UL83 105℃ Eco-friendly Flame Retardant PVC Insulation Material (Compatible with Nylon Sheath)

YHS-UL83-105

UL 83 compliant thermoplastic PVC insulation for THHN / THWN‑2 / THW building wires. It retains stable mechanical properties after thermal ageing, withstands -25°C cold bend and heat shock with controlled thermal deformation. It delivers consistent long-term insulation resistance under ambient and 90°C water immersion, low permittivity change in humid environments. It offers conductor corrosion resistance, durable ink marking and standard vertical flame retardancy; VW‑1 grade is optional.

✦ Post-ageing mechanical stability ✦ anti-conductor corrosion ✦ durable marking ✦ -25°C cold bend & heat shock resistant ✦ stable wet & high-temperature insulation ✦ vertical flame retardant (VW‑1 optional)

Technical Data

Technical Specifications

Typical physical property data, subject to batch test reports.

Properties	Unit	Index	Typical Value	Test method
Tensile Strength	MPa	≥15	≥24	GB/T 1040-2006
Elongation at break	%	≥150	281	GB/T 1040-2006
Heat ageing	-	≥-	-	YHS-UL83-105-2008
Retention at tensile strength	%	≥75	113	-
Retention at elongation	%	≥65	84	-
Thermal deformation	%	≤30	21	GB/T 8815-2008
Low temperature brittleness	℃	-20	Pass	GB/T 5470-2008
Volume resistivity at 20℃	Ω·m	≥1.0×10¹²	1.2×10¹³	GB/T 8815-2008
Dielectric strength	MV/m	≥20	25	GB/T 1408.1-2006
Oxygen index	%	≥26	27	GB/T 2406-1993
Density	g/cm³	-	1.33	GB/T 1033.1-2008
Shore hardness	ShoreA	-	90	GB/T 2411-2008
Eco-friendly requirements	-	RoHS&REACH requirements	Pass	-

Processing Guide

Recommended Processing Parameters

This product can be processed on extruder with a diameter≥20. The extrusion processing performance is good.

Extrusion temperature for reference: Zone1 140 Zone2 170 Zone3 180 Zone4 185 Tool 185 Head 185

⚠️ It can be adjusted according to the state of plasticizing.