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Araldite® CW 1305 Epoxy Encapsulant

อีพ็อกซี่ อราลไดท์
December 08, 2025
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Brief: This video explains the main functions and practical uses of the Araldite® CW 1305 Epoxy Encapsulant System in a clear, step-by-step format. You will see a demonstration of its high thermal conductivity and explosion-proof properties, learn about its application in electrical equipment like transformers and capacitors, and understand its compliance with UL 94 V-0 and EN 45545-2 railway fire standards.
Related Product Features:
  • High thermal conductivity of 0.88 W/mK with a UL rating up to 180℃ for effective heat management.
  • Explosion-proof design certified UL 94 V-0 (3.0mm) and compliant with EN 45545-2 railway fire standard (R23 HL2/R24 HL3).
  • Excellent dielectric strength of 27 kV/mm and volume resistivity of 10¹⁴ Ω*cm for reliable electrical insulation.
  • Low water absorption of 0.04% (23℃/24h) and high Shore D hardness of 88 for environmental resistance.
  • Optimized viscosity of 3,500 mPa*s at 40℃ suitable for vacuum casting applications.
  • Solvent-free epoxy system with inorganic fillers, curable at room temperature or elevated temperatures.
  • Used in explosion-proof transformers, rail transit capacitors, and marine filters for safety-critical applications.
  • Proven in industry cases like Siemens Sitras 8 signaling devices for capacitor encapsulation from -40℃ to 155℃.
คำถามที่พบบ่อย:
  • What is the thermal conductivity of Araldite® CW 1305 Epoxy Encapsulant?
    The Araldite® CW 1305 Epoxy Encapsulant has a high thermal conductivity of 0.88 W/mK, which helps in efficient heat dissipation for explosion-proof electrical equipment.
  • Is this epoxy system certified for flame safety?
    Yes, it is certified UL 94 V-0 (3.0mm) and complies with EN 45545-2 railway fire standard (R24 HL3), with a Limiting Oxygen Index (LOI) of 36.1% for enhanced flame resistance.
  • What are the typical applications for this epoxy encapsulant?
    It is used in explosion-proof transformers for mining equipment, rail transit capacitors meeting EN 45545-2 standards, and marine filters, as demonstrated in Siemens Sitras 8 signaling devices.
  • How is the Araldite® CW 1305 system mixed and cured?
    The system consists of Araldite® CW 1305 resin and Aradur® HY 1300 hardener mixed at a 100:11 weight ratio, and it can be cured at room temperature or elevated temperatures with a pot life of 37 minutes at 40℃.
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