Epoxy resin 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 baking

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Pre-impregnated Epoxy resin DMD FILM is Class F(155°C)insulating material

Pre-impregnatedEpoxy resin DMD FILM  has long shelf life at room temperature,low precuring temperature and time,showing excellent electrical insulation, bonding and heat-resistant properties.

Application

Pre-impregnated epoxy resin  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.

 

Pre-impregnated epoxy resin  DMD FILM date sheet as follows 

Properties  Units                                               Values  
Nominal thickness  mm  0.15   0.18   0.2  0.23  0.25   0.3   0.35 0.4 0.45  
Tolerance  mm ±0.02 ±0.025 ±0.03 ±0.03 ±0.03 ±0.03 ±0.035 ±0.040 ±0.045  
Thickness of film  mm  0.05   0.05  0.05   0.1   0.1  0.15   0.188 0.25 0.25  
Tensile Strength(no bending)  mm     ≥70        ≥80             ≥100  
Resin content   %      35±5          30±5       25±5        20±5  
Volatile content   %                               ≤1.5  
Smeltable resin content   %                               ≥1.0  
Dielectric strength mV/m                               ≥40  
Breakdown votage   kV   ≥7   ≥7   ≥7  ≥10  ≥10  ≥10   ≥15  ≥18  ≥18  
Tensile and shear strength  Mpa                               ≥3.0  
Heat shrinkage rate Crosswise   %                               ≤1.0  
Lengthwise                               ≤2.0  
Appearance   Soft,smooth free of any delamination impurity,damage,crack,blister.  
 
Color                                        Red,Brown,White  
Thermal rating class   ℃                                ≥155