CERAFLOUR 950 is a micronized wax additive based on modified high-density polyethylene (HDPE). It is primarily used in solvent-borne and solvent-free coatings, printing inks, and powder coatings to enhance scratch resistance, impart a soft-feel effect, and provide matting properties. Here are the key details from the provided data sheet:
1. Product Data:
- Composition: Micronized, modified HD polyethylene wax
- Typical Properties:
- Density: 0.95 g/cm³
- Melting Point: 135 °C
- Particle Size Distribution:
- Form: Micropowder
2. Applications:
- Liquid Coatings:
- Enhances scratch resistance, provides a soft-feel effect, and mattes the surface.
- Suitable for solvent-free, radiation-curable coating systems.
- Printing Inks and Overprint Varnishes:
- Improves surface slip and abrasion resistance in solvent-free, radiation-curable formulations.
- Recommended for both printing inks and overprint varnishes.
- Powder Coatings:
- Recommended for matting powder coatings based on various resins including polyester, polyester/epoxide, acrylate, polyurethane, and epoxides.
- Enhances surface protection in powder coating applications.
3. Recommended Levels:
- Liquid Coatings:
- 1-10% additive (as supplied) based on the total formulation, depending on the desired gloss level.
- Printing Inks and Overprint Varnishes:
- 0.1-0.3% additive (as supplied) based on the total formulation.
- Powder Coatings:
- 0.5-2% additive (as supplied) based on the total formulation.
4. Incorporation and Processing Instructions:
- Liquid Coatings and Printing Inks:
- Incorporate at the end of the production process at a moderate shear rate.
- Powder Coatings:
- Mix with resin, hardener, pigments, and other additives using a high-speed mixer.
- Extrude along with all components for optimal dispersion.
5. Handling and Storage:
- Storage: Temperature sensitive; store and transport below 50 °C.
- Shelf Life: Typically stable for 60 months from the date of manufacture in unopened packaging.