Our electrical insulating pressboard is a specialized insulation material designed for electrical equipment. It is manufactured from 100% high-purity sulfate wood pulp and processed under high pressure. It integrates excellent electrical insulation properties, high mechanical strength, and good compatibility with insulating oil, effectively isolating electrical currents and protecting electrical equipment from short circuits and breakdown.
Through strict control of the production process, the product features uniform thickness, high density, low shrinkage, and excellent flatness, enabling it to withstand mechanical stresses during equipment operation and maintain stable performance over long-term use. It is widely used in oil-immersed transformers, reactors, capacitors, switches, motors, and other electrical equipment as winding insulation, barriers, insulation pads, and other components.
Our electrical insulating pressboard complies with international standards such as IEC 60641-3-1992 and the national standard GB/T 19264.3-2003. It is non-toxic, environmentally friendly, and does not contaminate transformer oil, meeting the environmental requirements of modern industrial production. We support customization services, covering thickness (0.5–8 mm), dimensions (1000×2000 mm, 4200×2100 mm, etc.), and specifications to meet the diverse needs of different equipment and projects.