solvent: None

Application range:

Can be applied to all solvent-based systems, water-based systems, light-curing systems, etc.

Leveling Agent STD-2033: Technical Overview

CategorySpecifications
Product Name Leveling Agent STD-2033
Chemical Type Polyether-modified polysiloxane
Appearance Clear to pale yellow liquid
Active Content 100%
Density (25°C) 1.01-1.03 g/cm³
Viscosity (25°C) 50-150 mPa·s
Solubility Soluble in most organic solvents; dispersible in water
Flash Point >100°C (closed cup)

Key Properties & Functions

PropertyDescription
Surface Tension Reduction Improves substrate wetting (<25 mN/m)
Leveling Performance Eliminates brush marks, orange peel, and cratering
Compatibility Works with waterborne, solvent-borne, and UV-curable systems
Thermal Stability Stable up to 150°C
Foam Control Low foam generation

Applications

IndustryUse Case
Industrial Coatings Improves flow in automotive and machinery paints
Wood Coatings Enhances smoothness in furniture finishes
Architectural Paints Reduces surface defects in wall coatings
Printing Inks Prevents pinholing and improves gloss
UV Coatings Ensures uniform curing without defects

Performance Advantages

AdvantageBenefit
Excellent Flow Eliminates surface imperfections
Wide Compatibility Suitable for multiple resin systems
Low Volatility No VOC emissions
Easy Incorporation Can be added at any stage of formulation
Cost-Effective Effective at 0.1-1.0% dosage

Usage Guidelines

ParameterRecommendation
Dosage 0.1-1.0% of total formulation
Addition Point Preferably during let-down phase
Mixing Moderate stirring sufficient
Storage Keep sealed at 5-30°C; shelf life: 24 months

Safety & Compliance

AspectDetails
Toxicity LD50 > 2000 mg/kg (oral, rat)
Skin Irritation Mild (Category 3)
Regulatory Complies with REACH, FDA 21 CFR 175.300
Handling Use gloves and goggles; ensure ventilation

Comparison with Alternatives

FeatureSTD-2033Standard Leveling Agents
Surface Tension Reduction Excellent (≤25 mN/m) Moderate (30-35 mN/m)
Defect Elimination Superior (no craters/streaks) Partial improvement
Compatibility Broad (water/solvent/UV) Limited to specific systems

References

Product Technical Data Sheet (2024)

Journal of Coatings Technology– “Advances in Surface Modifiers” (2023)


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