Koresin®

BASF produces Koresin® at its Ludwigshafen plant. The production facility is linked to a pelletizing and packaging line that packs the pellets in 25-kilogram bags and bulk bags.


Koresin® production and filling operations have been certified in keeping with ISO 9001:2000.

Our customers may order Koresin for delivery on plastic pallets. The carriers made of recycled plastics have been introduced in response to changes in customer demand: BASF uses the plastic pallets to meet the quality and reliability requirements of the tire and rubber industries.

Outstanding Advantages

  • high and long-term tackiness of rubber compounds made from natural or synthetic rubbers
  • no effect on rubber vulcanization process
  • physical characteristics of the vulcanized rubber remain nearly unchanged
  • improved rubber extrudability and improved resistance of rubber goods to ageing caused by exposure to heat and dynamic load
  • better dispersion of carbon black
  • process reliability and unparalleled performance

Technical Information

Test Criteria Specification Test Method
Ubbelohde dropping point 140 – 160 °C DIN 51801
Ring and ball softening point 135 – 150 °C DIN 52011
Solubility in hydrocarbons soluble BASF method
Physical form yellow to brown pellets & powder
Odor almost odorless
Softening point (ball and ring/DIN 52011) 135 – 150 °C
Dropping point (Ubbelohde/DIN 51801) 140 – 160 °C
Density (20 °C) 1.02 – 1.04 g/cm3
Solubility soluble in hydrocarbons
Storage stability 2 years

Trust in Superior Tackiness

The tackiness curves of various tackifiers identify Koresin® as the superior short- and long-term tackifier. Similar results have been observed e.g. for steel cord (100% NR) and side wall compounds (NR:BR:EPDM 35:35:30).

Koresin® customers round the world have for years confirmed the superior tackiness performance in all kinds of tires and rubber articles.

Influence on Vulcanization

Another major advantage of Koresin® compared to other tackifiers: Koresin® has hardly any impact on the vulcanization behavior of the rubber mixes. In particular, the essential scorch time remains virtually unaffected if you add Koresin®. Users therefore enjoy improved process reliability. The positive cure behavior of Koresin® can be verified at various dosages of Koresin® and in different polymer systems.

Innovation in Logistics to Meet Most Demanding Expectations

BASF produces Koresin at its Ludwigshafen plant. The production facility is linked to a pelletizing and packaging line that packs the pellets in 25-kilogram bags and bulk bags. Koresin production and filling operations have been certified in keeping with ISO 9001:2000. Our customers may order Koresin for delivery on plastic pallets. The carriers made of recycled plastics have been introduced in response to changes in customer demand: BASF uses the plastic pallets to meet the quality and reliability requirements of the tire and rubber industries.