Capa® 3091 by Ingevity is a polyester triol terminated by primary hydroxyl groups. It is recommended as a polyol for CASE (coatings, adhesives, sealants, and elastomers) applications, particularly for enhancing one-component (1K) and two-component (2K) coatings.
- It offers improved processing characteristics, reduces volatile organic compound (VOC) content, and enhances wetting properties.
- It improves appearance and lightfastness.
- When blended with other resins, the aliphatic backbones of Capa polymers support an increase in gloss and resistance to discoloration over time.
- Additionally, Capa® 3091 is compatible with various chemistries, including acrylics, polyethers, polyesters, polycarbonates, and epoxy systems.
Product family:
Product Type:
| CAS Number | 37625-56-2 |
| Chemical Composition: | Polyester triol terminated by primary hydroxyl groups |
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Product Status:COMMERCIAL
Capa® 3091 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Acid Value | < 1 mg KOH/g | ||
| Color, APHA | < 10 | ||
| Freezing Point | 0 - 10 °C | ||
| Functionality | 3 | ||
| Hydroxyl Value | 182 mg KOH/g | ||
| Molecular Weight, Mw | 910 g/mol | ||
| Solubility Parameter (d) | 9.34 - 9.43 (cal/ cm3)1/2 | ||
| Viscosity | 1250 mPa-s | At 23°C | |
| Water Content | < 0.02 % | ||