Hangzhou Leap Chem Co., Ltd. is one of the most professional manufacturers and suppliers of polymethylene polyphenyl polyisocyanate丨cas 9016-87-9 in China. Welcome to wholesale bulk high quality chemical products at competitive price from our factory. If you have any enquiry about custom service, please feel free to email us.
Specifications
| Appearance | Brown liquid |
| Viscosity (25°C) | 150 to 250 mPa·s |
| NCO | 30.5% to 32.0% |
| Hydrolysable Chlorides | 0.20% max |
| Acid | 0.03% max |
| Density (25°C) | 1.220 to 1.250 g/cm³ |
Transport Information
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Parameter |
Specification |
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UN Number |
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Class |
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Packing Group |
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H.S. Code |
3909500000302 |
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Stability & Reactivity |
The product is chemically stable under standard ambient conditions. |
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Storage |
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Handle and open container with care. Moisture sensitive. |
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Condition to Avoid |
Exposure to air. Exposure to moisture |
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Package |
Manufacturing Information
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Parameter |
Specification |
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Capacity |
10MT/month |
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Frequency |
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Main Export Countries |
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Capacity/Batch |
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Experience |
Production since 2018 |
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Stock |
Applications
Polymethylene polyphenyl polyisocyanate (commonly known as PMDI) is a highly reactive polyisocyanate widely used in the production of polyurethane materials. It serves as a primary crosslinking agent in the manufacture of rigid and flexible foams, coatings, adhesives, sealants, and elastomers. In construction and insulation, PMDI is used for rigid foam panels and spray foams due to its excellent thermal insulation properties. It is also applied in automotive, furniture, and packaging industries to produce lightweight, durable, and high-performance polyurethane products. Additionally, PMDI is utilized in composite materials and specialty coatings where strong adhesion and chemical resistance are required.
Benefits
The benefits of PMDI derive from its high reactivity, versatility, and ability to form strong polyurethane networks. It enables rapid curing and efficient crosslinking, producing materials with excellent mechanical strength, chemical resistance, and thermal stability. PMDI allows for fine-tuning of foam density, hardness, and elasticity, supporting customized formulations for diverse applications. Its multifunctionality and compatibility with various polyols make it suitable for large-scale industrial production and high-performance material design. Additionally, PMDI contributes to lightweight and energy-efficient products, especially in insulation and automotive applications.
Conclusion
Polymethylene polyphenyl polyisocyanate is a versatile polyisocyanate used extensively in polyurethane foams, coatings, adhesives, and elastomers. Its benefits include high reactivity, strong mechanical and thermal properties, formulation flexibility, and industrial scalability. By enabling the production of durable, lightweight, and high-performance polyurethane products, PMDI plays a critical role in construction, automotive, and specialty material applications.
