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Recommendations For Applying UHMW Tapes
Proper surface preparation is the most critical element in the laminating operation. Products supplied with pressure sensitive tapes are subject to breakdown when in contact with contaminated surfaces.
A conscious effort on the part of the installer is required. The substrate should be as smooth and clean as possible. To prepare the substrate for bonding, wipe with a clean cloth. If oil or heavy contamination is present, you may need to use a totally evaporating solvent such as lacquer thinner or MEK. If only light soil and surface dust is present, an isopropyl wipe should be sufficient. Turn the cloth frequently to avoid decontaminating the surface.
When clean and dry apply the pressure sensitive system. Be careful when pulling off the release liner, refraining from contact with the adhesive as this could potentially reduce bond strength. It is recommended that when applying long lengths, only remove 24" to 36" of liner at a time to make it easier to control. Once the product has been installed, a "J" roller or hand roller should be used to assure proper pressure and secure the bond. It is recommended that the temperature be above 50 degrees Fahrenheit when applying pressure sensitive tapes.
Removing or Replacing UHMW Tapes
When removing UHMW tapes, pry up one corner with a screwdriver or scraper and peel the plastic strip up using a pliers or vice grip. Remove residual adhesive using a clean rag and solvent such as lacquer thinner or permissible solvent. Do not use mineral spirits as it is oil based and will leave a residual film.
If the adhesive used was an Avery 8345, the adhesive uses a .0005" mylar carrier as a support. When removing the adhesive, you may need to scrape the residue to break through this carrier. The remaining adhesive can be removed by wiping with a rag and solvent. Make sure the surface is clean and dry before applying new UHMW.