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BR 125 NPF

• BR 125 NPF is a water-soluble non-ionic polyurethane, commonly used as a rheology modifier in various formulations, particularly in paint and coating applications. Here's a breakdown of its characteristics and applications:

  Typical Characteristics:

  • Nature: Water-soluble non-ionic polyurethane
  • Appearance: Whitish liquid
  • Solid Content: 40%
  • Active Content: 40%
  • pH: 5.5 (@10% in water, 25°C)
  • Brookfield viscosity: 2000 mPa.s
  • Specific Gravity: 1.06
  • Solvent: Water / Butyldiglycol (45/15)

  Description:

  • BR 125 NPF is an associative rheology modifier, imparting a unique Newtonian rheological profile characterized by low viscosity at low shear rates and high viscosity at high shear rates.
  • Main applications include gloss emulsion paints, semi-gloss, flat dispersion paints, anticorrosive paints, and adhesives.

  Recommended Addition Level:

  • 0.2 - 1.0% as supplied on the total formulation.

  Standard Packaging:

  • Available in 1000L IBC or 220L Plastic Drum. Other packaging options may be available upon request.

  Handling & Storage:

  • Store between 5 and 40°C, protected from weathering and direct sun exposure.
  • Avoid exposure to frost.
  • Once opened, reseal packaging immediately.
  • Use within 12 months from delivery.

  Processing Instructions:

  • Can be used as supplied or as a 10% solids solution.
  • Addition level: 0.1 to 1% active ingredients on the total weight of the paint formulation.
  • Can be added at the pigment grind stage or after letdown.

  Health and Environmental Data:

  • For safe handling, refer to the Safety Data Sheet (SDS).
  • Contact the manufacturer for more information about health and environmental data.

  Key Benefits:

  • Easy handling, post-addition, ready to use.
  • Compatibility with various colors and cost-effectiveness.
  • Provides viscosity stability, in-can appearance, and resistance to syneresis.
  • Improves brushability, rollability, spatter resistance, and film sprayability.

  Film Properties:

  • Enhances gloss, leveling, transparency, water resistance, and anticorrosion properties.

  Thickening Mechanism:

  • Associative

  Viscosity Contribution:

  • High shear contribution
  • Low shear contribution
  • Mid shear contribution

  PVC (Polyvinyl Chloride):

  • BR 125 NPF serves as a thickening and leveling agent for water-based systems, particularly suitable for HEUR Polyurethane Thickener.

  BR 125 NPF is a versatile additive offering several benefits in paint and coating formulations, contributing to improved rheological properties and overall performance.