SP-134 is a modified alkylphenol-formaldehyde resin that is excellent for use in polychloroprene cement and rubber adhesives.
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SP-134 is made by the reaction of formaldehyde with a phenol derivative listed in 21 CFR 175.300(b)(3)(vi)(a).
SP-134 is widely used in manufacturing general-purpose and heat-activating polychloroprene cement. It is also used in rubber adhesive formulations, including NBR, SBR, natural, and reclaimed rubbers.
Physical form: Solid flakes
Specific gravity: 1.10
Color, Gardner, 64% in toluene: 1.0–7.0 Methylol content: 13.0%–18.0%
Primary Chemistry:
Alkylphenol-formaldehyde resin
Short or limited open time in contact cement and rubber adhesives
General-purpose and heat-activating polychloroprene cements NBR, SBR, and natural rubber adhesives
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