
Lubrizol
Estane® 6-BK-20 TPU MB
Estane 6-BK-20 TPU MB is an aromatic polyester-based thermoplastic polyurethane (TPU) black masterbatch designed for coloring TPU systems. This concentrate provides deep black pigmentation combined with excellent heat and light resistance. It is supplied in pellet form and is recommended for use at 1–2% addition levels depending on the desired shade intensity. ESTANE 6-BK-20 TPU MB offers reliable dispersion and compatibility within TPU formulations while maintaining the mechanical performance of the base polymer.
Key Features:
- Aromatic polyester-based TPU black masterbatch
- Recommended use level: 1–2%
- Excellent heat resistance (up to 240°C)
- High light resistance (Blue Wool Scale 7–8)
- Pellet form for easy dosing
- Specific gravity: 1.34 g/cm³
Processing Form:
- Injection Molding (as additive)
- Extrusion (as additive)
- Compounding (as additive)
Processing Notes:
Estane 6-BK-20 TPU MB is intended to be blended with compatible TPU base resins. Recommended dosage is 1–2% depending on target color intensity and performance requirements. Processing conditions should follow the guidelines for the base TPU resin being used. For detailed processing guidance, refer to Lubrizol Advanced Materials processing guides.
Purpose:
Heat & Light Resistance
Application:
Black coloration additive
Delivery Form:
Pellets
Key Sustainability Features of Estane TPU
Bio-Based Content
The Estane ECO TPU series incorporates renewable materials, with bio-based content ranging from 20% to 69%, certified according to ASTM D6866.
Biomass Balance Approach
The Estane RNW TPU line utilizes mass-balanced biomass feedstocks, reducing reliance on fossil-based sources while maintaining the quality and performance of standard petroleum-based resins.
Reduced Carbon Footprint
Implementing sustainable feedstocks in Estane RNW TPU products has achieved up to a 59% reduction in product carbon footprint, contributing to lower greenhouse gas emissions.
Performance Consistency
TPUs deliver the same high-quality performance as traditional TPUs, ensuring that sustainability enhancements do not compromise material integrity.





