Long Oil
Long Oil refers to oils with a high content of unsaturated fatty acids, particularly linoleic and linolenic acids, commonly derived from drying oils such as linseed, soybean, or safflower oil. These oils have extended drying times and are used in various industrial applications where slow curing and flexible film formation are desired. Long oil is a key component in producing long oil alkyd resins, which are widely used in coatings, paints, varnishes, and printing inks due to their excellent adhesion, flexibility, and durability.
Long Oil
Primary Uses
- Alkyd Resin Manufacture
- Used as a major raw material in long oil alkyd resin production for paints and coatings, providing improved flexibility and adhesion.
- Imparts slow drying characteristics suitable for applications requiring extended working time and durable finish.
- Paints and Coatings
- Incorporated in decorative and protective coatings for wood, metal, and masonry surfaces.
- Enhances gloss, toughness, and weather resistance of coatings.
- Printing Inks
- Acts as a binder and plasticizer in certain ink formulations to improve flow, drying, and adhesion properties.
- Varnishes and Sealants
- Utilized in producing varnishes that require slow curing and a flexible film for wood finishing and protection.
Secondary Uses
- Plasticizers
- Used as a natural plasticizer in polymer formulations to improve flexibility and workability.
- Lubricants
- Employed as a base or additive in specialty lubricants requiring oxidation stability and film-forming properties.
- Cosmetics and Personal Care
- Occasionally used in formulations requiring natural oils with emollient and film-forming characteristics.
- Chemical Intermediate
- Used as a feedstock in chemical synthesis for drying agents, stabilizers, and other industrial chemicals.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Mixture of triglycerides rich in polyunsaturated fatty acids
- Common/Trade Name: Long Oil; Drying Oil
- CAS Number: Varies depending on source oil (e.g., Linseed Oil CAS 8001-26-1)
- HS Code: 1515.90.00 (Vegetable oils and fats, other)
- Synonyms: Drying oil; high-unsaturation oil; linseed-type oil
2. Physical & Chemical Properties
- Physical State: Viscous liquid
- Color & Odor: Yellow to amber; characteristic oily odor
- Density: Approx. 0.92 g/cm³
- Viscosity: High, dependent on temperature and source
- Drying Time: Slow to moderate (hours to days depending on conditions)
- Solubility: Insoluble in water; soluble in organic solvents
3. Safety & Hazard Attributes
- GHS Classification: Combustible liquid; may cause skin irritation
- Toxicity: Generally low toxicity but can cause dermatitis upon prolonged skin exposure
- Exposure Limits: No specific occupational limits; observe good industrial hygiene
4. Storage & Handling Attributes
- Storage Conditions: Store in cool, dry, and well-ventilated area away from ignition sources and direct sunlight
- Container Type: Steel drums or sealed containers suitable for oils
- Shelf Life: Typically 1–2 years if stored properly
- Handling Precautions: Avoid moisture and contamination; minimize skin contact
5. Regulatory & Compliance Attributes
- Complies with relevant chemical safety regulations (OSHA, REACH)
- Suitable for industrial use; not typically regulated as a hazardous material
6. Environmental & Health Impact
- Biodegradability: Biodegradable under aerobic conditions
- Ecotoxicity: Low to moderate toxicity to aquatic organisms if released in large quantities
- Bioaccumulation: Not significant
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic
Safety Handling Precautions
- PPE Required: Gloves and safety goggles recommended during handling
- Handling Guidelines: Use adequate ventilation; avoid prolonged skin contact
- Storage Measures: Keep containers sealed and away from heat sources
First Aid Measures
- Inhalation: Move to fresh air if inhalation of fumes or vapors occurs
- Skin Contact: Wash with soap and water; seek medical advice if irritation develops
- Eye Contact: Rinse with plenty of water; seek medical attention if irritation persists
- Ingestion: Rinse mouth; seek medical attention
Firefighting Measures
- Fire Hazards: Combustible liquid and may produce dense smoke on burning
- Extinguishing Media: Foam, dry chemical, carbon dioxide, or water spray
- Special Precautions: Use self-contained breathing apparatus in confined spaces
- Hazardous Combustion Products: Carbon monoxide, carbon dioxide, and various hydrocarbons
Related products
Bayprene
Bayprene is a high-quality, synthetic rubber polymer belonging to the class of nitrile butadiene rubbers (NBR). It is widely used for its excellent resistance to oils, fuels, chemicals, and abrasion, making it ideal for sealing, gasketing, hoses, and industrial applications where durability and chemical resistance are required. Bayprene exhibits good mechanical properties, high tensile strength, and resistance to swelling and degradation, especially in petroleum-based environments. It is commonly supplied as solid rubber sheets, molded parts, or raw polymer for compounding.
Hydrocarbon Resins
Hydrocarbon Resins C5 And C9 Petroleum Resins are synthetic petroleum-derived resins produced through the polymerization of C5 (pentene) and C9 (nonene) fraction monomers. These resins appear as pale yellow to amber solid materials, usually in pellet or flake form, characterized by tackifying and adhesive properties. C5 resins are derived from aliphatic hydrocarbons, while C9 resins originate from aromatic hydrocarbons. Often blended, these resins provide a balance of hardness, tackiness, and compatibility with various polymers. Widely used as tackifiers, binders, and modifiers, C5 & C9 hydrocarbon resins enhance performance in adhesives, coatings, rubber compounding, and more.
Linseed Oil
Linseed Oil, also known as flaxseed oil, is derived from the seeds of the flax plant (Linum usitatissimum). It is a pale yellow to amber oil with a mild, nutty aroma. Rich in omega-3 fatty acids and antioxidants, Linseed Oil is widely used in cosmetics, personal care, industrial applications, and traditional medicine. It is valued for its moisturizing, anti-inflammatory, and skin conditioning properties, as well as its drying qualities in paints and varnishes.
Linseed Oil Raw
Linseed Oil Raw is the unrefined, natural oil extracted from flax seeds through cold pressing or solvent extraction. It contains natural impurities such as gums, waxes, and free fatty acids, giving it a darker color and stronger odor compared to refined oils. Raw linseed oil is a drying oil known for its excellent film-forming and adhesive properties. It is widely used in traditional wood finishing, oil painting, and industrial applications where natural and slow-drying oil is preferred.
Medium Binder
Medium Binder is a versatile adhesive and binding agent formulated to enhance cohesion, strength, and durability in various industrial and construction applications. It improves the bonding properties between different materials, providing a reliable and consistent bond that resists environmental degradation. Medium Binder is suitable for use in composites, coatings, and concrete formulations, optimizing performance and structural integrity.
Penetrator Binder
Penetrator Binder is a high-performance binding agent designed to improve the adhesion and penetration of coatings, adhesives, and sealants into porous substrates. It enhances substrate wettability and strengthens the bond between the applied material and the surface, resulting in improved durability and performance. Penetrator Binder is commonly used in construction, wood treatment, and industrial coatings to ensure better material integration and resistance to environmental factors.
Petroleum Resin C9 Hydrocarbon
Petroleum Resin C9 Hydrocarbon is a thermoplastic hydrocarbon resin derived from the C9 fraction of petroleum cracking. It is a tackifying resin with excellent compatibility with various polymers, especially in adhesives, paints, rubber, and coatings industries. Known for its good color stability, fast curing, and strong adhesion properties, C9 Petroleum Resin enhances product performance in many industrial applications.
Pigment Binder
Pigment Binder is a key component in paint, coating, and ink formulations that serves to bind pigment particles together and adhere them to the substrate. It provides mechanical strength, durability, and resistance to environmental factors such as moisture, UV radiation, and chemicals. Pigment binders influence the finish, gloss, flexibility, and adhesion properties of the final product, making them essential for high-performance coatings in various industries.

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