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Modified MDI Wannate 8221 For High Resilience Foam Sound Insulation Foam
Modified MDI Wannate 8221 For High Resilience Foam Sound Insulation Foam
Specifications
Brand Name :
Wanhua
Model Number :
Wannate 8221
Certification :
ISO9001:2018
Place of Origin :
China
MOQ :
20mt/20ft
Price :
FOB Qingdao usd2.3/kg
Payment Terms :
L/C,T/T
Supply Ability :
3000mt/month
Delivery Time :
14 work days
Packaging Details :
250kg/drum
Product Name :
Modified MDI Wannate 8221
Appearance :
Brown Liquid
NCO content :
32.2%
Application :
Used for production of high resilience foam,sound insulation foam.
Packing :
250kg/drum
Shelf life :
6 months
Description

Modified MDI Wannate 8221 Used for High Resilience Foam, Sound Insulation Foam

1. Application

WANNATE 8221 is a mixture of diphenylmethane diisocyanate and polyphenylmethane polyisocyanate. It is suitable for production of high resilience foam, sound insulation foam.


2. Typical Physical and Chemical Properties

Test Item(s) Specification(s)
Appearance Brown Liquid
Isocyanate equivalent weight 130.2
Viscosity at 25℃, mPa·s 35
NCO Content, % 32.2
Specific gravity at 25℃ 1.22
Acidity (as HCL) ,% ＜0.05
Flash point,℃ ＞170


3. Package(s)


250kg/drum

4. Storage

WANNATE 8221 is a reactive chemical that readily reacts with atmospheric moisture, leading to the formation of insoluble ureas and carbon dioxide gas. This reaction can cause pressure build-up in sealed containers and an increase in the product's viscosity. Therefore, containers must be completely dry and tightly sealed under a nitrogen blanket after use.

WANNATE 8221 should be stored in tightly closed containers indoors at ambient temperatures (15–25 °C) in a well-ventilated area. Storage at low temperatures (below 10 °C) may result in crystallization. The material must be protected from frost. If crystallization occurs, it should be melted by heating to 70–80 °C, ensuring that localized overheating is strictly avoided. After melting, the material should be thoroughly agitated before use.


5. Shelf Life

Under recommended storage conditions, the shelf life of WANNATE 8221 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.

Modified MDI Wannate 8221 For High Resilience Foam Sound Insulation Foam

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Modified MDI Wannate 8221 For High Resilience Foam Sound Insulation Foam

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Product Detail
Brand Name :
Wanhua
Model Number :
Wannate 8221
Certification :
ISO9001:2018
Place of Origin :
China
MOQ :
20mt/20ft
Price :
FOB Qingdao usd2.3/kg
Contact Supplier
Modified MDI Wannate 8221 For High Resilience Foam Sound Insulation Foam

Qingdao Exceed Fine Chemicals Co.,Ltd

Verified Supplier
7 Years
shandong, qingdao
Since 2013
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company
Main Products :
TDI MDI Polyurethane, TDI Based Polyurethane, MDI Based Polyurethane
Total Annual :
10000000-20000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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