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Wanhua Wannate 8798 Modified MDI For Polyurethane Gel Elastomers
Wanhua Wannate 8798 Modified MDI For Polyurethane Gel Elastomers
Specifications
Brand Name :
Wanhua
Model Number :
Wannate 8798
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 :
240kg/drum
Product Name :
Modified MDI Wannate 8798
Appearance :
Colorless to pale yellow liquid
NCO content :
4.0 ~5.0%
Application :
Used for polyurethane gel elastomers
Packing :
200kg/drum
Shelf life :
9 months
Description

Wanhua Wannate 8798 Modified MDI Used For Polyurethane Gel Elastomers

1. Application

WANNATE 8798 is a urethane-modified diphenylmethane diisocyanate (MDI). It appears as a colorless to pale yellow liquid at room temperature. Suitable for the production of polyurethane gel elastomers.


2. Typical Physical and Chemical Properties

Test Item(s) Specification(s)
Appearance Colorless to pale yellow liquid
Viscosity (25°C), mPa·s 1900–2900
NCO Content, % 4.0–5.0
Density (25°C), g/cm³ 1.00–1.10


3. Package(s)

210 liter iron drums, 200 kg/drum

4. Storage

WANNATE 8798 is chemically reactive and readily reacts with moisture to form insoluble urea compounds and release carbon dioxide gas, which can cause drum swelling and increased viscosity. Therefore, containers must be kept strictly dry and sealed, and protected with dry nitrogen during storage.

Store WANNATE 8798 at room temperature (15–25°C) in a well-ventilated indoor area under strict sealing conditions. If the storage temperature falls too low (below 10°C), crystallization may occur. Thus, it must be protected from freezing. If crystallization does occur, the material must be promptly melted by heating. Do not heat above 70°C. Localized overheating is strictly prohibited, as decomposition and gas formation may occur above 230°C. It is recommended to use a hot-air oven with a rotating drum device for heating. After heating, the contents must be mixed thoroughly.

Avoid long-term storage above 50°C to prevent the formation of insoluble solids and an increase in viscosity. Under suitable storage conditions, the shelf life is 9 months. Products beyond the stated shelf life that still meet the specified technical indicators are generally not affected in their usability.


5. Shelf Life

The shelf life of WANNATE 8798 is 9 months from the date of production under recommended storage conditions.

Wanhua Wannate 8798 Modified MDI For Polyurethane Gel Elastomers

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Product Detail
Brand Name :
Wanhua
Model Number :
Wannate 8798
Certification :
ISO9001:2018
Place of Origin :
China
MOQ :
20mt/20ft
Price :
FOB Qingdao usd2.3/kg
Contact Supplier
Wanhua Wannate 8798 Modified MDI For Polyurethane Gel Elastomers

Qingdao Exceed Fine Chemicals Co.,Ltd

Verified Supplier
6 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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