SP-1045 is a heat-reactive resin that is based on octylphenol and formaldehyde. It is designed for curing butyl rubbers.
SP-1045 is used in combination with halogen and zinc donors to produce butyl vulcanizates with outstanding resistance to high heat and compression set.
Vulcanizates cured with SP-1045 are non-blooming, non-staining, and ozone resistant.
In addition, the reactive methylol groups in SP-1045 can be used as functional sites for a variety of reactions such as with rosin for the printing ink market.
Physical form: Solid flakes
Specific gravity: 1.04
Softening point (Ball and Ring): 80-95°C
Methylol content: 8.0-11.0%
Primary Chemistry: Octylphenol and formaldehyde phenolic resin
Heat reactive resin
Outstanding resistance to heat and compression set
Improved ozone resistance
Non-blooming and non-staining
Low resistance of cured butyl vulcanizates to heat and compression set
Compatibility issues of phenolic resins with rubbers and elastomers
Tire curing bladders
Rubber conveyor belts and gaskets
Heat resistant packing compounds
Printing inks
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