Ceraflour® 921 is a micronized organic polymer designed to impart a matte finish to solvent-borne and aqueous coatings. It enhances surface properties by improving scratch resistance, anti-burnishing, and metal marking resistance. This additive is exclusively available in the North American market.

End Uses: Solventborne Coating, Solventless & High Solids Coating, UV Coating, Waterborne Coating

Features: Excellent Sandability , Excellent Scratch Resistance, Matting

Enhanced TDS

Identification & Functionality

Manufactured By
Technologies
Product Families

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Coating End Applications
Use Level
0.5 - 10% (Additive - Coatings Industry)
Product Applications

Coatings Industry
Special Features and Benefits

The additive has a matting effect and simultaneously improves scratch resistance, metal marking resistance, and sandability. It can be used in most coating systems.

Recommended Use

  • Architectural coatings
  • Protective coatings
  • Industrial coatings


Recommended Levels
0.5-10% additive (as supplied) based on the total formulation, depending on the desired gloss level. The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions

The additive should preferably be incorporated into the coating at a medium shear rate at the end of the production process.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Water Content15%-
Solids Content100%-
Particle Size Distribution (D90)18μmLaser Diffraction Analyzer, Volume Distribution
Particle Size Distribution (D50)6μmLaser Diffraction Analyzer, Volume Distribution
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Flash Pointmin. 200°C-
Density (at 20°C, 1013 hPa)1.47g/cm³-
ColorWhite--
FlammabilityCombustible Solids--
pH (at 20°C)Insoluble--
Physical StateMicropowder--
Insoluble inWater
Composition

Micronized, organic polymer

Special Note

Ceraflour® 921 contains 15 weight percent water. However, the water is chemically bound and cannot be released into the coating formulation. The additive therefore has a solids content of 100% and contains no volatile components. For this reason, Ceraflour® 921 is also very stable in solvent-borne systems and in solvent- free UV systems. The water content increases the polarity of the additive, however, and thereby enables easier incorporation into aqueous systems. Ceraflour® 921 may react with some binders, e.g. moisture-curing polyurethanes.

Regulatory & Compliance

OEM Specifications

Storage & Handling

Storage Information

Temperature sensitive. To be stored and transported at a temperature below 50°C.