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Powder Coatings
Application Guide: Powder Coating
BACKGROUND
Industrial powder coatings are 100% solid coatings that are based on formulations composed of thermoset resins, curing agents, fillers, pigments, and other additives. Fillers reduce sag, provide reinforcement, reduce UV degradation, and improve moisture and corrosion resistance. Both decorative and functional powder coatings can successfully utilize functional fillers.
PRODUCTS FOR SELECTION:
EXPECTED OBSERVATIONS
Wollastonite with low to moderate aspect ratio (5:1 to 9:1) provides superior appearance with very good flow properties. Gloss control is generally the first observation.
Wollastonite can be used to substitute for part of the hardener to create flattening.
Wollastonite is not recommended in high gloss applications.
Wollastonite can be used to create special effects and in some cases surface treatment chemistries can be advantageous.
SUGGESTED LOADINGS
PRODUCT: WEIGHT %
Wollastonite 800 or 905: 15 - 30
Muscovite Mica: 10 - 20
COMMENTARY
Resins and formulations can vary. An important factor is intended use of the powder, for functional or decorative applications. Contact Fibertec for specific grades, surface treatments, and technical assistance.
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