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Product Description
Product Description
Polymerized MDI Isocyanate Wannate PM200
Application
Isocyanates MDI is extensively application in most of field, such as thermal insulation rigid foam, PU coating, PU adhesive, Seepage-proofing, structure foam, Automobile bumper, high resilience etc.
With good performance such as very good fluidity, very good foaming capacity, strength well, dimension stability etc.
Product Parameters
Typical Physical and Chemical Properties
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Unit
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Content
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Appearance
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-
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Brownish Liquid
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Viscosity(25ºC)
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(mPa·s)
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150-250
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NCO Content
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%
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30.5-32.0
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Density (25ºC)
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(g/cm3 )
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1.220-1.250
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Acid Content
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%
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≤0.030
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Hydrolysable Chlorin
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%
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≤0.20
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Package(s)
Standard Packing:Iron Drum N.W.: 250KG/Iron Drum
Can also according to your requirment to packing.
MDI Properties
appearence: Brown transparent liquid;
boiling point (ºC): 200~208;
stability: stable. Incompatible with strong oxidizing agents, alcohols. May decompose in moist air, or on contact with water.
Storage
Since WANNATE® PM-200 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-200 should be kept properly closed and stored indoors at ambient temperature (15-35ºC) in a well-ventilated area. Storage at low temperature (below 5ºC) may lead to some crystallization; this material must, therefore, be protected from frost.
If crystallization does occur, the material should be heated by rolling the drum in a hot air oven at 70-80ºC to melt it out, and should then be thoroughly agitated before use. Melting in a water bath is not recommended.
Extended storage at temperatures above 50ºC is not recommended to prevent from the formation of insoluble solids and viscosity increase.
Shelf Life
Under recommended storage conditions, the shelf life of WANNATE® PM-200 is one year since the date of production.
 
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