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ESBO (Epoxidized Soybean Oil) is a bio-based plasticizer and thermal stabilizer for rigid and semi-rigid PVC profiles and window frames. This grade provides excellent thermal stability with less degradation during extrusion, improving surface finish and long-term weatherability.
Parameter | Value |
Color Shade | Max 60–70 |
Density | 0.988–0.998 g/cm³ |
Acidity | Max 0.4 mg KOH/g |
Flashing Point | Min > 280 °C |
Loss upon Heat | Max 0.30% |
Iodine Value | Max 3.0% |
Epoxy Value | Min > 6.2% |
PVC window and door profiles
Rigid PVC profiles and trims
Fencing and decking profiles
Cable ducts and conduits
REACH and RoHS compliant; UV-stability enhanced; ISO 9001:2015 certified production.
The epoxy groups in ESBO scavenge hydrogen chloride released during processing, slowing degradation and extending thermal stability.
At typical co-stabilizer dosage (2-6 phr), ESBO has minimal effect on rigidity while improving processability and heat stability.
Yes, ESBO improves melt flow and lubrication, enabling smoother extrusion and reduced downtime.
Combined with appropriate UV stabilizers, this grade supports long-term weatherability of outdoor PVC profiles.
Yes, our technical team provides starting formulations and on-site support for profile extrusion customers.
