Calcium stearate is a waxy white powder found in many surfactants and some lubricants. It is sold commercially in the form of a dried powder, spray, or one-half dispersion in water.
Some common applications of calcium stearate include:
- Food additive (known as generic E number "E470")
- Flow agent in powders
- Hard candy surface conditioner
- Waterproofing agent for fabrics
- Crayon and pencil lubricant
Common industries of use:
Concrete industry: Calcium stearate is also utilized heavily in the concrete industry as an efflorescent agent to control cementitious products used to produce blocks and pavers, in addition to waterproofing.
Paper industry: Used as a lubricant to ensure adequate surface gloss, thereby preventing fold cracks and surface dusting.
Plastics industry: Used as an acid neutralizer, release agent, lubricant, and plastic colorant concentrator.
Pharmaceutical industry: It is used in pharmaceuticals and personal care products as a gelling and antitack agent. In addition, calcium stearate often serves as a tablet mold release agent in these arenas.