Item	Content
Model	STCP52502
Product Type	125°C Low-Halogen Flame-Retardant PP (FRPP) Insulation Compound
Material Type	Thermoplastic Flame-Retardant Polypropylene Cable Compound
Main Applications	125°C Automotive High-Voltage Wires and Small-Size Automotive Cable Insulation
Flame Performance	UL 94 V-0 at 4.0 mm
Key Characteristics	Heat Resistance, Oil Resistance, High Elongation, Flame Retardancy
Processing	Thermoplastic Extrusion
Customization	Formulation / Color / Technical Support Available

Product Overview

STCP52502 is a thermoplastic low-halogen flame-retardant polypropylene (FRPP) insulation compound developed for 125°C automotive high-voltage cable applications. According to the supplied product catalogue, the material provides good heat resistance and oil resistance and is specifically designed for small-size 125°C automotive cable insulation.

STCP52502 combines flame-retardant performance with flexible mechanical properties and thermoplastic processability. Typical properties include 16 MPa tensile strength, 650% elongation at break, UL 94 V-0 at 4.0 mm, Shore D 55 hardness and volume resistivity of 3.3 × 10¹⁶ Ω·cm.

Key Features

125°C Low-Halogen FRPP Insulation Compound
Designed for Automotive High-Voltage Cables
Suitable for Small-Size 125°C Automotive Wires
Good Heat Resistance
Good Oil Resistance
UL 94 V-0 at 4.0 mm
High Elongation at Break: 650%

Technical Data Sheet

Test Item	STCP52502	Test Method
Density, g/cm³	1.15	ASTM D792
Melt Index, g/10min	11	ASTM D1238
Tensile Strength, MPa	16	ASTM D412
Elongation at Break, %	650	ASTM D412
Heat Impact @ 130°C	No Crack	IEC 60811-3-1
Low-Temperature Impact @ -40°C	No Crack	IEC 60811-1-4
Heat Aging	158°C × 168 h	ASTM D573
Tensile Strength after Aging, MPa	15	ASTM D573
Elongation after Aging, %	590	ASTM D573
Flammability (4.0 mm)	V-0	UL 94
Oxygen Index, %	23	GB/T 2406.1-2008
Hardness, Shore D	55	ASTM D2240
Volume Resistivity, Ω·cm	3.3 × 10¹⁶	IEC 60093

Recommended Extrusion Process Temperature

Zone	Zone 1	Zone 2	Zone 3	Zone 4	Neck	Head	Die
Temperature	170±10°C	180±10°C	190±10°C	200±10°C	200±10°C	190±10°C	190±10°C

STCP52502 is a thermoplastic FRPP cable compound intended for extrusion processing. The recommended extrusion temperature profile from the supplied product catalogue is shown below.

The actual temperature setting should be adjusted according to the drawing speed, using the surface smoothness of the finished wire or cable as the reference.

For special cable structures, extrusion equipment or processing conditions, please contact our technical team for processing guidance.

Applications

Application	Material Role	Application Requirements	Suitability
125°C Automotive High-Voltage Cable	FRPP Insulation	Heat resistance, oil resistance and flame retardancy	Recommended
Small-Size Automotive Wire	FRPP Insulation	Compact cable structure, thermal performance and flexibility	Recommended
Automotive Cable Insulation	Low-Halogen FRPP	Mechanical performance and flame resistance	Recommended
High-Temperature Automotive Wire	FRPP Insulation	125°C-class application requirements	Application-dependent
Custom Automotive Cable	Customized FRPP Insulation	Formulation, color and processing matching	Available

OEM & Customization

Customized Formulations
OEM Manufacturing
Color Matching
Technical Support
Small Batch
Fast Sampling
Free Samples

FAQ

1. What is High-Voltage FRPP Cable Compound-STCP52502?

STCP52502 is a thermoplastic low-halogen flame-retardant polypropylene (FRPP) insulation compound for 125°C automotive high-voltage cable applications.

2. What applications is STCP52502 designed for?

The supplied catalogue states that STCP52502 is specially designed for small-size 125°C automotive cable insulation.

3. What are the key advantages of STCP52502?

The catalogue specifically highlights good heat resistance and oil resistance.

4. What flame-retardant performance does STCP52502 provide?

The supplied technical data lists UL 94 V-0 at a specimen thickness of 4.0 mm and an oxygen index of 23%.

5. What are the main mechanical properties?

Typical values include 16 MPa tensile strength, 650% elongation at break and Shore D hardness of 55.

6. What heat-aging performance is listed?

The technical data lists heat aging at 158°C × 168 h according to ASTM D573, with typical post-aging tensile strength of 15 MPa and elongation of 590%.

7. How does STCP52502 perform in heat and low-temperature impact tests?

The supplied data shows no cracking at 130°C heat impact and no cracking at -40°C low-temperature impact.

8. What is the volume resistivity of STCP52502?

The typical volume resistivity is 3.3 × 10¹⁶ Ω·cm according to IEC 60093.

9. What is the recommended extrusion temperature profile?

Zone 1: 170±10°C; Zone 2: 180±10°C; Zone 3: 190±10°C; Zone 4: 200±10°C; Neck: 200±10°C; Head: 190±10°C; Die: 190±10°C.

10. Can STCP52502 be customized?

Yes. Formulation matching, color matching, technical support and sample evaluation can be provided according to the customer's cable structure and processing requirements.

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