How to build up adhesion
Posted by GT Marketing

Initial tack is the adhesion you feel when a pressure-sensitive vinyl first contacts a surface. The bond can continue to develop as the adhesive makes contact with the substrate. A quick finger-tack check does not establish how the installed graphic will perform.
Check the material and the surface first
Confirm that the selected film and adhesive are intended for the substrate and application. Follow the current product instructions for surface preparation, application temperature, pressure and any required dwell time. Do not assume that a stronger initial grab means a better match for a removable graphic.
Test the actual installation conditions
Apply a small sample to the same surface finish that will be used on the job. Record the film, surface preparation, temperature, application method and inspection times. Check contact at edges and textured areas, and assess both adhesion and removal where removal is part of the job.
There is no single bonding schedule that can be promised for every vinyl and substrate. Claims such as a bond doubling after one day or reaching final adhesion after seven days require product-specific test evidence. Use the applicable technical data and a representative test instead.
Use heat and tools only as specified
Do not use extra heat as a substitute for selecting a suitable film or meeting its installation conditions. Use a heat gun, rivet brush or other specialist tool only when the film and substrate instructions call for it. Confirm the application method before combining heat with any wet-application process.
Choose the adhesive before ordering
Read our removable versus permanent printable vinyl guide and use sample swatches and test rolls to evaluate the actual job. If the surface or installation method is uncertain, contact product support with those details before production.
