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Speedblock AO2

Technical Datasheet | Supplied by Lambson (Sartomer)
Speedblock AO2 by Lambson (Sartomer) is octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate. Acts as a sterically hindered antioxidant. This antioxidant hinders thermally induced oxidation of polymers in coatings. It works by trapping free radicals formed upon heating in the presence of oxygen and prevents the discoloration or change of the resins mechanical properties. It is non-polluting, non-toxic with good heat and water resisting performance. It can be used in combination with other additives such as co-stabilizers, light stabilizers and other functional stabilizers. Speedblock AO2 is compatible with polyethylene, polypropylene, polybutene-1, styrene homo- and copolymers, polyurethane, elastomers. Recommended dosage is 500-2,000 ppm. For polyoelfins, it is 0.1-0.4% depending on substrate. It has a shelf life of 2 years.
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Product Type
Antioxidants > Phenolics
Chemical Composition
Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
CAS Number
2082-79-3

Compatiblity with other products

Find products that are predicted to be compatible with Speedblock AO2.

This list of compatible products is generated out of estimated HSP values. A practical determination of these HSP values would provide higher certainty.
Learn more about Hansen Solubility Parameters (HSP) and their use in predictive formulation.

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