RAYWAY™ Rubber Antioxidant MBZ

MBZ is mainly used as an antioxidant for rubber. Its performance is similar to that of MB, but it improves some of the shortcomings of MB, such as reducing the unstable effect of latex, extending and maintaining its action time, and preventing copper damage when used with thiazole accelerators. The product is weak when used alone, and can increase its effectiveness when used with other antioxidants. The antioxidant MBZ is a good auxiliary thermal sensitiser in latexes and is also a good gelling agent. The dosage is 2.0 parts.


Molecular Formula: C14H10N4S2Zn
Molecular Weight: 363.77
CAS NO: 3030-80-6

Item Powder Oiled powder
Appearance White powder
Decomposition point ℃ ≥ 270 270
Loss on drying % ≤ 1.50 1.50
Zinc content % 18.0-20.0 18.0-20.0
Residue on 150μm sieve % ≤ 0.50 0.50
Additive % 0.1-2.0

White powder

Product Data

No smell but taste bitter. Soluble in acetone, alcohol, insoluble in benzene gasoline and water


Used as an antioxidant for natural rubber, diene synthetic rubber and their latexes. Similar to the antioxidant MB, it has the effect of breaking down peroxides. As it is a zinc salt, it can be used directly without ageing. The product has excellent heat resistance. When the MBZ is used as an auxiliary thermal sensitiser for latex foams, resulting in homogeneous foam products.


It should be stored in a cool, dry and well-ventilated place. Packaged products should be protected from direct rabbit sunlight and are valid for 2 years.


25kg plastic woven bags, paper-plastic composite bags, and kraft paper bags.