Shanghai Wenyou Industry Co., Ltd.
| 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 |
| Brand Name | wenyou |
| Model Number | 8218A |
| Certification | ISO9001, ISO14001, SGS, and UL |
| Place of Origin | China |
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Product Specification
| 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 | Brand Name | wenyou |
| Model Number | 8218A | Certification | ISO9001, ISO14001, SGS, and UL |
| Place of Origin | China | ||
| High Light | Electrical Transformers Epoxy Potting Resin ，UL 94 V-0 Fire-Resistant Epoxy ，Coils Epoxy Potting Resin | ||
LW-8128A/LH-8116: UL 94 V-0 Crystal Clear Epoxy Potting Resin for Electronic Connectors | Hand-Pour Application
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.
| Property | Specification | Benefit |
|---|---|---|
| Flame Resistance | UL 94 V-0 Certified | Prevents fire propagation in electrical failures. |
| Clarity | Crystal Clear (Custom Color Options) | Aesthetic transparency for visual inspection of components. |
| Curing | Room-Temperature Cure | Energy-efficient processing; no ovens required. |
| Processing | Hand-Pour or Vacuum Casting | Flexible for low-volume batches or precision vacuum impregnation. |
| Electrical Safety | High Dielectric Strength | Reliable insulation for connectors operating under electrical stress. |
| Compatibility | Pre-Mixed Fillers & Color Paste | Uniform consistency; reduces mixing errors. |
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
| Parameter | Value |
|---|---|
| Epoxy Resin | LW-8128A (100 pbw) |
| Curing Agent | LH-8116 (20–25 pbw) |
| Color Paste | LC Series (1 pbw, optional) |
| Viscosity | Paste Consistency (25°C) |
| Pot Life | 40–60 minutes (25°C) |
| Cure Time | 24–48 hours (25°C) |
| Hardness (Shore D) | ≥85 |
| Certification | UL 94 V-0 Flame Rating |
Mixing: Blend LW-8128A resin and LH-8116 hardener at 100:22.5 pbw (default ratio). Add LC-series color paste if required.
Degassing: Vacuum degas mixture (recommended for bubble-free clarity).
Pouring: Hand-pour or gravity-cast over components.
Curing: Cure 24h at 25°C (accelerated curing at 60°C optional).
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.
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Example application image
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2008
Total Annual:
15000000-25000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Shanghai Wenyou Industry Co., Ltd.mainly engaged in the advanced materialsof MV and HV insulation products for indoorand outdoor use, both suitable for APG andvacuum casting. Our wide range of products includes epoxy resin, flame retardant resin, curing agents, outdoor modifiers, toughe... Shanghai Wenyou Industry Co., Ltd.mainly engaged in the advanced materialsof MV and HV insulation products for indoorand outdoor use, both suitable for APG andvacuum casting. Our wide range of products includes epoxy resin, flame retardant resin, curing agents, outdoor modifiers, toughe...
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