High-density (HD) pre-compressed pressboard Raman Sigmacom 3.1 is manufactured from electric grade unbleached sulfate kraft pulp with purified water. The wet board is pressed and dried simultaneously to obtain boards of good dimensional stability, excellent mechanical strength.

They are used as base insulating material in power, distribution and autotransformers and are manufactured according to IEC standards.

Product scope:

• Maximum size: 2,100 mm x 4,200 mm and 2,100 mm x 3,200 mm
• Thickness: 1 mm to 6 mm