Custom engineered for high mechanical strength, elevated temperature resistance, and critical electrical insulation in dry-type transformers, switchgear, and utility grid applications.
Unlike standard polyester or vinyl ester resins, UNICOMPOSITE’s epoxy pultrusion products utilize premium epoxy resin combined with E-glass roving and continuous filament mat (CFM). Manufactured via a specialized high-pressure pultrusion process, this advanced composite matrix delivers top-tier mechanical rigidity, exceptional dielectric integrity, and ultra-low water absorption (< 0.05%)—making it the ideal high-performance alternative to traditional metals and lower-grade laminates in demanding electrical environments.
High dielectric strength & ultra-low partial discharge, purpose-built for high-voltage utility grids and dry-type transformers.
Tensile & flexural strength far exceeding standard fiberglass profiles, paired with outstanding structural fatigue resistance.
Available up to Class H thermal classification, maintaining dimensional stability and insulation performance under extreme heat.
< 0.05% water absorption ensuring zero leakage current, reliable dielectric barrier, and corrosion resistance in humid conditions.
G10/G11 grade composite tubes engineered for lab test devices, precision insulators, and whip antenna cores compatible with OFC wire integration.
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Precision-engineered step blocks, lead supports, and dogbones with high dielectric strength and heat rating. Premium alternative to 3240 epoxy laminates.
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Heavy-duty structural shapes including I-beams, L-angles, and C-channels, fully supported with custom in-house precision CNC machining.
Request Specs →| No. | Technical Property / Test Item | Units | Standard Requirement |
|---|---|---|---|
| 01 | Density (20°C ± 2°C) | g/cm³ | ≥ 2.1 |
| 02 | Water Absorption (23°C ± 1°C) | % | ≤ 0.05 |
| 03 | Tensile Strength | MPa | ≥ 1500 |
| 04 | Siphon Test | Min | ≥ 15 |
| 05 | Water Diffusion Test | mA | ≤ 0.5 |
| 06 | Volume Resistivity | Ω·m | ≥ 10¹⁰ |
| 07 | Stress Corrosion Resistance | h | ≥ 96 |
| 08 | Power Frequency Voltage | kV | ≥ 50 |
| 09 | Lightning Impulse Withstand Voltage (100kV) | Impulses | ≥ 5 |
| 10 | Bending Failure Load Test at Elevated Temp (143°C ± 1°C) | % | ≥ 6 |
| 11 | Flame Retardant (UL94) | – | UL94 V-0 |
Dry-type transformers, switchgears, busbar supports, high-voltage insulators, and composite utility crossarms requiring certified dielectric strength.
High-rigidity structural supports for laboratory test equipment, magnetic fusion research facilities, MRI systems, and precision test rigs.
High-strength, non-conductive, and corrosion-resistant profiles delivering tight dimensional tolerances under extreme temperature and chemical exposure.
From custom die tooling design to secondary precision CNC machining (milling, drilling, chamfering). 100% manufactured at our facility in China for total dimensional quality control.
Decades of export experience serving North American and European industrial leaders. Full compliance with international testing benchmarks, including ASTM, EN, and UL94 V-0.
Direct engineer-to-engineer communication. We provide complete composite material data sheets, third-party lab test reports, and structural calculations to derisk your design.
Yes, we can design and open custom dies for specific structural profiles based on your CAD drawings.
MOQs depend on the specific profile size and mold requirements. Please contact our sales team for a precise evaluation.
Absolutely. We offer comprehensive in-house CNC machining services, cutting the profiles to your exact assembly requirements before shipment.
info@unicomposite.com
