ELASTOSIL® R plus 4105/40 US may not be cured with peroxides, only with the catalyst batch ELASTOSIL® AUX PT1.


ELASTOSIL® R plus 4105/40 US and Curing Agent PT 1 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 1 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.

Vertrieb & Support

Wacker Chemie AG
Heilbronner Strasse 74
70191 Stuttgart
+49  711  61942-0 (Phone)
+49 711 61942-61  (Fax)

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