These are manufactured from quality cellulose fibres to meet the insulation requirements of motor, capacitor, and transformer manufacturers. They are made without additives in a multi-vat cylinder machine and are subsequently calendered to achieve a smooth finish. The manufacturing process results in homogeneous layers with excellent mechanical and electrical strength.

The thermally upgraded paper is also available as diamond-dotted press paper when cured with ‘B’ stage epoxy resin, which could be dotted on one or both sides for use as inter – layer insulation in distribution transformers.