Slack wax packed in drum and jumbo bag

Slack wax packed in drum and jumbo bag-1

Slack wax packed in drum and jumbo bag

Slack wax  is a mixture of oil and wax , a  petroleum product , It is one of the products of refineries which is mixture of paraffin wax and oil , from petroleum crude oil. oil content can range from 5% to 30%.During producing the feedstock goes through solvent extracting  procedure to remove aromatics and the final product is Raffinate. Raffinate is then diluted with solvent like methyl-ethyl ketone (MEK) to decrease  its viscosity to improve low-temperature filterability. The diluted oil is then chilled to -10°C to -20°C. Wax crystals will be  formed  and extracted by filtration. And the extracted wax is called  Slack Wax.

Slack wax is raw material of paraffin wax

It is the raw material of paraffin wax , yellow or brown color , it is processed by pressing to decrease the oil content and discoloring by whitening powders to produce paraffin wax .In past years it considered as waste products  of the refineries and they paid to get rid of this product but now it is so useful that most of the refineries slack wax is booked and purchased long time before producing. Slack wax is the crude wax produced by chilling and solvent filter-pressing wax distillate it can be heavy or light grade and differernt oil contents determines the quality. Heavy slack wax melting and congealing point  is more than light  grade ,  oil content  can be 7% , 10% , 15% , 15%.Light slack wax color is lighter than heavy grade , melting point is  55-57 C which can be an advantage of this grade of slack wax

Usage of slack wax

Slack Wax is used mostly in producing different grades of paraffin wax which is the raw material of Candle so the final product of slack wax can be known as candle also it is used as blending components or waterproofing in the manufacture of various industrial products such as wax emulsions, construction board, matches,  cable filing compound ,rust protective products and moisture vapor barriers , polishes, inks, carbon paper and externally can be applied as good dust suppressants or controlled-release agents for various chemical and fertilizers.

Packing of slack wax

Packing can be new or conditioned 180 kg drums, Iso tank or flexi tanks also possible with higher cost . in each 20 foot container 110 drums of slack wax can be loaded and in flexi and Iso tanks 20-22 MT will be loaded . In winter time jumbo bags with 1000 kg capacity , also the small bags equal to 25 kg can be used as the packing of the slack wax specially when the oil content is not more than 10%.

Analysis of slack wax

Product name

Oil content

Melting  Point

Congealing  Point


flash point c

Viscosity @ 100 ˚C

Sw 10


55-57  ˚C

54-56  ˚C



5  cst

SW 30


52-55  ˚C

50-53  ˚C



6  cst

SW 15


54-60  ˚C

53-58  ˚C



7 cst