Wanhua Wannate 8223 Modified MDI Used for Furniture, Toy, Viscoelastic Foam

1. Application

WANNATE PM-8223 is a mixture of polyol-modified diphenylmethane diisocyanateand and polyphenylmethane polyisocyanate. It is a brown liquid at room temperature. It is used in the production of furniture, toy and automotive industries, especially suitable for viscoelastic foam.

2. Typical Physical and Chemical Properties

3. Package(s)

250kg/drum

4. Storage

Since WANNATE PM-8223 is a reactive chemical, reaction with atmospheric moisture happens easily and leads to the formation of insoluble ureas and carbon dioxide gas, which can result in pressure build-up in closed containers and viscosity increase of the product. Containers must therefore be absolutely dry and carefully sealed after congested with nitrogen.
Containers of WANNATE PM-8223 should be kept properly closed and stored indoors at ambient temperatures (15-25℃) in a well-ventilated area. Storage at low temperatures (below 10℃) may lead to some crystallization; this material must, therefore, be protected from frost. If crystallization does occur, the material should be heated to 70-80℃ to melt it out, strictly prohibit to heat over at local part and should then be thoroughly agitated before use.

5. Shelf Life

Under recommended storage conditions, the shelf life of WANNATE PM-8223 is nine months. If the production is overdue, but it’s main physical and chemical properties in the guide line, may not effect on it’s using properties.

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