Lubrizol ISOPLAST® Engineering Thermoplastic Polyurethane (ETPU)
ISOPLAST® is Lubrizol’s engineering-grade thermoplastic polyurethane (ETPU), combining the high strength and dimensional stability of amorphous resins with the chemical resistance and processability of semi-crystalline resins.
Product Types
Impact-resistant grades
High-transparency grades
Glass fiber reinforced grades
Glass fiber–filled grades are well known for excellent transparency and high heat resistance, and are widely used in pneumatic tool components and truck oil filter bowls for leading global brands.
Key Advantages
Impact-resistant grades provide exceptionally high real-world hardness, ideal for components subject to frequent and severe impact.
Transparent grades support injection molding, extrusion, and blow molding, balancing appearance and mechanical performance.
Glass fiber reinforced grades maintain good flow and processing efficiency even at up to 60% fiber loading, offering a high-strength, cost-effective engineering plastic solution.
ISOPLAST® Processing Guidelines
Reduce shear and excessive heat
Use low back pressure
Use low injection speed
Shot size ≥ 25% of barrel capacity
Recommended compression ratio: 2.0:1–2.5:1
For long glass fiber grades, use a reverse barrel temperature profile
301
Features: Standard transparent grade with good mechanical strength and moldability
Applications: Transparent protective covers, transparent housings, window components, transparent decorative panels