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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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DOWSIL™ 500W Additive

Technical Datasheet | Supplied by Dow
DOWSIL™ 500W Additive by Dow is a low VOC, low molecular weight, organo-functional silicone polyether copolymer. Acts as a wetting agent. Designed for water-borne & radiation curable coatings, inks and overprint varnishes. It is recoatable, BTX-free and has no significant impact on slip properties. Exhibits excellent surface mobility and flexibility. Offers long lasting performance in high pH binders. DOWSIL™ 500W Additive is effective at low addition levels.
DOWSIL™ 500W Additive
Technical Datasheet | Supplied by Dow
Product Type
Wetting Agents / Wet Edge Enhancers > Silicones
Chemical Composition
Silicone polyether copolymer
Physical Form
Clear to slightly hazy, colorless to amber
Product Status
Applications/ Recommended for
  • Coatings > UV / Radiation Curing
  • Coatings > Waterborne
  • Inks > Water-based
  • Inks > UV / Radiation-curable
  • Inks > Varnishes / Over print varnish

DOWSIL™ 500W Additive Properties


Value & Unit
Test Condition
Test Method
Viscosity @ 25°C, 0004A Corporate Test Method
25.5 - 29.5 cSt
HLB Range
Surface tension, TIS 2003-I0000-52348 (0.1%)
22.0 mN/m

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