Spanesi

December 9, 2024

Pull-Up! Panel Pulling Operation

The basic process of preparing the substrate, gluing a pull tab to the surface, and extracting the damage.

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The basic process of preparing the substrate, gluing a pull tab to the surface, and extracting the damage. This process must be followed to allow for maximum adhesion of the pull tab providing the ability to apply enough force to extract the damage.

01 | Clean

Clean the damaged panel and the desired pull tab with denatured alcohol. The best substrate for glue pulling is a shiny finish. This can be achieved with a light polishing if needed.

02 | Heat

Heat the panel and the pull tab to 140°F. Heating the panel is only to remove any remaining humidity. Moisture between the pull tab and panel will cause pre-mature release of the adhesive.

03 | Adhere

Apply enough adhesive to cover the entire tab contact surface. The glue should be the consistency of toothpaste. Also, the glue should not be boiling as this will introduce air pockets into the adhesive and create a weak bond. When placing the tab on the panel, do not press hard enough to squeeze all of the glue out.

04 | Cool

Allow the tab to cool to 80°F-90°F before attempting to make the pull. A good indicator that the glue is ready for a pull is when the color of the glue changes from shiny to white. To be more precise, monitor the glue temperature with an infrared thermometer. Small tabs will cool very quickly and large tabs may require several minutes to cool down to ideal pulling temperature. Also, steel and aluminum process heat at different rates.

05 | Extract

Use a slide hammer or a pulling device such as the Spanesi Flash to extract the damage. If the tab releases from the panel, apply a small amount of denatured alcohol to release any remaining adhesive. If the tab was pulled too early, the adhesive will string and smear and will typically release pre-maturely. If the tab was pulled too late, the adhesive has become too brittle and will also release prematurely.

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