SP-103 is a phenolic resin used for the manufacture of polychloroprene cement and adhesives because of its light color and ability to extend open time.
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SP-103 is an alkylphenol–formaldehyde resin explicitly developed for general-purpose and heat-activating polychloroprene cement. It extends the tack life of polychloroprene contact cement. SP-103 increases films’ adhesion and cohesive strength to metal and glass. It is also used in rubber-based adhesives, including NBR, SBR, natural, and reclaimed rubbers.
Form: Solid flakes
Specific gravity: 1.10
Softening point (ball and ring): 87°C–95°C
Methylol content: 8.0%–11.0%
Primary Chemistry: Alkylphenol–formaldehyde resin
Compatible with polychloroprene and nitrile rubbers up to 25 parts per 100 parts of rubber
Extended tackiness and improved adhesion to metals and glass
Easily mixed with solvents for solution preparation
Can be milled into rubber stocks
Compatibility issues of phenolic resins with polychloroprene or nitrile rubbers
Short life of tackiness in cements or adhesives
Adhesion issues of adhesives or contact cement to glass and metals
Polychloroprene contact cement
NBR, SBR, natural, and reclaimed rubber
Adhesives
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