Baydur® 486

modified pMDI; NCO: approx. 27.2 Wt.%; Viscosity: approx. 300 mPa·s @ 25°C

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Product Types

  • System


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General Characterization

Baydur 486 is a modified polymeric diphenylmethane polyisocyanate.

Storage Conditions

Baydur 486 polyisocyanate must be stored in tightly closed containers and protected from contamination with moisture and foreign materials, which can adversely affect processing. It will react with water to form ureas and carbon dioxide gas, which may cause sealed containers to expand and rupture. Recommended storage temperatures are 18° to 30°C (64° to 86°F).
The shelf life is six months after receipt of material by customer, when stored in sealed original containers under conditions stated above.


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Packaging Type

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Technical Properties & Datasheets

Property Name Test Method Unit Value
Viscosity at 25°C mPa•s 240 - 395
Acidity wt.-% max. 0.03
NCO content wt.-% 26.9 - 27.7

Property Name Test Method Unit Value
Density at 25°C lb/gal 10.3
Appearance Dark brown liquid
Flash point (PMCC) °C 213
Specific gravity at 25°C 1.24


Technical Data Sheet
Safety Data Sheet
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