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Shanghai Wenyou Industry Co., Ltd.
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Low Viscosity Epoxy Resin System for Dry-Type Transformer Vacuum Casting

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Low Viscosity Epoxy Resin System for Dry-Type Transformer Vacuum Casting

Brand Name : WENYOU

Model Number : LE-9516

Certification : ISO RoHS REACH

Place of Origin : CHINA

MOQ : 20KG

Price : Pricing based on different products

Payment Terms : L/C,T/T

Supply Ability : 12000 tons

Delivery Time : 7 working days

Packaging Details : 20KG/200KG/1200KG with Drum

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Flame Retardant Epoxy Resin Potting Compound for 10-35kV Electrical Insulation
Production Formulation
Component Material Quantity Notes
Epoxy resin LE-8516 100 pbw Modified saturated epoxy resin system
Hardener LH-8516 100 pbw Modified weather-resistant acid anhydride hardener
Filler Silica Flour 300-350 pbw
Color paste LC series 3 pbw
Material Properties
Property Unit Value
Appearance Visual Transparent, light yellow, viscous liquid
Epoxy value Eq/kg 4.5-5.0
Viscosity at 25°C mPa.s 500-1000
Density at 25°C g/cm3 1.16-1.20
Vapour Pressure at 25°C Pa <0.01
Flash point °C About 135
Processing Parameters
Parameter Automatic Pressure Gelation Vacuum Casting
Epoxy/hardener mixture temperature 40°C /1-2 hours 50-60°C /1-1.5hours
Feeding process Pressure (0.5-5bar) Vacuum (casting pot)
Mold temperature 130-150°C 105°C / 4-6 hours
Gelation time 10-30mins 80°C/4 hrs+100°C/2hrs+120°C/2hrs
Post cure 130-140°C*6-10 hrs 130-140°C*6-10 hrs
Cured Material Properties
Property Value Property Value
Glass transition temperature Tg (DSC) 60-80°C Thermal conductivity 0.8-0.9W/mk
Tensile strength 60-80N/mm² Thermal decomposition >320°C
Flexural strength 100-130N/mm² Water absorption (23°C*10days) 0.10-0.20% by wt.
Compressive strength 140-190N/mm² Water absorption (100°C*60 mins) 0.08-0.15% by wt.
Impact strength 8-16kJ/m² Surface resistivity 10¹⁴Ω
Curing shrinkage 0.8-1.0% Volume resistivity 10¹⁵Ω.cm
Flammability (4mm) HB Class Dielectric strength 20-30kV/mm
Loss factor 0.02
Storage Information
Store components in tightly sealed, dry original containers at 6-35°C. Shelf life corresponds to expiration date on label (normally 12 months). Partial emptied containers should be closed tightly immediately after use.
About Shanghai Wenyou Industry Co., Ltd.
Established in 2008, we are a professional epoxy resin company specializing in manufacturing, R&D, and sales of epoxy resin, curing agents, and related products. Our product range includes epoxy resin, flame retardant resin, curing agents, outdoor modifiers, toughening agents, epoxy paste, demoulding agents, and fillers.
Certified with ISO9001, ISO14001, SGS, and UL, our products comply with ROHS and REACH safety regulations. Our high-quality products are used in high voltage electrical insulation applications and are exported globally.

Product Tags:

low viscosity epoxy resin

      

dry-type transformer epoxy

      

vacuum casting electrical resin

      
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