Diamond Dotted PaperDiamond Dotted Paper

Diamond Dotted Insulation Paper (DDP) is an electrical insulating material made from high-quality insulation paper coated with heat-curable epoxy resin. The resin is applied on both sides in a uniform diamond pattern (9.5 mm × 9.5 mm with 15.9 mm spacing), ensuring controlled bonding and consistent performance.

At normal temperatures, DDP remains dry, non-sticky, and easy to handle. When heated (starting around 90°C), the epoxy resin melts and cures, firmly bonding conductors and insulation layers into a solid, unified structure. This process provides strong adhesion and enhances the mechanical strength of the winding.

DDP offers excellent compatibility with insulating oils and varnishes after curing, making it ideal for use in transformers, coils, and other electrical applications requiring reliable insulation and structural stability.

General notes: Dimensions, grades, and certifications can be shared on request.