橡膠防老劑 4020/6PPD
Quality specification:
Appearance: purple-brown granule;
Melting point(min): 46.0;
Heating loss(%max): 0.50;
Ash content(%max): 0.30.
Main identity:
-excellent performance against ozone;
-good property of protection against fatigue and flexible cracking;
-prevention from the performance of catalytic degradation caused by heavy metals.
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