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High-purity silicone flake resin with excellent thermal stability up to 200 °C.
Low surface energy and superior hydrophobicity for enhanced moisture resistance.
Excellent compatibility with epoxy, polyester, and acrylic resin systems.
Non-yellowing performance under UV exposure and long-term outdoor aging.
Free-flowing flake morphology enabling uniform dispersion in powder coatings and composites.
Functional additive in high-performance powder coatings for architectural aluminum.
Surface modifier in thermoset composites for aerospace and automotive interior parts.
Hydrophobic agent in flame-retardant cable jacketing compounds.
Release-enhancing component in silicone-modified mold release agents.
Performance booster in weatherable industrial maintenance coatings.
| Chemical Type | Methyl-phenyl silicone flake resin |
| Product Form | Free-flowing white flakes |
| Appearance | Off-white to light tan flakes |
| Volatility (105 °C, 2 h) | ≤ 1.5 wt% |
| LOI (Limiting Oxygen Index) | 28–30 |
| Primary Applications | Surface modification, hydrophobicity enhancement, thermal stabilization |
| Key Features | Thermal stability, UV resistance, low surface energy, dispersion efficiency |
| Benefits | Improved coating durability, reduced water absorption, extended service life in harsh environments |
Q1: What is the primary function of DOWSIL RSN-0220 in coating and ink formulations?
A: DOWSIL RSN-0220 is a silicone flake resin designed to enhance surface slip, improve scratch resistance, and reduce coefficient of friction in high-performance coatings and printing inks. Its platelet morphology promotes oriented film formation, contributing to improved barrier properties and tactile feel.
Q2: How is DOWSIL RSN-0220 typically incorporated into formulations?
A: It is generally added during the pigment grinding or let-down stage using high-shear mixing. Pre-dispersion in compatible solvents or resins is recommended to ensure uniform distribution. Compatibility should be verified with the base resin system, especially in solvent-borne and high-solids formulations.
Q3: Is DOWSIL RSN-0220 suitable for use in food-contact coatings?
A: While DOWSIL RSN-0220 is not pre-approved for direct food contact under global regulatory frameworks, it may be considered for indirect food-contact applications where permitted by local regulations and subject to full formulation evaluation and migration testing by the end-user.
Q4: Does this product require special storage or handling precautions?
A: Store in a cool, dry place away from direct sunlight and sources of heat. Keep containers tightly sealed to prevent moisture absorption and agglomeration. Standard industrial hygiene practices apply—avoid inhalation of dust and prolonged skin contact.
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E-mail: wangxingqiang@ericwchem.com
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