China Electrical Epoxy Resin manufacturer
Shanghai Wenyou Industry Co., Ltd.
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UL 94 V-0 Certified Crystal Clear Epoxy Potting Resin with Room-Temperature Cure for Electrical Transformers

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Shanghai Wenyou Industry Co., Ltd.

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:86-21-57500369-841

Contact Person:
Ms.Hope View Contact Details

UL 94 V-0 Certified Crystal Clear Epoxy Potting Resin with Room-Temperature Cure for Electrical Transformers

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Brand Name wenyou
Model Number 8218A
Certification ISO9001, ISO14001, SGS, and UL
Place of Origin China
Minimum Order Quantity 20kg/pail as sample
Price Negotiable
Payment Terms Normally T/T,L/C
Supply Ability Plenty of raw material in stock
Delivery Time 7 -10 work days
Packaging Details 20kg/pail, 220kg/barrel, 1200kg/tank
Classification Double Components Adhesives
Usage insulation products, connectors, etc.
Application Various products cured at room temperature
Appearance of epoxy resin Red viscous liquid
Viscosity at 40°C 20000 - 40000mPa.s
Density at 25°C 1.55 - 1.70g/cm3
Vapor Pressure at 25°C ＜ 0.01Pa
Flash point around 135°C
Discription Electronic connectors crystal clear epoxy resin hand pouring curing agent
Detailed Product Description
UL 94 Flammability V-0 Fire-Resistant Epoxy Potting Resin for Electrical Transformers & Coils
LW-8128A/LH-8116: UL 94 V-0 Crystal Clear Epoxy Potting Resin for Electronic Connectors | Hand-Pour Application
Product Overview
LW-8128A/LH-8116 is a premium two-component, crystal clear epoxy potting system engineered for hand-pour encapsulation of sensitive electronics. Featuring UL 94 V-0 flame resistance, modified PBA epoxy resin (LW-8128A), and a modified amine hardener (LH-8116), this system delivers exceptional clarity, electrical insulation, and fire safety for electronic connectors, sensors, and micro-transformers. With room-temperature curing and vacuum-compatible processing, it ensures bubble-free protection against moisture, chemicals, and thermal stress.
Key Features & Benefits
PropertySpecificationBenefit
Flame ResistanceUL 94 V-0 CertifiedPrevents fire propagation in electrical failures
ClarityCrystal Clear (Custom Color Options)Aesthetic transparency for visual inspection of components
CuringRoom-Temperature CureEnergy-efficient processing; no ovens required
ProcessingHand-Pour or Vacuum CastingFlexible for low-volume batches or precision vacuum impregnation
Electrical SafetyHigh Dielectric StrengthReliable insulation for connectors operating under electrical stress
CompatibilityPre-Mixed Fillers & Color PasteUniform consistency; reduces mixing errors
Applications
Ideal for encapsulating:
  • Electronic connectors (signal, power, PCB headers)
  • Miniature transformers and inductors
  • Sensor modules and LED arrays
  • Insulation bobbins and coil terminals
  • Wearable electronics and IoT devices
Technical Specifications
Epoxy ResinLW-8128A (100 pbw)
Curing AgentLH-8116 (20-25 pbw)
Color PasteLC Series (1 pbw, optional)
ViscosityPaste Consistency (25°C)
Pot Life40-60 minutes (25°C)
Cure Time24-48 hours (25°C)
Hardness (Shore D)≥85
CertificationUL 94 V-0 Flame Rating
Processing Guide
  1. Mixing: Blend LW-8128A resin and LH-8116 hardener at 100:22.5 pbw (default ratio). Add LC-series color paste if required.
  2. Degassing: Vacuum degas mixture (recommended for bubble-free clarity).
  3. Pouring: Hand-pour or gravity-cast over components.
  4. Curing: Cure 24h at 25°C (accelerated curing at 60°C optional).
Why Choose This System?
  • Flame Safety: Meets stringent UL 94 V-0 standards for electronics in high-risk environments
  • Ease of Use: Paste consistency simplifies manual application without sagging
  • Optical Clarity: Maintains component visibility for QC inspections
  • Adaptable: Integrates with existing hand-pour or vacuum production lines
Package Image
Shipment Image
Example Application Image
Product Tags: Crack-resistant epoxy resin for transformers   Flame retardant epoxy resin insulation   Dry-type transformer epoxy resin coating  
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