Capa® PROTX 3224 by Ingevity is a low molecular weight trifunctional caprolactone polyol, in which all of the hydroxyl groups are primary. It improves appearance and lightfastness in two component (2K) coatings.
- It is designed for use in surface coatings as well as the main polyol in very hard polyurethanes.
- When blended with other resins, the aliphatic backbones of Capa polymers support an increase in gloss and resistance to discoloration over time.
- Capa® PROTX 3224 is also used as a chain extender in polyurethane elastomers.
Product family:
Chemical family:
Product Type:
| Chemical Composition: | Trifunctional caprolactone polyol |
| Color | Clear |
| Appearance | Liquid |
Documents related to Capa® PROTX 3224
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Product Status:COMMERCIAL
Capa® PROTX 3224 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Acid Value | < 1 mg KOH/g | ||
| Color, APHA | < 50 | ||
| Functionality | 3 | ||
| Hydroxyl Value | 310 mg KOH/g | ||
| Molecular Weight, Mw | 500 g/mol | ||
| Solubility Parameter | 9.34 - 9.43 (cal/ cm3)1/2 | ||
| Viscosity | 860 mPa-s | At 23°C | |
| Water Content | < 0.02 % | ||