Shanghai Wenyou Industry Co., Ltd.
Vision: More Safer,More environmentally friendly,More efficient Mission: Based on insulating materials ,Serving global electricity Service concept: Only for customet value added We are not afraid of
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UL-Certified | Pre-Mixed Fillers | Superior Dielectric Strength
Engineered for outdoor electrical insulation in Current Transformers (CT) and Potential Transformers (PT), this modified BPA epoxy system delivers crack-resistant encapsulation for 10-35kV terminal posts, bushings, and transformer components. With pre-mixed fillers in both resin (LW-9229A) and hardener (LW-9229B), it ensures consistent thermal shock resistance and long-term durability in harsh environments.
Crack Resistance: Withstands thermal cycling for outdoor applications.
High Dielectric Strength: Critical for 10-35kV insulation systems.
Pre-Mixed Fillers: Simplified processing, no weighing errors.
Room Temperature Cure: Energy-efficient transformer manufacturing.
Moisture & Chemical Resistance: Protects CT/PT units from environmental degradation.
Ideal for:
10-35kV sealed terminal posts
CT/PT transformer potting & coil encapsulation
Outdoor bushings, insulators, switchgear
High-voltage electrical insulation components
| Method | Benefit |
|---|---|
| Vacuum Gravity Casting | Bubble-free encapsulation for complex geometries. |
| Automatic Pressure Gelation (APG) | High-yield production of crack-resistant parts. |
| Property | Value/Description |
|---|---|
| Filler Status | Pre-mixed in resin & hardener |
| Dielectric Strength | >22 kV/mm (ASTM D149) |
| Thermal Shock Resistance | Excellent (1,000+ cycles, IEC 60216) |
| Crack Resistance | Optimized for outdoor exposure |
| Viscosity | Slurry liquid for deep gap filling |
| Certification | UL 94 V-0 (Flame Retardant) |
| Component | Product | Proportion |
|---|---|---|
| Epoxy Resin | LW-9229A | 100 pbw |
| Hardener | LW-9229B | 100 pbw |
| Colorant | LC-Series* | 1 pbw |
| *Color paste optional for UV-stable pigmentation. |
This electrical-grade epoxy combines BPA’s structural strength with pre-mixed fillers for unmatched crack resistance in outdoor applications. Its slurry viscosity ensures perfect gap filling for CT/PT windings, while room temperature curing reduces production costs. Ideal for 10-35kV terminal posts and transformer encapsulation, it delivers lifelong moisture resistance and dielectric performance under thermal cycling.
Advantage
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