Petrochemical Products

Microcrystalline wax is commonly used as a raw material for yarn waxing, which is one of its key applications in the textile industry. Reducing friction as a lubricant: This is its most fundamental function. Microcrystalline wax forms a lubricating film on the yarn surface, effectively reducing friction between the yarn and textile machinery, thereby lowering yarn breakage rates and improving production efficiency. At the same time, this protective film also enhances the yarn’s abrasion resistance, enabling it to withstand the rigors of high-speed spinning and weaving processes. Good flexibility and high elongation: When subjected to stress, microcrystalline wax tends to flow plastically rather than fracture brittle, which prevents it from peeling off the yarn surface after application and ensures long-lasting lubrication. High molecular weight and strong adhesion: It has a higher molecular weight than paraffin wax, providing better adhesion to the yarn and forming a more durable coating.

Microcrystalline wax is ideal as a gloss enhancer in paste-based products and is one of their classic core ingredients. Excellent film-forming and gloss properties: Microcrystalline wax imparts outstanding gloss to paste-based products, forming a uniform, lustrous protective film on surfaces such as automotive paint, furniture, and leather shoes, while providing both gloss and care. Good compatibility and stability: It is miscible with various mineral waxes, plant waxes, and hot fatty oils, allowing for flexible formulation design. In paste-based polishing agents, it also prevents oil separation, ensuring the product’s texture remains stable. Ideal physical properties: Microcrystalline wax is highly viscous and ductile, and does not become brittle even at low temperatures. These properties make the wax layer more resilient and long-lasting after application, while also preventing cracking or peeling.

Microcrystalline wax is widely used in paper processing, primarily to enhance the waterproof, oil-proof, heat-seal, and flexibility properties of paper. Enhancing water and oil resistance: Applying microcrystalline wax in the form of a lotion to paper surfaces can impart good waterproof, oil-proof, and water vapor barrier properties to the paper, making it a viable alternative to fluorine-containing oil repellents for packaging paper. For high-end packaging coatings: In cigarette inner lining paper, microcrystalline wax coating serves as a barrier layer, being solvent-free, VOC-free, environmentally friendly, and fast-curing. In packaging box coating formulations, the addition of microcrystalline wax enhances waterproofing, oxygen barrier, and adhesion properties.

Microcrystalline wax is a core physical antioxidant in the rubber and tire industry. Its key advantages in tires and rubber include: ‌Ozone crack resistance: Particularly suitable for areas subject to dynamic stress, such as tire sidewalls, significantly extending service life under outdoor exposure. Low-Temperature Flexibility: The irregular crystal structure of microcrystalline wax provides the protective film with superior low- temperature ductility, preventing the wax film from cracking and failing due to rubber flexing in cold environments. Synergistic Effect: Often blended with chemical antioxidants to form a “physical + chemical” dual-protection network, enhancing overall weather resistance.

Applications as a Lubricant ‌Grease Thickener: Leveraging its high gel strength and excellent adhesion, it serves as a thickener for greases, enhancing their adhesion and protective properties. It is commonly used in greases for instrumentation and sealing applications. ‌Surface Friction Reduction and Release Agents‌: In rubber and plastic processing, microcrystalline wax migrates to the surface to form a film, acting as a release agent and anti-adhesive to reduce frictional resistance; it also reduces fiber friction in textile yarn waxing. Applications as a Coating Material Due to its high melting point, fine crystalline structure, and water- and moisture-resistant properties, microcrystalline wax is an excellent coating material: Protective Coatings: Used in metal anti-rust coatings, cable insulation paper impregnation, and electroplating masking coatings to form a dense protective layer that blocks moisture and oxygen.

In the packaging and printing industries, microcrystalline wax is primarily used to impart moisture resistance, oil resistance, and gloss to materials, as well as to enhance ink performance.‌‌ ‌Packaging sector‌: Used as a wax coating agent for packaging paper (such as food and pharmaceutical paper bags) to provide moisture resistance, oil resistance, and anti-stick properties; it is also used for fruit coatings or impregnation treatments to enhance barrier properties and surface texture; Certain high-melting-point grades can serve as heat-seal layers or adhesion promoters. Printing sector: Added to inks (especially in gravure and flexographic printing) as rheology modifiers, anti-smear agents, and adhesion promoters to improve drying speed, print clarity, and abrasion resistance; it can also be used in varnishes or laminating coatings to enhance gloss and scratch resistance.

Industrial microcrystalline wax, with its high ductility, low brittleness, excellent film-forming properties, moisture-proof sealing capabilities, and thickening and stabilizing properties, is widely used in the following industrial sectors:‌‌ ‌Packaging and Printing‌: Used as a paper coating to enhance water resistance, gloss, and heat-sealability; used in inks to adjust viscosity, improve adhesion, and reduce plate clogging. Rubber and Tires: Acts as an anti-aging agent and release agent, migrating to the surface to form a protective film that resists ozone cracking, reduces mold sticking during processing, and extends product lifespan. ‌Metal Rust Prevention and Lubrication: Used in rust-preventive pastes, cutting fluid additives, and instrument greases to provide an oil film barrier and enhance viscosity. ‌Plastics and Coatings: Added to plastics (such as electronic enclosures) to improve demolding, wear resistance, and surface gloss; used in coatings as a rheological modifier and a matte/gloss adjuster.

Key Features of Microcrystalline Wax in Printing Inks: 1. Provides Excellent Surface Protection Microcrystalline wax effectively enhances the ink’s scratch resistance, abrasion resistance, and anti-blocking properties, preventing smudging or scratching of printed materials during stacking or subsequent processing. This is particularly important for ensuring the visual quality of printed materials—such as packaging—during transportation and use. 2. Virtually no impact on ink gloss Thanks to its regular spherical particle structure, microcrystalline wax scatters light very uniformly. This allows it to provide protection while maximizing the ink’s original high gloss, even at higher loading levels, making it particularly suitable for high-quality printed materials such as catalogs, magazines, and gloss-coated packaging.

Microcrystalline wax is a crucial functional additive in shoe polish manufacturing, primarily used to enhance the polish’s gloss, paste stability, and film durability. Forms a high-gloss protective film: Microcrystalline wax has a dense structure and excellent luster; when rubbed, it produces a glossy finish and forms a thin, hard protective film on the surface of leather shoes, providing long-lasting shine. Enhancing water and stain resistance: Microcrystalline wax possesses excellent hydrophobic properties. When combined with other waxes and oil- based ingredients, it effectively fills the gaps between leather fibers, preventing the penetration of moisture and stains.

Microcrystalline wax is a white, amorphous solid wax refined from petroleum residue oil. Its main components are C31–C70 branched-chain saturated hydrocarbons and a small amount of naphthenes. It features a high melting point, strong adhesion, excellent ductility, and low-temperature toughness. It is odorless and tasteless, insoluble in water and ethanol, but soluble in organic solvents such as benzene and chloroform.‌‌ ‌Physical Form and Structure‌: A white or off-white waxy solid,‌ amorphous with fine crystalline features,‌ with a flexible texture that does not crack or break easily, and exhibits a luster when rubbed. ‌Thermal Properties‌: Wide melting point range (typically 60–90°C), good high-temperature stability, and low thermal expansion coefficient. ‌Mechanical Properties‌: High viscosity, strong ductility, and good elasticity; remains flexible at low temperatures and is not prone to cracking.

OPE wax is a plastic processing aid that provides both internal and external lubrication. It is widely used in the extrusion, injection molding, and calendering processes of thermoplastic resins such as PVC, PE, and PP to reduce melt viscosity, minimize equipment friction, improve demolding properties, and enhance the surface gloss of finished products.‌‌ ‌Internal Lubrication: The polar groups of the molecules are partially compatible with the resin, reducing intermolecular friction, promoting plasticization, and reducing energy consumption. External Lubrication: It migrates to the melt-metal interface to form a lubricating film, preventing roller/mold sticking, improving flow, and enhancing demolding efficiency. It performs exceptionally well in rigid PVC profiles, pipes, and cable compounds. Balanced Lubricity: Compared to polyethylene wax, OPE wax introduces polar groups through oxidation, resulting in more balanced internal and external lubrication in polar systems and reduced tendency to bloom.

The core principle behind the use of micronized wax in leather processing is that it migrates to the leather surface during the coating and film-forming process, forming a micron-scale waxy protective layer. This reduces the coefficient of friction, enhances abrasion and scratch resistance, improves the hand feel, and boosts water-repellency and anti-adhesion properties.‌‌ Film Formation, Migration, and Surface Enrichment: During the drying or film- forming stage of leather finishing agents, micronized wax migrates to the surface due to differences in compatibility with the system, precipitating as fine crystals to form a “wax-coated” surface layer. ‌Lubrication and Scratch Resistance‌: The low surface energy of wax significantly reduces external contact friction, causing potential scratches to slip away rather than penetrate, thereby improving scratch resistance, abrasion resistance, and resistance to polishing. ‌Hand Feel Control‌: It provides a smooth, rich, or slightly velvety feel while avoiding stickiness; certain waxes can also adjust the finish to a matte or high-gloss effect.

Plastics and Polymers Processing This is the market with the largest consumption of Fischer-Tropsch wax. It is primarily used as an external lubricant to prevent melted plastics (such as PVC) from sticking to processing equipment, resulting in a smoother and more glossy surface of the products. Ink and paint Here, Fischer-Tropsch wax primarily enhances the wear and scratch resistance of products, making printed materials and coatings more durable. It also provides slipperiness, enhancing the tactile experience, and prevents the coating surfaces from sticking to each other. Adhesive and hot melt adhesive Fischer-Tropsch wax is used to adjust viscosity, making hot melt adhesive easier to flow and spread during melting. At the same time, it can also control the curing speed, helping adhesives achieve rapid bonding.

Micronized wax is primarily used in the coatings, inks, and plastics industries to provide wear resistance, lubrication, matting, and improved tactile feel. Coatings and Inks: Used in powder coatings, industrial paints, and various types of inks to enhance scratch resistance and slip, as well as control gloss. ‌Plastics and Rubber‌: Acts as a lubricant and dispersant in plastic processing to improve flow; prevents high-temperature roller sticking in rubber applications. What specific functions does it serve ‌Abrasion and Scratch Resistance‌: Disperses external forces like a microscopic buffer zone, reducing scratches and wear on coatings. ‌Lubrication and Demolding‌: Reduces the coefficient of friction, prevents product adhesion to molds, and facilitates demolding. ‌Matte Finish and Texture‌: Combined with matting agents to produce matte coatings, imparting a smooth, skin-like feel or fingerprint-resistant properties to the surface.‌‌‌