TPU Covestro 3660DU

TPU Covestro 3660DU is high‑hardness polyester‑based TPU with good transparency and excellent mechanical properties. Its abrasion resistance and tear strength make it well‑suited for stressed components requiring visual clarity.

Main Applications

Sports shoe soles, non‑reinforced hoses, profiles.

Physical Properties

Property Category	Item	Test Method	Condition	Typical Data	Unit
Physical Properties	Density	ISO 1183	23℃	1.22‑1.23	g/cm³
	Shore A Hardness	ISO 868 / DIN ISO 7619‑1	1 s	98	Shore A
	Shore D Hardness	DIN ISO 7619‑1	1 s	60	Shore D
Mechanical Properties	Tensile strength at break	ISO 527 / DIN 53504	200 mm/min	53.7‑60	MPa
	Elongation at break	ISO 527 / DIN 53504	200 mm/min	318‑400	%
	Tear strength	ISO 34‑1	500 mm/min	170	kN/m
	Abrasion loss	ISO 4649‑A	—	23‑50	mm³
	Compression set	ISO 815‑A	70℃,24h	45	%
	Compression set	ISO 815	23℃,72h	24	%
	Rebound resilience	ISO 4662	—	31	%
Thermal Properties	Tensile storage modulus	ISO 6721‑1,‑4	‑20℃	2610	MPa
	Tensile storage modulus	ISO 6721‑1,‑4	20℃	444	MPa
	Tensile storage modulus	ISO 6721‑1,‑4	60℃	129	MPa

Processing Parameters

Process	Parameter	Suggested Value	Unit
Pre‑drying	Max drying temperature	110	℃
Extrusion molding	Melt temperature	190‑210	℃
Injection molding	Melt temperature	215‑235	℃
	Mold temperature	20‑40	℃

Note: All information above is for reference only!