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

Category	Specifications
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

Property	Description
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

Industry	Use 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

Advantage	Benefit
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

Parameter	Recommendation
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

Aspect	Details
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

Feature	STD-2033	Standard 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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