WANNATE MDI-50F

1. Application

WANNATE® MDI-50F is a mixture of 2,4’ and 4,4’ diphenylmethane diisocyanates, or called 2,4’ rich isocyanate. It is a clear, colorless to pale yellow liquid at ambient temperatures.

Due to the different reactivity between 2,4’ and 4,4’ MDI, WANNATE® MDI 5OF product provides better flowability for the production of injection molding. WANNATE® MDI 50F series product can be widely used in the production of various PU elastomers, adhesives, paint and automotive parts. It also can be used as a substitute for TDI in the production of flexible PU foam, which will reduce productive cost and environmental pollution and improve handling conditions.

2. Typical Physical and Chemical Properties

3. Package(s)

210L iron drums, 235kg/drum

4. Storage

Container: Freshly manufactured WANNATE* MDI 50F series product_is a clear liquid at room temperature. It tends to turn yellow upon exposure to air and light. As WANNATE® MDI 50F scries product is a reactive chemical, reaction with atmospheric moisture occurs easily and leads to the formation of insoluble urea and CO2 gas which can lead to pressure build-up in closed containers and increases in the viscosity of the product. Containers must therefore be absolutely dry and carefully sealed after congested with dry nitrogen.

Temperature: Extended storage will result in insoluble dimer. It is best to store at 25'C-35”C.

5. Recommended Melting Conditions

Crystallization will occur if WANNATE®MDI 50F series productjs stored below 17“C. To

minimize the formation dimer, it is recommended to melt solid WANNATE®MDI_50F series product quickly and evenly, such as using a forced air oven equipped with rollers. Do not exceed 50°C. Make sure the heating is even and there is no leakage during heating. To avoid localized heating, electrical heating is not recommended. Note that the product will decompose and give off gas above 230°C. Water heating or steam heating is not recommended either since water will react w ith MDI if there is any leakage. Only when the container is intact could water be used to melt the product. The container should be wiped dry when done.

6. Shelf Life

Under recommended storage conditions, WANN ATE* MDI 50F series product has a shelf life of 3 months.

Qingdao Exceed Fine Chemicals Co., Ltd is a high-tech enterprise that integrates manufacturing and trading. We specialize in the production of polyurethane-based products.

Our company is dedicated to investing in research and development of cutting-edge products, collaborating with leading Chinese universities and institutions. We have successfully developed a heat-vulcanization, environmentally friendly bonding adhesive that rivals the quality of world-renowned brands like Lord and Dow.

At Exceed, we believe in the power of science

Qingdao Exceed Fine Chemicals boasts a team of over 30 skilled technicians, supported by advanced manufacturing equipment and robust production processes. We maintain an independent R&D institute and foster strong collaborations with leading universities and research institutions to continuously enhance our production processes, product quality, and performance.

With decades of dedicated efforts, we have successfully exported our products to markets across the globe, including Europe, Asia, North America, South America, Oceania, and Africa.

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 Furthermore, we employ a dedicated team of quality control (QC) professionals with expertise in the field of chemicals. This rigorous quality control ensures consistent and reliable product quality for our valued customers.

Currently, we achieve annual export sales exceeding USD 30 million to over 30 countries worldwide, encompassing a diverse product range including polyurethane chemicals, heat-vulcanization environmental friendly bonding adhesive etc.

We understand that customers prioritize competitive pricing, exceptional quality, and consistent product availability. We firmly believe that Exceedchem is the ideal partner to fulfill your specific needs.

As a trusted purchasing agent for clients worldwide, we leverage our extensive experience to source high-quality products at competitive prices. Our primary objective is to deliver the most cost-effective solutions while maintaining the highest standards of quality.