Microsun Zinc Oxide W65/80 is a water based dispersion agent that provides improved UV radiation protection. It prevents the breakdown of chalking, and improves gloss retention for coated substrates. The product is liquid in form, brown in color, and has a mean primary particle size of 70 to 90 nm, a specific gravity of 2.3 grams per cubic centimeter, and a Zinc Oxide purity of greater than 99.5 percent. It has antifungal and antibacterial attributes that can aid at lowering surface build up. This product is used in used in exterior and interior paints to provide a semi transparent film of dispersed sub-micron Zinc Oxide where improvements to longevity and weatherability are desired, and where transparency is less desired.