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WANNATE 8023
1. Application
Modified MDI, is a mixture of polyol-modified diphenylmethane diisocyanate and
polyphenylmethane polyisocyanate. It is a binder especially designed for the production of
rebounded flexible foam.
2. Typical physical and chemical properties
| Name | WANNATE 8023 |
| Appearance Liquid | Brown Liquid |
|
Isocyanate equivalent weight |
230 |
|
NCO content,％ |
18.3 |
|
Viscosity at 25℃, mPa.s |
1500 |
|
Specific gravity at 25℃ |
1.14 |
|
Acidity (as HCL) , % |
＜0.05 |
|
Flash point,℃ |
＞170 |
*These values provide general information and are not part of the product specification.
3. Package
200 liter iron drums, 225± 1kg/drum
4. Storage
Since WANNATE 8023 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 8023 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 8023 is six 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.