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Peptisers

Peptisers promote the reduction of polymer molecular weight thus increasing the efficiency of rubber mastication. The resulting reduced viscosity and nerve translate to improved processability of the polymer and of the compounds mixed with it. Our dispersed peptisers ensure a much faster incorporation than traditional peptisers, have a far superior distribution, overcome troublesome localised hot spots, and improve batch-to-batch uniformity.

Struktol® A 82
  • Blend of organic metallic complexes, peptiser and organic and inorganic dispersing agents
  • Bluish-grey pastilles

Packaging: 20 kg bags
Density: 1430 kg/m3
Melting point: 53 °C
Dosage: 0.8 - 2 phr

  • Viscosity reduction of natural rubber by means of chemical cleavage of polymer molecules
  • Faster distribution due to higher dispersion content
  • Effective on open mills from 80 °C and in internal mixers up to 160 °C
  • DBD content: 2.5 %
Struktol® A 86
  • Blend of organic metallic complexes, peptiser and organic and inorganic dispersing agents
  • Bluish-grey pastilles

Packaging: 20 kg bags
Density: 1260 kg/m3
Melting point: 55 °C
Dosage: 0.2 - 0.5 phr

  • Optimum balance of viscosity reduction and batch uniformity
  • Design focused on high efficiency together with excellent dispersion
  • DBD content: 12 %
Struktol® A 89
  • Blend of organic metallic complexes, peptiser and organic and inorganic dispersing agents
  • Bluish-grey pastilles

Packaging: bags of 20 kg
Density: 1100 kg/m3
Melting point: 52 °C
Dosage: 0.1 - 0.3 phr

  • Highest available rate of efficiency
  • Very fast chemical chain scission during mastication
  • Effective at very low dosage
  • DBD content: 40 %
Struktol® HT 105
  • Blend of metal soaps and an aromatic disulphide
  • Beige pastilles

Packaging: 20 kg bags
Density: 1050 kg/m3
Melting point: 95 °C
Dosage: 1 - 3 phr

  • Viscosity reduction of natural rubber through mild mastication, improving the dynamic properties
  • Peptising effect even in presence of carbon black, leading to a possible mixing step cut
  • Not discolouring
  • Effective at low temperature on open mill mixing
Struktol® HT 106
  • Blend of metal soaps and an aromatic disulphide
  • Light yellowish pastilles

Packaging: 20 kg bags
Density: 1050 kg/m³
Melting point: 55 °C
Dosage: 1 - 3 phr

  • Zinc free version of HT 105
  • Removal of zinc soap carrier offers additional potential for use in steel cord bonding compounds
  • Not discolouring
Struktol® HT 107
  • Blend of organo metal complex and organic and inorganic dispersing agent
  • Bluish pastilles

Packaging: 20 kg bags
Density: 1180 kg/m³
Melting point (DSC): 105 °C
Dosage: 0.2 - 0.5 phr

  • Aggressive peptising action in pre-mastication mixing, resulting in strong viscosity reduction due to maximum chain-breaking
  • Large increase in tack
  • DBD free peptiser
Struktol® HT 189
  • Blend of organic metallic complexes, peptiser and organic dispersing agents
  • Bluish pastilles

Packaging: 20 kg bags
Density: 1060 kg/m³
Melting point: 54 °C
Dosage: 0.1 - 0.3 phr

  • Viscosity reduction of natural rubber by means of chemical cleavage of polymer  chains
  • Optimised balance of viscosity reduction and dispersibility leading to high efficiency and good batch uniformity