HRJ-10518 is a heat-reactive resin based on octylphenol and formaldehyde. It is explicitly developed to cure natural rubber and unsaturated elastomers.
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HRJ-10518 is excellent for use in curing natural rubber and unsaturated elastomers. It cross-links rubber through C-C bridges, providing inherent ozone resistance and heat resistance to cured rubber systems.
Due to its high reactivity, HRJ-10518 is a reliable choice for elastomeric systems where an increased cure rate or a low-temperature cure cycle is desired. HRJ-10518 features a low melting point for easy blending with rubber stock.
When combined with catalysts, such as halide-bearing elastomers and metallic chlorides, HRJ-10518 provides outstanding resistance to high dry heat and compression set.
Physical form: Solid flakes
Specific gravity: 1.05
Softening point (ball and ring): 80°C–95°C
Methylol content: 6.0%–9.0%
Primary Chemistry: Octylphenol and formaldehyde phenolic resin
Highly reactive phenolic resin
Excellent ozone and heat resistance
Outstanding resistance to high dry heat and compression set
Low melting temperature and easily blended in rubber stocks
Low reactivity in traditional phenolic resins
Poor resistance to ozone or heat in adhesives
Difficulties blending with rubber stocks
Natural rubber and unsaturated elastomers
Rubber and elastomeric tapes
Tire curing bags, conveyor belts, gaskets, and heat-resistant packings
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