ZBPD is a special accelerator for EPDM containing sulfur, ZnO, thiazoles and thiurams accelerators. It can lead to high degree of cross-linking and non-blooming when dosage is up to maximum recommended amount. May not formed harmful nitrosamines during vulcanizing process.
Dosage: Usually is 2-4phr. If used in compound with large amount of fillers(carbon black, mineral fillers or processing oil), the best dosage of ZBPD-50GE can be up to appro. to 5phr.
ZBPD-50 2.0 - 3.4 phr ZBPD-50 2.0 - 3.4 phr
TMTM-80 0.3 - 0.6 phr TMTD-80 0.3 - 1.0 phr
MBTS-80 0.6 - 0.9 phr MBT-80 0.6 - 1.9 phr
S-80 0.3 - 0.6 phr S-80 1.2 - 3.2 phr