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Speedblock AO1

Technical Datasheet | Supplied by Lambson (Sartomer)
Speedblock AO1 by Lambson (Sartomer) is tetrakis[methylene(3,5-di-tert-butyl-4-hydroxyhydro-cinnamate)]methane. Acts as a sterically hindered antioxidant. 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 AO1 is compatible with polyethylene, polypropylene, polybutene-1, styrene homo- and copolymers, polyurethane, elastomers. Recommended dosage is 500-2,000 ppm. For polyoelfins, it is 0.1-0.5% depending on substrate. It has a shelf life of 2 years.
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Product Type
Antioxidants > Phenolics
Chemical Composition
Tetrakis[methylene(3,5-di-tert-butyl-4-hydroxyhydro-cinnamate)]methane
CAS Number
6683-19-8

Compatiblity with other products

Find products that are predicted to be compatible with Speedblock AO1.

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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