Dioctyl Sebacate (DOS) Plasticizer

Product Overview

Dioctyl Sebacate (DOS) from ‌WSD CHEMICAL‌ represents the pinnacle of low-temperature plasticizer performance. As a linear, long-chain aliphatic diester, it is engineered to deliver exceptional flexibility and durability in extreme cold, far surpassing conventional plasticizers. ‌WSD CHEMICAL's‌ DOS is the definitive choice for premium polymer applications where maintaining elasticity, crack resistance, and performance integrity from deep freeze to moderate heat is non-negotiable.

Key Specifications

Core Features & Benefits

Ultimate Low-Temperature Performance‌: ‌WSD CHEMICAL's‌ DOS offers the best-in-class low-temperature flexibility, with a pour point below -65°C. It ensures polymers remain exceptionally pliable and resistant to cracking in arctic conditions, outperforming DOA and other adipates.

Excellent Heat & Light Stability‌: Provides superior resistance to heat aging and ultraviolet (UV) degradation compared to many other plasticizers. This results in longer service life for products exposed to outdoor weathering or elevated temperatures.

Low Volatility & High Permanence‌: Its high molecular weight and linear structure contribute to very low volatility and minimal migration/extraction by oils, water, and solvents. This ensures long-lasting flexibility and prevents hardening or shrinkage over time.

‌Outstanding Electrical Properties‌: Imparts excellent electrical insulation characteristics, making it a premium choice for high-performance, cold-resistant wire and cable insulation.

Broad Compatibility & Softening Efficiency‌: Compatible with a wide range of polymers including PVC, polyurethane (PU), nitrile rubber (NBR), and cellulose derivatives. It acts as an efficient plasticizer, providing a soft, non-tacky hand feel.

Primary Applications

· ‌Extreme Cold-Weather PVC‌: Military-grade cables, aerospace components, arctic equipment seals, and automotive parts for cold climates.

· ‌High-Performance Wire & Cable‌: Insulation and sheathing for special cables requiring outstanding flexibility at low temperatures and good electrical properties.

· ‌Synthetic Leather & Premium Films‌: For high-end applications demanding durability, softness, and resistance to cold and weathering.

· ‌Nitrile & Special Elastomers‌: Critical plasticizer for NBR and other elastomers used in seals, gaskets, and hoses that must function across a wide temperature range.

· ‌Medical & Food Contact Applications‌: Where high purity, low toxicity, and compliance with stringent regulations (e.g., FDA, USP) are required.

Recommended Usage

· ‌Typical Loading in PVC‌: ‌25 - 60 phr‌ (parts per hundred resin), depending on the required low-temperature threshold and flexibility.

· ‌Synergistic Use‌: While effective alone, it is often blended with other plasticizers (like ‌WSD CHEMICAL's‌ DOP or DINP) to optimize cost-performance for specific applications. Our technical support can guide optimal formulation.

Packaging & Storage

· ‌Packaging‌: Available in 200 kg drums, 1000 kg IBC totes, and Flexi tank loads. ‌WSD CHEMICAL‌ ensures premium-grade packaging to maintain product integrity.

· ‌Storage‌: Store in a cool, dry, well-ventilated area away from heat and ignition sources. Keep containers tightly sealed to prevent moisture absorption.

· ‌Shelf Life‌: 24 months from the date of manufacture when stored under recommended conditions.

Safety & Regulatory

· ‌Safety Profile‌: ‌WSD CHEMICAL's‌ high-purity DOS has low acute toxicity. Use with standard industrial hygiene practices (ventilation, gloves, goggles).

· ‌Regulatory Compliance‌: Complies with major regulations for its intended uses (e.g., FDA, REACH, RoHS for certain applications). For specific compliance in sensitive applications (medical, food contact), please consult ‌WSD CHEMICAL‌ for detailed documentation and the product Safety Data Sheet (SDS).