Semi-refined paraffin wax, also known as slack wax, is a type of paraffin wax that has undergone a partial refining process. While it is not as refined as fully refined paraffin wax, it still possesses certain characteristics that make it suitable for various applications.
Semi refined paraffin wax is obtained during the initial stages of the refining process of crude oil. It is a mixture of oil, wax, and other impurities. The wax is separated from the oil through a process called solvent extraction, which involves dissolving the wax in a solvent and then separating it from the oil.
Due to its partial refining, semi refined paraffin wax typically has a lower melting point compared to fully refined paraffin wax. The melting point can vary depending on the specific grade and composition but generally ranges from around 45 to 55 degrees Celsius (113 to 131 degrees Fahrenheit).
One of the main applications of semi-refined paraffin wax is in the production of various industrial products. It is commonly used as a lubricant, releasing agent, and additive in industries such as rubber, plastic, and textile manufacturing. The wax provides lubrication, enhances processability, and improves the surface finish of the final products.
Semi-refined paraffin wax is also utilized in the production of certain candles. It is often blended with other waxes or additives to achieve specific properties and characteristics in the candles. However, it may not offer the same level of performance and burning qualities as fully refined paraffin wax.
Additionally, semi refined paraffin wax finds applications in certain packaging materials and coatings. It can be used as a moisture barrier on paper or cardboard to provide protection to the contents. However, it may not offer the same level of moisture resistance as fully refined paraffin wax.
It’s important to note that semi-refined paraffin wax may contain residual impurities and have a less consistent composition compared to fully refined paraffin wax. This can impact its suitability for certain applications that require a higher level of purity and performance.
When considering the use of semi refined paraffin wax, it is important to carefully evaluate its properties and compare them to the specific requirements of the intended application. In some cases, where a lower level of refinement is acceptable, semi-refined paraffin wax can provide a cost-effective alternative to fully refined paraffin wax.
In summary, semi-refined paraffin wax, or slack wax, is a partially refined form of paraffin wax obtained during the initial stages of the refining process. It finds applications in industries such as rubber, plastic, and textile manufacturing, as well as in certain types of candles and packaging materials. While it may not offer the same level of purity and consistency as fully refined paraffin wax, it can still be a suitable choice for certain applications where a lower level of refinement is acceptable.