Microcrystalline-Wax


What is Microcrystalline Wax ?

Microcrystalline wax is a type of petroleum-based wax that is composed of small, fine crystals. It is a byproduct of the petroleum refining process and has a high melting point, typically between 60°C to 90°C. Microcrystalline wax is used in a variety of applications, including in the production of candles, as a binder in the manufacture of chewing gum, in the formulation of cosmetics, and as a coating for food packaging. It is also used as a substitute for beeswax in certain applications due to its similar properties. Microcrystalline wax is known for its water-resistant and flexible nature, which makes it useful in a wide range of industrial and consumer applications.

 

Quality of Microcrystalline Wax   

The quality of microcrystalline wax is determined by several factors, including its melting point, oil content, color, and consistency. A high-quality microcrystalline wax will have a consistent melting point, typically between 60°C to 90°C, which allows it to be used in various applications that require specific melting temperatures.

The oil content of microcrystalline wax is also important because it affects its flexibility and softness. Higher oil content can make the wax more pliable and easier to work with in certain applications. However, excessive oil content can negatively impact the wax's ability to adhere to surfaces or create a smooth finish.

Color is another factor that can impact the quality of microcrystalline wax. The wax should have a consistent color throughout, typically ranging from white to yellowish-brown, and free from any impurities or discoloration.

Finally, the consistency of the wax should be smooth and uniform, with no lumps or graininess. This is important because it affects the wax's ability to be molded, shaped, or spread evenly.

Overall, a high-quality microcrystalline wax should have consistent melting point, appropriate oil content, consistent color, and smooth consistency, making it suitable for various industrial and consumer applications. 

History of Microcrystalline Wax  

 Microcrystalline wax has a relatively short history compared to other waxes like beeswax or paraffin wax. It was first produced in the late 19th century during the petroleum refining process. Prior to the discovery of microcrystalline wax, petroleum refineries were producing a low-quality wax that was unsuitable for many applications.

In the early 1900s, the refining process was improved, and microcrystalline wax became a viable product. It was initially used as a coating for paper, but its versatility quickly led to its use in other industries. The cosmetics industry adopted microcrystalline wax in the 1930s as a cheaper alternative to beeswax for the production of lipsticks, lotions, and other skincare products.

During World War II, microcrystalline wax was used extensively in the manufacture of military equipment, such as weapons, ammunition, and clothing. Its water-resistant properties and ability to withstand extreme temperatures made it ideal for military applications.

Since then, microcrystalline wax has become a staple in a wide range of industries, including the production of candles, chewing gum, food packaging, and more. It has undergone many refinements and improvements to meet the demands of modern manufacturing processes and consumer needs. Today, microcrystalline wax is produced and used around the world as a versatile and essential industrial material.

Usages of  Microcrystalline Wax 

 Microcrystalline wax has a wide range of uses in various industries due to its unique properties. Here are some common applications of microcrystalline wax:

Candle making: Microcrystalline wax is commonly used in the production of candles due to its high melting point, which helps candles to burn longer and more evenly.

Cosmetics: Microcrystalline wax is used as a thickener and emollient in the production of cosmetics, including lipsticks, creams, lotions, and hair styling products.

Chewing gum: Microcrystalline wax is added to chewing gum as a softener and binder, helping it to retain its shape and texture.

Food packaging: Microcrystalline wax is used as a coating for food packaging to improve its moisture resistance and protect the contents from contamination.

Industrial lubricants: Microcrystalline wax is used as a lubricant for machinery and equipment due to its water-resistant and low-friction properties.

Pharmaceuticals: Microcrystalline wax is used as a coating for pills and tablets to make them easier to swallow and to protect them from moisture.

Printing inks: Microcrystalline wax is added to printing inks to improve their gloss and adhesion to various substrates.

Sculpture and modeling: Microcrystalline wax is used in sculpture and modeling as a modeling medium or a protective coating to prevent oxidation.

Packing of Microcrystalline Wax  

 Microcrystalline wax is typically packed in various forms, including slabs, pellets, pastilles, or flakes, depending on the application and the customer's preference.

Slab packing: Microcrystalline wax is commonly packed in slabs weighing between 5 kg to 25 kg. Slab packing is ideal for customers who require a large quantity of wax and need to store it for an extended period.

Pellet packing: Microcrystalline wax can be packed in small pellets, ranging from 2 mm to 6 mm in size, for use in specific applications such as chewing gum or pharmaceuticals.

Pastille packing: Microcrystalline wax can also be packed in small, uniform pastilles, typically between 2 mm to 10 mm in size. Pastille packing is suitable for applications that require precise measurement or mixing, such as cosmetics or printing inks.

Flake packing: Microcrystalline wax can be packed in flakes, which are irregularly shaped pieces that are similar to pastilles but larger. Flake packing is suitable for customers who require small to medium-sized quantities of wax and prefer easy handling and storage.

Prices of  Microcrystalline Wax  

The price of microcrystalline wax can vary depending on various factors such as the grade, purity, packaging, and the location of the supplier. Generally, the price of microcrystalline wax is influenced by the price of crude oil since it is derived from petroleum refining. Other factors such as supply and demand, production costs, and currency exchange rates can also affect the price.

As of March 2023, the price of microcrystalline wax ranges from around $1.80 to $3.50 per kilogram, depending on the grade and the supplier. The higher the quality and purity, the higher the price. For example, food-grade microcrystalline wax is generally more expensive than industrial-grade wax due to stricter quality requirements.

It's important to note that prices can fluctuate and vary depending on the market conditions and supply and demand dynamics. It's always a good idea to check with multiple suppliers and compare prices and quality before making a purchase decision.

Delivery time and Readiness of Microcrystalline Wax 

 The delivery time and readiness of microcrystalline wax can vary depending on various factors such as the supplier's inventory levels, production capacity, and the customer's location. In general, if the supplier has sufficient inventory and the customer's location is within the supplier's distribution network, the delivery time can be relatively short.

For example, if the supplier has the required grade and packaging type of microcrystalline wax in stock, the delivery time can be as short as a few days to a week, depending on the shipping method and the distance.

However, if the supplier needs to produce the wax to the customer's specifications or if the customer requires a large quantity of wax that exceeds the supplier's production capacity, the delivery time can be longer. In such cases, the supplier may need to source the raw materials, produce the wax, and package it, which can take several weeks or even months.

To ensure timely delivery and readiness of microcrystalline wax, it's important to communicate the specific requirements and timelines with the supplier and plan accordingly. It's also a good idea to work with a reliable and experienced supplier who can provide timely updates and manage the logistics efficiently.

Analysis Table of Microcrystalline Wax

Property Value Test Method
Melting Point 70-90°C ASTM D87
Needle Penetration 5-25 (1/10 mm) ASTM D1321
Oil Content 5-15% ASTM D721
Color White to pale yellow ASTM D156
Acid Value 0.5 mg KOH/g ASTM D1386
Density 0.87-0.92 g/cm³ ASTM D91 or D2501
Viscosity @100°C 4-12 cSt ASTM D445
Flash Point (COC) 230-300°C ASTM D92 or D93
Congealing Point 65-80°C ASTM D938
Congealing Point (Drop Method) 68-75°C ASTM D127
Refractive Index @70°C 1.435-1.460 ASTM D1747
Solubility Insoluble in water, soluble in non-polar solvents (e.g. mineral spirits)     --