T3/T4
DELTAPLAST masterbatches for T3 and T4 automotive cables are designed for highperformance insulation applications where high thermal stability, ageing resistance and reliable behaviour under extreme conditions are required.
Systems based on PP, PE, HFFR/LSFR and XLPE are widely used in automotive cables exposed to high temperatures, particularly in the engine compartment. In these applications, it is essential that the masterbatch does not affect compound performance during demanding processes such as high-speed extrusion or thermal validation testing.
DELTAPLAST solutions ensure controlled pigment dispersion and stable colour performance even after prolonged thermal ageing, meeting the requirements of T3 and T4 thermal classes according to ISO 6722.
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DELTAPLAST T3/T4 masterbatches have been specifically developed for high-temperature automotive applications.
Key features include:
- Colour stability at elevated temperatures: Formulations ensure that colour remains stable under the demanding thermal conditions of T3
and T4 classes. - Excellent dispersion in PP and PE systems: Provides uniform pigment distribution, ensuring consistent colour in cable insulation.
- Optimized for HFFR/LSFR compounds: Masterbatches are adapted for highly filled systems, maintaining stability during processing.
- Compatibility with XLPE systems: Solutions are designed to maintain stable performance even after e-beam crosslinking,
without affecting material properties. - Low dosage levels: High tint strength allows reduced masterbatch usage, optimizing the process.
According to the technical bulletin, these masterbatches are designed for cables operating in temperature ranges of -40°C to +125°C (T3) and up to +150°C (T4), typically used in engine compartment areas or oil circuit systems.
Additionally, they offer excellent dispersion, high thermal stability and stable performance in high-speed production, making them suitable for demanding industrial processes.
Applications
DELTAPLAST T3/T4 masterbatches are designed for automotive applications where thermal resistance and material reliability are critical.
Typical applications:
- Engine compartment cables: Cables used in engine areas exposed to high temperatures.
- HFFR/LSFR automotive cables: Automotive cables based on halogen-free flame-retardant compounds.
- XLPE T4 applications: High thermal demand applications such as oil circuits or areas close to the engine.
These applications require materials capable of maintaining electrical properties, colour stability and extreme thermal resistance.
Technical FAQs
What is the difference between T3 and T4?
T3 supports up to 125°C, while T4 reaches up to 150°C in continuous operation.
Are these masterbatches compatible with crosslinked XLPE?
Yes. They are designed to maintain performance after crosslinking processes such as e-beam.
Can they be used in HFFR/LSFR compounds?
Yes. Formulations are optimized for highly filled systems.
Does the masterbatch affect cable properties?
No. It is formulated to preserve the electrical and mechanical properties of the compound.