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Santoflex™ 77PD

HSP Distance with PowerNox™ 1520: 0.9
Santoflex™ 77PD by Eastman is N,N'-Bis(1,4-dimethylpentyl)-p-phenylenediamine. Acts as an antiozonant. Provides stabilization for a wide range of solution and emulsion polymerized elastomers that can tolerate discoloration, protection against catalytic degradation by copper and other heavy metals. Due to its high solubility in rubber, it does not bloom or easily leach from compounds even at high concentrations. It does protects rubber well against ozone attack in static applications, but does not contribute greatly to protection from ozone in dynamic applications. Therefore for applications also requiring dynamic ozone and flex fatigue protection an alkyl-arylparaphenylene diamine (PPD) such as Santoflex™ 6PPD should be added. Compatible with natural and synthetic elastomer compounds, particularly in static applications for compounds containing no wax. Santoflex™ 77PD is suitable for use in aircraft, OTR, mobile homes, and agricultural equipment, as well as structural mounts, fixed hoses, gaskets.
Product Type
Other Additives for Rubbers > Antiozonants
Chemical Composition
CAS Number
SpecialChem additionnal informations based on CAS Number : 3081-14-9

Hansen Solubility Parameters

[17.3, 3.1, 5.1]
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Santoflex™ 77PD. A practical determination of these HSP values would provide higher certainty. Learn More.

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