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Semi refined paraffin wax is a petroleum-derived by-product produced during crude oil refining. It is a white solid, typically molded into slabs of about 5 kg, and is the most widely used wax for candle manufacturing.
This semi-refined paraffin wax is a petroleum-based hydrocarbon blend that is only partially purified rather than fully refined. As a result, it offers a practical balance between performance and cost for large-scale manufacturing.
Oil Content: Typically 3%5%, and in some cases up to 5%7%. This is higher than fully refined wax, which usually contains less than 0.5% oil.
Melting Point: Usually between 58°C and 60°C, depending on climate and performance requirements.
Physical Appearance: A hard white to slightly off-white crystalline solid at room temperature, typically supplied in slab form.
Solubility: Insoluble in water and alcohol, but readily soluble in organic solvents such as ether and benzene.
Color: White (<1.0)
This is the most common use of semi-refined paraffin wax. Its 3%5% oil content supports strong fragrance retention and good color dispersion. It is widely used in household, decorative, and container candles because it helps minimize shrinkage, reduces surface cracking during cooling, and promotes an even burn.
In the rubber and tire industry, it is used as a processing aid and softener. It rises to the surface of rubber products to form a protective film that helps resist ozone damage, weathering, and cracking.
For packaging and paper coatings, it is applied as a waterproof barrier on cardboard, wax paper, and food wrappers. This coating helps keep goods dry during transport and can extend shelf life.
It is also used in polishes and anti-corrosion products, including shoe, floor, and car polishes, where it adds gloss and surface protection. In industrial formulations, it helps protect metal parts from moisture and air exposure.
In industrial lubricants and PVC processing, it functions as an external lubricant in extrusion and plastic molding. It improves material flow through machinery and also serves as a release agent.
In cosmetics and pharmaceutical products, it is used as a texturizer, thickener, and moisture barrier in items such as lotions, barrier creams, lip balms, and medicated ointments.
In the match and stationery industries, it is added to wooden matchsticks as a readily vaporized fuel that helps ignition and supports a smoother burn. It is also used as a binder in the production of crayons, pencils, and carbon paper.
