Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWSIL OP-8550 Silicone Additive

Dow DOWSIL OP-8550 is a high-performance silicone additive from Dow’s DOWSIL portfolio, designed to enhance substrate wetting, leveling, and slip in coatings, inks, and adhesives. It offers excellent compatibility, low foam generation, and stable performance across solventborne, waterborne, and UV-curable systems without compromising gloss or cure speed.
  • dow dowsil op 8550 silicone additive_476b1d99
  • dow dowsil op 8550 silicone additive_476b1d99

Features Of Dow DOWSIL OP-8550 Silicone Additive

  1. Enhances substrate wetting and leveling in high-solids and low-VOC coatings.

  2. Provides excellent compatibility with acrylic, polyester, and polyurethane resin systems.

  3. Delivers low surface tension without causing foam stabilization or intercoat adhesion issues.

  4. Enables improved flow and defect reduction (e.g., craters, orange peel) in industrial and automotive topcoats.

  5. Offers stable performance across a broad pH range and in both solventborne and waterborne formulations.

Typical Applications Of Dow DOWSIL OP-8550 Silicone Additive

  1. Automotive OEM and refinish clearcoats and basecoats.

  2. Industrial maintenance coatings for metal and plastic substrates.

  3. High-performance wood and furniture finishes.

  4. Plastic coatings requiring enhanced gloss uniformity and mar resistance.

  5. UV-curable and hybrid-cure decorative and protective coatings.

Specifications Of Dow DOWSIL OP-8550 Silicone Additive

Chemical TypeModified polydimethylsiloxane (PDMS) copolymer
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
Primary ApplicationsCoating additives for wetting, leveling, and flow control
Key FeaturesLow foaming, non-migrating, hydrolytically stable
Recommended Use Level0.05 – 0.3 wt% (based on total formulation)
Storage StabilityStable for ≥12 months at 5–30°C in unopened original container
Regulatory StatusCompliant with REACH; not classified as hazardous under GHS (as supplied)


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