Antidegradants

One class of free radical scavengers consists of antidegradants. The amount of cure inhibition they exhibit depends on the particular chemical. Figure 8 shows the effects of various antioxidants in a formulation containing 100 phr of EPDM, dicumyl peroxide as indicated, and 0.5 phr of antioxidant.
VANOX® ZMTI Antioxidant for effective heat-aging resistance

VANOX® ZMTI Antioxidant for effective heat-aging resistance

A non-discoloring, nonstaining antioxidant for NR and SR. Provides effective heat-aging resistance and flex-fatigue protection in EPDM and NBR. Synergist with AGERITE® STALITE® S Antioxidant or AGERITE® RESIN D® Antioxidant for high temperature service. Offers excellent flex resistance in NR and CR with AGERITE® SUPERFLEX® SOLID G Antioxidant.
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AGERITE® Resin D® Antioxidant

AGERITE® Resin D® Antioxidant

This product is a non-blooing, lower-melting hydroquinoline antioxidant that retards oxidation and heat degradation under severe aging, especially in XLPE.
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VANOX® CDPA Solid Antioxidant

VANOX® CDPA Solid Antioxidant

High molecular weight antioxidant for BR, CR, EPDM, NBR, NR and SBR. Slightly staining and discoloring. Provides excellent heat age protection, especially when used with VANOX ZMTI.
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