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樂泰® 770™ is used to make polyolefin and other low energy surfaces suitable for bonding with 樂泰 cyanoacrylate adhesives. On such treated surfaces the cured performance of 樂泰® cyanoacrylate adhesives is generally similar to that described in the TDS for the relevant adhesive. It is only recommended for difficult to bond substrates which include polyethylene, polypropylene, polytetrafluoroethylene (PTFE) and thermoplastic rubber materials. 樂泰® 770™ Polyolefin Primer is not recommended in assemblies where high peel strength is required. TYPICAL PROPERTIES Specific Gravity @ 25 °C 0.68 Viscosity @ 20 °C, mPa•s (cP) 1.25 Drying Time @ 20 °C, seconds ≤30 On Part Life, hours ≤8 Flash Point - See MSDS TYPICAL PERFORMANCE Fixture time and cure speed achieved as a result of using 樂泰® 770™ depend on the adhesive used and the substrate bonded. Effect on Cure Speed of Cyanoacrylate Adhesives 樂泰® 770™ also behaves as an activator and accelerates the cure speed of cyanoacrylate adhesives. Fixturing time on most primed substrates is less than 5 seconds but 24 hours at room temperature (22 °C) should be allowed for adhesive t |
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