Two new calcium stearates have been optimized to improve the surface quality of rigid PVC window profiles and siding and polyolefin films for consumer packaging. Calcium stearate 500 and 600 from Ferro Corp.'s Organic Specialties Group (formerly the Polymer Additives Div.), Independence, Ohio, maintain the functionality of calcium stearate as an acid scavenger and lubricant but also improve product quality in applications that have a high sensitivity to surface imperfections. They also reportedly improve throughput of polyolefin fibers by reducing the need for cleanouts of clogged dies. These products are more economical than high-cost precipitated products. Both powder and granular forms are available.
Polymer Additives Div
7061 E. Pleasant Valley Rd Independence, OH 44146
Phone (216) 641-8580 Fax (216) 439-7686