This white powder is widely used as a corrosion resistant coating on metal surfaces either as part of an electroplating process or applied as a primer pigment (see also red lead).
[1][2] Zinc phosphate coats better on a crystalline structure than bare metal, so a seeding agent is often used as a pre-treatment.
Zinc phosphate cement has high compressive strength, low film thickness, minimal setting shrinkage and thermal expansion and is biocompatible.
Zinc phosphate cement has a high adhesive capacity to the tooth, metal, or even zirconium oxide.
Despite its strong acidity, zinc phosphate cement does not damage the pulp (or the tooth nerve) during the setting phase.