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Rulon Bearings

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Covestro Arcol® 31-28 Polyether Polyol
Categories: Polymer; Thermoset

Material Notes: Characterization: Arcol 31-28 polyether polyol is a unique triol-based polymer polyol.

Properties / Applications: Arcol 31-28 polyether polyol is used in a broad range of urethane applications. It is compatible with most polyether polyols and can be blended with other diols, triols and polymer polyols to achieve desirable modifications of product properties. Typical applications include integral skin foams, shoe soles, one shot elastomers and reaction injection molding (RIM). Arcol 31-28 is particularly useful for high modulus elastomers and materials needing good high-temperature properties. As with any product, use of Arcol 31-28 polyol in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.

Information provided by Covestro

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.05 g/cc
Bulk Density 65.5 lb/ft³
Viscosity 3000 cP
Storage Temperature 20.0 - 60.0 °C
 
Thermal PropertiesOriginal ValueComments
Flash Point 164 °CPMCC
 
Processing PropertiesOriginal ValueComments
Moisture Content <= 0.060 %
 
Descriptive Properties
AppearanceYellow opaque, viscous liquid
Hydroxyl number26.6-29.4 mg KOH/g

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PCOVEST0014 / 201797

Master Bond adhesives

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