SURFADIOLS 270

Silicone-based Substrate Wetting Agent

SURFADIOLS 270

(Alternative to TEGO Wet-270 and BYK-348)

SURFADIOLS 270 is a silicone surfactant for aqueous coatings, adhesives, printing inks, overprint varnishes and care products with a strong reduction of surface tension and therefore an improvement of substrate wetting. It shows excellent anti-crater properties with flow promotion in waterborne systems. It can also be used in radiation curing system, solvent-based and solvent-free (two-component) system.

Typical properties

AppearanceLight yellow liquid
CompositionPolyether siloxane copolymer
Active substance content100%
Density (20°C), g/cm30.980-1.050
Viscosity20-120mpa.s
Solubility in waterNot soluble

Special properties

  • • Highly active and broadly usable
  • • Efficient crater prevention and elimination
  • • Suitable for waterborne, solventborne, and radiation-curing coatings
  • • Widely used in the wetting of plastic, metal, glass, wood and other substrates
  • • Improves substrate wetting and leveling
  • • Good recoatability
  • • Does not increase surface slip

Scope of application

  • • Industrial coatings              
  • • Wood coatings             
  • • Architectural paints
  • • Leather coatings               
  • • Printing inks               
  • • Overprint varnishes
  • • Adhesives                    
  • • Floor care products

Incorporation and Processing Instructions

Addition as supplied is recommended. Addition at the let-down stage is recommended.

Recommended Levels

Amount of additive (as supplied) based upon total formulation: 0.1% – 1.0%.

The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.

Package and storage

The standard package is 25kg plastic pails.

Keep containers tightly closed in a dry, cool, and well-ventilated place. When stored in an original unopened packaging between -10 and 40 °C, the product has a shelf life of 24 months from the date of manufacture.

Separation or turbidity may occur when stored or transported below 5 °C. Heat to 20 °C and stir. The quality of the product will not be affected.

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