Slack Wax
What is Slack Wax?
Slack wax, a by-product of the base oil refinery process, consists of a blend of oil and wax. Initially introduced into the system as raw material, slack wax undergoes various refining processes including de-oiling and bleaching to produce different grades of paraffin wax. Naturally brown in color, slack wax is classified into two types based on the viscosity of the lube oil subjected to de-waxing: light and heavy. Light grades exhibit a melting point of 50-52˚C, while heavy grades, with a melting point of 53-55˚C, contain a higher oil content ranging from 5.0% to 35%. Typically, light slack wax is refined further to produce fully-refined paraffin wax, suitable for applications in cosmetics and the food industry. On the other hand, heavy slack wax is typically processed into semi-refined paraffin wax, which contains a higher proportion of oil and is commonly used in industries such as candle-making, rubber production, adhesives, hot melts, and inks.
Heavy Slack Wax 2-12%
| Heavy Slack Wax 2 to 12% | |||||
| CHARACTERISTIC | TEST METHOD | RESULT | |||
| Grade | – | H-05 | H-08 | H-10 | H-12 |
| Kinematic Viscosity @ 100 oC | ASTM D-445 | 5.5-7.5 | 5.5-7.5 | 5.5-7.5 | 5.5-7.5 |
| Oil Content | ASTM D-721 | 2-5 | 5-8 | 8-10 | 10-12 |
| Density @ 15.6 oC | ASTM D-4052 | 810-840 | 810-840 | 810-840 | 810-840 |
| Flash Point | ASTM D-92 | 240 | 240 | 240 | 240 |
| Color @ 70 oC (max) | ASTM D-150 | 3 | 3 | 3 | 3 |
| Congealing Point 0 oC (min) | ASTM D-938 | 60 | 60 | 60 | 60 |
Heavy Slack Wax 7-11%
| Heavy Slack Wax 7 to 11% | ||
| CHARACTERISTIC | TEST METHOD | VALUE |
| Kinematic Viscosity @ 100 oC ˚C | ASTM D445 | 6 – 7.5 |
| Oil Content (%wt) | ASTM D721 | 7 – 11 |
| Melting Point | ASTM D87 | 56 – 65 |
| Color | ASTM D1500 | 1.5 |
Heavy Slack Wax 3-8%
| Heavy Slack Wax 3 to 8% | ||
| CHARACTERISTIC | TEST METHOD | VALUE |
| Kinematic Viscosity @ 100 oC ˚C | ASTM D445 | 3 – 6 |
| Oil Content (%wt) | ASTM D721 | 3 – 8 |
| Melting Point | ASTM D87 | 55 – 60 |
| Color | ASTM D1500 | 0.5 – 3 |
Heavy Slack Wax 15-30%
| Heavy Slack Wax 15 to 30% | |||
| CHARACTERISTIC | TEST METHOD | SW – 10 | SW – 40 |
| Kinematic Viscosity @ 100 oC, CSt | D-445 | 5 | 8 |
| Flash Point oC | D-92 | 320 | 265 |
| Specific Gravity @ 15.6 oC | D-1298 | 820 | 855 |
| Oil Content | D-721 | 15 | 25 |
| Congealing Point oC | D-937 | 55 | 61 |
| Color | D-1500 | 0.5 | 2.0 |
| Dropping Melting Point oC | D-127 | 57 | 65 |
Light Slack Wax:
Light slack wax, typically yellow or light brown in color, is a product that melts easily with a melting point of approximately 57°C.It finds widespread use in various applications such as wax emulsions, serving as binders and waterproofing agents in artificial woods, matches, jar candles, rust protection products, industrial lubricants, arena footing, surf protection, and fireplace products.
Heavy Slack Wax:
Heavy slack wax, characterized by higher melting and congealing points, exhibits a darker hue compared to its lighter counterpart, with a melting point reaching up to 68°C. It is primarily utilized in wax emulsions as binders and waterproofing agents in artificial woods, matches, jar candles, rust protection products, industrial lubricants, surf protection, polishing boards, cable filling, paraffin wax, and PVC industries.
APPLICATION:
- Utilized in waterproofing fabrics and industrial paper
- Employed in the manufacturing of industrial waxes
- Used in the production of solid inks for copy paper
- Utilized in matches production