Diamond Dotted Paper

Diamond Dotted Paper (DDP) is a key insulation material for transformer windings. Made from electrical insulation paper coated with diamond-shaped epoxy dots, it features excellent insulation, air permeability and thermosetting bonding. It improves winding mechanical strength and short-circuit resistance, widely used for layer and turn-to-turn insulation in oil-immersed and dry-type transformers.Using high-quality insulation substrate, combined with specialized dispensing technology, it has uniform adhesion, excellent insulation performance, high temperature resistance, oil resistance, and moisture resistance. It can effectively fix the coil winding, prevent displacement, and enhance the internal insulation protection of the transformer, improving the stability and service life of equipment operation. The product specifications are complete, and the size, thickness, and viscosity can be customized according to customer needs to meet the production needs of different types of transformers. It is widely used in the fields of power, distribution, and industrial transformer manufacturing.