Chemicals for the Plastics & Polymer Industry
The plastics and polymer processing industry depends on heat stabilisers, lubricants, flame retardants, and processing aids. MITCHEM supplies metal stearates (calcium, zinc, barium, magnesium, aluminium, lead), zinc oxide, and paraffin wax as essential additives in PVC compounding, polyolefin processing, and engineering plastic formulations — from rigid pipe extrusion to flexible cable sheathing.
Key Products8+
FunctionsStabiliser, Lubricant, FR, Activator
PVC FocusStearates + ZnO
GradesTechnical to Specialty
Key Products for Plastics & Polymers
Click any product for full specifications, available grades, and quote form.
Calcium Stearate
CAS: 1592-23-0 | HS: 29157010
Ca(C₁₇H₃₅COO)₂ | 607.02 g/mol
Internal lubricant and processing aid in PVC — reduces friction during melt processing and improves surface finish on pipes, profiles, and sheeting. Foundation of Ca/Zn stabiliser systems.
Zinc Stearate
CAS: 557-05-1 | HS: 29157010
Zn(C₁₇H₃₅COO)₂ | 632.33 g/mol
Primary heat stabiliser and external lubricant in PVC. In combination with calcium stearate, provides effective long-term heat stability in Ca/Zn systems meeting REACH and FDA requirements.
Barium Stearate
CAS: 6865-35-6 | HS: 29157090
Ba(C₁₇H₃₅COO)₂ | 704.27 g/mol
Excellent initial colour hold and transparency in rigid PVC. Works synergistically with zinc stearate in Ba/Zn stabiliser systems for balanced long-term heat stability.
Magnesium Stearate
CAS: 557-04-0 | HS: 29157010
Mg(C₁₇H₃₅COO)₂ | 591.27 g/mol
Internal lubricant in engineering plastics compounding — reduces equipment wear and improves melt flow in glass-fibre reinforced nylon, polycarbonate, and ABS formulations.
Aluminium Stearate
CAS: 637-12-7 | HS: 29157090
Al(C₁₇H₃₅COO)₃ | 877.39 g/mol
Thickening and anti-sagging agent in oil-extended PVC plastisols and high-build industrial coatings. Also used as a heat stabiliser in PVC requiring excellent gelation.
Zinc Oxide
CAS: 1314-13-2 | HS: 28170010
ZnO | 81.39 g/mol
Vulcanisation activator in rubber-toughened plastics and functional additive in PVC — imparts antimicrobial properties and improves UV stability in outdoor plastic applications.
Lead Stearate
CAS: 1072-35-1 | HS: 29157090
Pb(C₁₇H₃₅COO)₂ | 774.14 g/mol
Legacy heat stabiliser and lubricant in industrial PVC compounds including electrical cable insulation — provides excellent long-term heat stability and dielectric properties in non-consumer applications.
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