Complete Guide to Polyurethane Raw Materials 2026

Comprehensive overview of polyurethane raw material classification, properties and applications including Polyol, Isocyanate and Additives.

Published: January 2026

Complete Guide to Polyurethane Raw Materials 2026

This comprehensive guide covers the classification, properties, applications, and market trends of polyurethane raw materials, including Polyol, Isocyanate (MDI/TDI), and Additives.

1. Polyol

Polyol is one of the key components in polyurethane synthesis. Based on molecular structure, it can be divided into polyether polyol and polyester polyol. Polyether polyol offers excellent hydrolysis resistance and low-temperature flexibility.

2. Isocyanate

MDI and TDI are the most commonly used isocyanate varieties. MDI is suitable for rigid foam and coatings, while TDI is mainly used for flexible foam production.

3. Additives

Catalysts, blowing agents, surfactants and other additives play critical roles in polyurethane formulations, directly affecting processing performance and final properties.

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  • Polyol
  • MDI
  • TDI

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