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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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DOWSIL™ 205SL Additive

Technical Datasheet | Supplied by Dow
DOWSIL™ 205SL Additive by Dow is 50% silicone polyether copolymer in ethylene glycol isopropyl ether. It is an effective foam control agent and also offers mar resistance as well as levelling properties. It is a BTX-free grade, re-coatable and provides superior hand feel and defoaming in solvent-borne, water-borne and radiation curable coatings, inks and overprint varnishes. It lowers coefficient of friction especially in solvent-borne coatings and has a very low freeze point for easy storage. It is suitable across a wide range of substrates, including paper, board, wood and plastics, food packaging inks, pigmented and clear coat formulations. DOWSIL™ 205SL Additive is recommended to use at approximately 0.2% as supplied based on the total formulation. The shelf life is 36 months.
DOWSIL™ 205SL Additive
Technical Datasheet | Supplied by Dow
Product Type
  • Scratch / Scrub / Mar Resistance Agents
  • Flow / Levelling Agents
  • Defoamers / Anti-foaming Agents > Silicone-based
Chemical Composition
50% Silicone polyether copolymer in ethylene glycol isopropyl ether
Physical Form
Transparent, Colorless to pale tan
Product Status
Applications/ Recommended for
  • Coatings > Waterborne
  • Coatings > Solventborne
  • Coatings > UV / Radiation Curing
  • Inks > Varnishes / Over print varnish
  • Coatings Markets > Wood & Furniture Coatings
  • Coatings Markets > Plastic coating
  • Coatings Markets > Other industries > Paper coatings
Labels/Agency Rating
Listed on Annex 6 Part B, of the Swiss Ordinance RS 817.023.211

DOWSIL™ 205SL Additive Properties


Value & Unit
Test Condition
Test Method
Viscosity @ 25°C, CTM 0050 AAN
25 - 60 mm2/s
Melting point
< -20 °C

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