DOP (Dioctyl Phthalate) Plasticizer for Adhesives
CAS Number: 117-81-7
Dioctyl Phthalate (DOP, also known as DEHP) is a general-purpose plasticizer used in adhesive and sealant formulations to impart flexibility, reduce glass transition temperature, and improve low-temperature performance. It is compatible with PVC, nitrile rubber, polysulfide, and polyurethane sealants, making it versatile across multiple adhesive technologies. In sealant formulations, DOP reduces hardness and extends service life in dynamic joint applications.
Technical Specifications
| color | ≤20 (APHA) |
| purity | ≥99.5% |
| acidNumber | ≤0.05 mg KOH/g |
| appearance | Colorless oily liquid |
| specificGravity | 0.983–0.986 |
Applications
- PVC-based adhesives and sealants
- Polysulfide joint sealants
- Nitrile rubber adhesive compounds
- Flooring adhesives
- Automotive underbody coatings
Key Features
- Effective flexibility and low-temperature performance
- Good compatibility with PVC and rubber compounds
- Reduces Shore hardness in sealant formulations
- Cost-effective general-purpose plasticizer
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CAS Number
117-81-7
Category
Adhesive / Sealant AdditivesAvailability
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