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GENERAL PRODUCT DESCRIPTION
CAPA® 2125A is a premium grade linear polyester diol derived from caprolactone, terminated by primary hydroxyl groups. It has a molecular weight of 1250 and a typical OH value of 90 mg KOH/g.
The product has been specially developed as an intermediate for the production of high quality polyurethane elastomers, where outstanding resistance to hydrolysis is required. It is also recommended for the production of high quality polyurethane coatings and fibres.
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TYPICAL PROPERTIES
| Physical Form |
White waxy solid
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| Mean Molecular Weight |
1250
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| Melting Point |
35°C-45°C
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| Hydroxyl Value |
90 mg KOH/g
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| Acid Value |
<0.05 mg KOH/g
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| Water Content |
<0.02%
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| Viscosity at 60°C |
175 mPa.s
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DENSITIES
The typical specific gravity (SG) of the material, measured at 55°C c.f. water at 20°C, is 1.071.
SOLUBILITY PARAMETERS
The solubility parameter (δ) is 9.34 – 9.43 (cal/cm3)½.
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