1.Product Overview
Foam-grade Polyether Polyol is a dedicated polyether raw material independently developed and produced by Finemax Chemical for polyurethane foam manufacturing. Different from CASE-grade polyols, this series features excellent foaming activity, uniform bubble opening, good fluidity, and stable foaming reaction. It perfectly matches TDI and MDI systems, delivering stable foam molding, uniform cell structure, high resilience, and low shrinkage. Widely applicable to flexible foam for daily use and rigid foam for thermal insulation, it is one of the most essential core materials in the PU foam industry.
2.Basic Product Information
Product Name: Foam Grade Polyether Polyol
CAS No.: 9003-11-6, 25322-69-4
Molecular Structure:

Grade Type: Flexible Foam Grade / Rigid Foam Grade
3.Typical Specifications
Test Item | Standard Specification |
|---|---|
Appearance | Colorless to light yellow transparent viscous liquid |
Hydroxyl Value (mgKOH/g) | Wide range for flexible & rigid foam customized grades |
Viscosity (25℃, mPa·s) | Moderate viscosity, good fluidity for foaming processing |
Moisture Content | ≤ 0.08% max |
Acid Value | Low acid value for stable curing reaction |
pH Value | 5.0–7.5 |
Foaming Uniformity | Uniform cell opening, no hollow or collapse |
Physical Properties
Foam-grade polyether polyol has moderate viscosity and excellent fluidity, which is conducive to rapid mixing and uniform foaming during production. The product is slightly denser than water and features good solubility in conventional organic solvents. It shows stable physical state at normal temperature, no layering or precipitation, ensuring continuous and stable mass production of PU foam products.
Chemical Properties
This polyether polyol contains highly active terminal hydroxyl groups, which can react rapidly and stably with isocyanate (-NCO). With precisely controlled reaction activity, it achieves balanced foaming and curing speed. It possesses good chemical stability and hydrolytic resistance. The produced foam features stable physical properties, low compression set, and excellent anti-aging performance, not easy to harden, shrink or deform during long-term use.
5.Main Applications


9.Finemax Advantages
Finemax Chemical provides a full range of foam-grade polyether polyols covering flexible foam and rigid foam series. We strictly control batch stability and foaming performance to help foam manufacturers reduce defective rates and stabilize product quality. With reliable supply capacity, flexible customization and professional technical support, we have long-term served global PU foam factories, providing cost-effective and high-quality polyether polyol solutions for foam insulation and cushioning industries.
10.Inquiry & Service
Free Sample Support | Custom Grades Available | Professional Technical Guidance
Contact us to get the latest factory price and technical datasheet.
