SP-1044 is a heat-reactive resin that is based on octylphenol and formaldehyde. The product is excellent for curing Isobutylene-Isoprene (Butyl) rubbers.
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SP-1044 is excellent for use in curing butyl rubbers and elastomers. SP-1044, used in combination with halogen and zinc donors, yields butyl vulcanizates with outstanding resistance to high heat and compression set.
Vulcanizates cured with SP-1044 are non-blooming, non-staining, and have high modulus values.
Physical form: Solid flakes
Specific gravity: 1.04
Softening point (Ball and Ring): 80-90°C
Methylol content: 7.5-9.5%
Primary Chemistry: Octylphenol and formaldehyde phenolic resin
Heat reactive resin
Excellent resistance to heat and compression set
Non-blooming and non-staining
Low resistance of cured butyl vulcanizates to heat and compression set
Compatibility issues of phenolic resins with other elastomers
Tire curing bladders, conveyor belts, gaskets, and heat resistant packing compounds
Rosin for printing inks
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