Coad® 25 Zinc Stearate by Norac is an excellent general purpose zinc stearate. Also acts as an anticoagulant in latexes and an excellent mold release agent for phenolic, melamine, urea-formaldehyde, and other thermoset molding compounds. It appears as free flowing, very fine white powder with slight fatty odor and is insoluble in water. It is highly desirable whenever a very fine particle size and lower ash zinc stearate is preferred. It offers good melt clarity, heat stability, very low chloride content and low bulk density. Due to its high spreading power, Coad® 25 Zinc Stearate is used as a dusting powder for uncured rubber stocks where even, light coatings are desired.
Coad® 27D Zinc Stearate by Norac is a superior quality zinc stearate. It has an exceptionally smooth particle surface morphology results in low specific surface for a given particle size, which minimizes viscosity build during mixing. The precisely controlled particle size allows for viscosity and mixing control. It appears as fine white powder with slight fatty odor and is insoluble in water. It is applicable in SMC for class A surfaces, in which this Zinc Stearate at 12 microns yields lower mix viscosities while keeping the top size small enough to completely avoid surface blemishes. Coad® 27D Zinc Stearate is engineered specifically for use in matched metal die molding of SMC/BMC.
Coad® 10B Calcium Stearate by Norac acts as a dispersing aid during the blending cycle, as a lubricant and processing aid during extrusion. Also acts as a mold release agent for injecting molding and matched metal die molding under certain conditions. It is a high-grade calcium stearate. It has a very fine particle size and appears as free flowing, very fine white powder with slight fatty odor. It is practically insoluble in water. It also improves stability by neutralizing acidic decomposition products in the polymerization of certain polyolefins. Coad® 10B Calcium Stearate exhibits excellent heat stability properties for high temperature processing and provides mold release properties critical for thermoplastics and thermoset molding. It is applicable in polyester molding compounds and rigid PVC compounds. It meets the requirements of PPI-TR3 and NSF Standard 14 for potable water.
