Written by Super User

Slack wax is a mixture of oil and wax, obtained from lubricating oil. Slack wax is the crude wax produced by chilling and solvent filter-pressing wax distillate. It serves as feedstock and that is further refined and blended to create value-added petroleum wax products.

Slack Wax is produced by PERTAMINA’s Processing Unit IV Cilacap.





No Properties Test Method Specification
01 Specific gravity 60/60 C ASTM D-1298 To be reported
02 Visco Kinematic at 60 C, Cst ASTM D-445 7.4
03 Visco Kinematic at 100 C, Cst ASTM D-445 3.6
04 Sulphur Content, % wt ASTM D-1552 0.06
05 Flash point Pmcc, F ASTM D-93 435
06 Oil content, % wt ASTM D-721 21


Total Nitrogen, PPM ASTM D-3226 14
08 Melting Point, C ASTM D-67 47