XIN CHENG INDUSTRY MATERIAL CO., LTD.  

Product Name: Pre-Impregnated DMD Film for Casting Transformer (PRE-PREG DMD FILM) Pre-Preg DMD Insulation Film Model NO.: pre-dmd film Brand: Xincheng Color: Red Certification: UL, ISO9001 Classification: Hybrid Insulation Materials Maximum Voltage: >100KV Thermal Rating: F 155 Material: Pet Film Non Woven Chemistry: Organic Insulation Type: Insulation Film Application: Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical base, Shell, Cast Transformer Winding Trademark: xincheng Transport Package: Pallets Origin: China Product Description Pre-impregnated DMD FILM Pre-impregnated DMD(Class F)formed in the process of precuring the modified F-class DMD with impregnation of Hi-temp resistant Epoxy resin into B-stage by bakingCharactersPre-impregnated DMD FILM is Class F(155°C)insulating materialPre-impregnated DMD FILM has long shelf life at room temperature,low precuring temperature and time,showing excellent electrical insulation, bonding and heat-resistant properties.ApplicationPre-impregnated DMD FILM is used for liner insulation of copper foil (aluminum foil) low voltage coils in dry-type transformer and slot insulation and interphase insulation in B ~ F class motors and electrical appliances.Special specification can be supplied according to customer request.PropertiesUnits ValuesNominal thicknessmm0.15 0.18 0.20.230.25 0.3 0.350.4 0.45 Tolerancemm±0.02±0.025±0.03±0.03±0.03±0.03±0.035±0.040±0.045Thickness of filmmm0.05 0.050.05 0.1 0.10.15 0.1880.25 0.25 Tensile Strength(no bending)mm ≥70 ≥80 ≥100Resin content % 35±5 30±5 25±5 20±5Volatile content % ≤1.5Smeltable resin content % ≥1.0Dielectric strengthmV/m ≥40Breakdown votage kV ≥7 ≥7 ≥7≥10≥10≥10 ≥15≥18≥18Tensile and shear strengthMpa ≥3.0Heat shrinkage rate Crosswise % ≤1.0Lengthwise ≤2.0AppearanceSoft,smooth free of any delamination impurity,damage,crack,blister.Color Red,Brown,WhiteThermal rating class ºC ≥155