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Product
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WANNATE® PM-8223
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Appearance
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Brown liquid
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|---|---|
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Isocyanate equivalent weight
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129.2
|
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NCO content，％
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32.5
|
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Viscosity at 25℃，mPa.s
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30
|
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Specific gravity at 25℃
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1.22
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|
Acidity (as HCL) ，%
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＜0.05
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|
Flash point，℃
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＞170
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*These values provide general information and are not part of the product specification.
WANNATE® PM-8223 is a mixture of diphenylmethane diisocyanate and polyphenylmethane polyisocyanate. It is suitable for production of high resilience foam,sound insulation foam.
210 liter iron drums, 250kg/dru
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.
Under recommended storage conditions, the shelf life of WANNATE® PM-8223 is 9 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.
Date of first issue: Aug 26 ,2015
Date of 1 st revise: May 14 ,2017 Reason for revision : Unified the template of TDS
Address: Wanhua Chemical Group Co., Ltd.
No.17,Tianshan Rd,YEDA,Yantai,264006,China
Customer service: Tel: +86 (535) 3388000
Fax: +86 (535) 683 7242
Web-site: http://www.whchem.com
The information provided here is for reference only. The specification will be provided in the quality certificate or in the contract. It is the user’s responsibility to test the material and its suitability for a process. We have no control over what another party does with the material and we cannot take any responsibility for another party’s action.
Nor will we be responsible for any indirect damages while using our products. The user is welcome to contact our customer and technical service center with questions on our products.