DOTP vs DINP vs DOP — Technical Comparison
The three most used plasticizers in the PVC industry are: DOTP, DINP and DOP (DEHP). Each has a different performance profile, cost advantage and regulatory status. In this article, we technically compare three plasticizers.
The three most used plasticizers in the PVC industry are: DOTP, DINP and DOP (DEHP). Each has a different performance profile, cost advantage and regulatory status. In this article, we technically compare three plasticizers.
1. DOTP (Dioctyl Terephthalate)
Features
Non-phthalate → REACH and RoHS compatible
Low migration
Excellent temperature stability
Ideal for cable, hose, shoe, granule production
Advantages
✔ High performance
✔ Low odor
✔ Fully compatible with the European market
2. DINP (Di-Isononyl Phthalate)
Features
Medium migration
High mechanical resistance
Very wide application area
Limited use in toys (EU)
3. DOP (DEHP)
Properties
Toxicologically risky
SVHC list
Prohibited / restricted in many sectors
Cost is low but export is incompatible
4. Performance Comparison
| Feature | DOTP | DINP | DOP |
|---|---|---|---|
| Fit | ★★★★★ | ★★★★ | ★ |
| Migration | ★★★★★ | ★★★ | ★★ |
| Smell | Very low | Medium | High |
| Mechanical performance | High | Very high | Medium |
| Regulation compliance | Full | Partial | Low |
