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PAT-ADD DA 420 is a low foaming polymeric dispersing agent for use in waterborne industrial paints and pigment dispersions. PAT-ADD DA 420 is the most effective dispersant and stabilizer for the dispersion of inorganic and polar pigments in aqueous systems.

Functions: Dispersant

End Uses: Waterborne Coating

Compatible Polymers & Resins: Acrylics, Epoxies (EP), Polyesters

Solid Content: 48.0 - 50.0 %

Technical Data Sheet
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Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Properties

Polymeric dispersant PAT-ADD DA 420 shows strong interacting and high bonding strength onto inorganic and polar pigment substrates, thus creating a dense charged surface layer, which contributes to electrostatic stabilization of the dispersed particles. PAT-ADD DA 420 typically reduces the viscosity of the mill-base, enabling highest pigment loadings. PAT-ADD DA 420 is designed for use in a wide range of waterborne industrial paints, such as acrylics, stoving systems, 2-pack systems, epoxies, polyesters etc. Moreover, PAT-ADD DA 420 is recommended for use as dispersing agent in high loaded pigment concentrates. PAT-ADD DA 420 offers limited surface wetting; it is recommended to apply for these pigments PAT-ADD DA 420 in conjunction with strong surface wetting agents, such as PATADD DA 501 or to use PAT-ADD DA 401.

Benefits
  • Enables high pigment loadings, minimizes mill-base viscosity, optimizes color development 
  • Low foaming 
  • Strong prevention of pigment flocculation, floating, flooding, and pigment settling 
  • Designed to be used in waterborne industrial coatings

Applications & Uses

Compatible Polymers & Resins
Coating Type
Application

Dispersant for polar pigments in industrial paints and RFPC. Block copolymer.

Dosage & Addition

The optimal amount of PAT-ADD DA 420 to be used is system related, but generally is between 0.5 and 2.0% PAT-ADD DA 420, calculated on the total weight of paint formulation. The product is best added to the mill-base before the pigments. For use in pigment concentrates (PC) higher levels are suggested, such as 1 to 6% PATADD DA 420 on total weight of the PC. The optimum concentration to be used depends on the individual requirements and conditions and is recommended to be determined experimentally.

Properties

Physical Form
Appearance
Clear yellow liquid
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity at 25°Capprox. 5000cPs
Specific gravity at 25°Capprox. 1.06
PolarityElectro neutral
pH8.5 – 9.5
CompositionPolyelectrolyte
Solids contentapprox. 48 - 50%