- What is Loctite SF 770 used for?
- This primer prepares difficult-to-bond, low-energy plastics such as polyethylene (PE), polypropylene (PP), and PTFE for bonding with cyanoacrylate (instant) adhesives.
- How do you apply this polyolefin primer?
- Apply sparingly to the difficult-to-bond substrate using a brush, spray, or by dipping. Allow the solvent to dry completely before applying the cyanoacrylate adhesive.
- Do you need to apply the primer to both mating surfaces?
- No, apply the primer only to the difficult-to-bond polyolefin surface. More active or easier-to-bond substrates do not require primer treatment.
- How can you verify that the primer has been applied?
- The liquid contains a fluorescent agent that glows under UV light (365 nm), allowing quick visual inspection of the surface coverage.
- Is Loctite SF 770 suitable for assemblies requiring high peel strength?
- No, Loctite SF 770 is not recommended for assemblies where high peel strength is required.