Insulating Pressboards
Calendered Solid Pressboards are made on an intermittent board machine using high quality cellulose. The boards are flattened in a hydraulic press, dried, and subsequently calendered to achieve a smooth finish. No bonding agent is added during manufacturing. The entire manufacturing process is monitored and controlled, right from the preparation of pulp to the formation and drying of the sheets.
Applications
Calendered Solid Pressboards are ideally suited for use in power and distribution transformers as winding cylinders, spacers, strips, etc.
Features
Conforms to the electrical and mechanical strength properties as specified by IEC 60641-3-1: Type B.2.1A.
Also available in variants conforming to IS 1576: Type D, IS 1576: Type C, and other specifications.
Available in 1.0, 1.5, & 3.0 mm thickness in stock, and other thickness on request.
High density and purity, uniform thickness and dimensional stability, low compressibility & shrinkage, high mechanical & electrical strength.