Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Lubrizol TPU PC-3555D

Lubrizol TPU PC-3555D is a high-clarity, hydrolysis-resistant thermoplastic polyurethane from Lubrizol’s Estane® TPU series—designed for demanding medical tubing and extrusion applications requiring biocompatibility, flexibility, and sterilization stability.
  • lubrizol tpu pc 3555d_db4eb490
  • lubrizol tpu pc 3555d_db4eb490

Features Of Lubrizol TPU PC-3555D

  1. Excellent melt processability for high-speed extrusion and injection molding

  2. Outstanding low-temperature flexibility down to –40 °C

  3. Good resistance to oils, greases, and non-polar solvents

  4. High abrasion resistance and mechanical toughness

  5. Compatible with polycarbonate (PC) blends for enhanced impact performance

Typical Applications Of Lubrizol TPU PC-3555D

  1. Automotive interior trim components requiring soft-touch feel and durability

  2. Overmolded grips for power tools and hand-held electronics

  3. Flexible connectors and gaskets in industrial equipment

  4. Medical device housings and ergonomic accessories

  5. Consumer appliance seals and protective casings

Specifications Of Lubrizol TPU PC-3555D

Chemical TypeThermoplastic Polyurethane (TPU), Polyester-based
Product FormPellets
AppearanceOff-white to light tan, free-flowing pellets
Primary ApplicationsOvermolding, flexible components, PC/TPU alloys
Key FeaturesLow-temperature flexibility, oil resistance, PC compatibility
BenefitsImproved part toughness, reduced cycle times, enhanced surface aesthetics
Processing MethodInjection molding, extrusion, two-shot molding
Recommended Drying80–90 °C for 2–4 hours prior to processing


Lubrizol TPU PC-3555D – Frequently Asked Questions (FAQ)

Q1: What is the primary function of Lubrizol TPU PC-3555D in thermoplastic polyurethane (TPU) formulations?

A: Lubrizol TPU PC-3555D is a high-performance processing aid designed to improve melt flow, reduce extrusion pressure, and enhance surface finish in TPU compounds—particularly during extrusion and injection molding operations.


Q2: Is Lubrizol TPU PC-3555D compatible with aromatic and aliphatic TPU grades?

A: Yes, PC-3555D demonstrates broad compatibility across both aromatic and aliphatic TPU chemistries, supporting consistent performance in diverse formulation systems without compromising mechanical properties or clarity.


Q3: How should Lubrizol TPU PC-3555D be incorporated into a TPU compound?

A: It is typically added directly to the TPU resin prior to melt processing—via dry blending or side feeding—and disperses readily under standard extrusion conditions. Pre-drying of the additive is not required.


Q4: Does PC-3555D affect the thermal stability or long-term aging behavior of TPU?

A: When used at recommended dosage levels, PC-3555D does not negatively impact thermal stability or accelerate oxidative degradation; it remains inert under typical TPU processing and end-use temperature ranges.



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