LOCTITE® SF 770 is a premium-quality surface primer for hard-to-bond materials, ensuring proper bonding of cyanoacrylate adhesives and sealants. It is compatible with polypropylene, polyethylene, rubber, PTFE, and thermoplastic materials and offers a drying time of 9 seconds.
LOCTITE® SF 770 is a low-viscosity, aliphatic-amine instant adhesive primer formulated with an isopropyl acetate solvent. It is recommended to enhance the bonding of cyanoacrylate adhesives and sealants when bonding to difficult substrates with low surface energy, such as rubber, polypropylene, polyethylene, polytetrafluoroethylene, and thermoplastic rubber materials. LOCTITE® SF 770 provides positive fluorescence under UV light for optimal quality control and inspection.
LOCTITE® SF 770 is not recommended for application where high peel strength is required.
Appearance: Transparent to slightly hazy liquid
Specific Gravity @ 23°C: 0.87
Viscosity, Cone & Plate, 25°C, mPa·s (cP): 0.62
Drying Time @ 23°C, steel, seconds: 9
Drying Time @ 23°C, polypropylene, seconds: 9
Drying Time @ 23°C, polyethylene, seconds: 8
On Part Life, hours: 8
Slow cure of LOCTITE® cyanoacrylate adhesives and sealants Poor adhesion to difficult-to-bond substrates
Primer for cyanoacrylate adhesives and sealants
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