ELASTOSIL® R plus 4000/60 US
ELASTOSIL® R plus 4000/60 US may not be cured with peroxides, only with the catalyst batch ELASTOSIL® AUX PT2.
ELASTOSIL® R plus 4000/60 US and Curing Agent PT 2 are mixed homogeneously on a roll mill in a ratio of 100 : 1.5. Care must be taken to keep the mill and compound as cool as possible during mixing.
The temperature of the rubber should not exceed 35°C, or risk partial curing and reduced pot life.
Crosslinking begins when Curing Agent PT 2 has been added. The rate and degree of crosslinking depends on the storage time and temperature. At 23°C, the mixture has a pot life of about 6-8 hours. This can be extended by storing the catalyzed mixture at a lower temperature.