Ferro Corp.'s new calcium stearates are designed for improved surface quality and processing in rigid PVC profiles and polyolefin extrusions as well as in consumer films.
Calcium Stearate 500 powder and 600 granules act as acid scavengers and lubricants while providing higher surface quality in products highly sensitive to surface defects. For polyolefin fiber extrusion, they also boost throughput by reducing the need for clean-outs. The new products are an advance over traditional calcium stearate but are lower in cost than precipitated calcium stearate, according to Ferro's Organic Specialties Group in Independence, Ohio.
Tel. 216-641-8580, fax 216-750-1416.