What is the proper procedure for preparing a pinchweld after complete adhesive removal?

The proper procedure for preparing a pinchweld after the complete adhesive removal is to apply glass cleaner. This step is crucial for ensuring that the pinchweld is free from any contaminants, such as dust, oil, or residues from the previous adhesive. Glass cleaner effectively removes these contaminants, providing a clean surface for new adhesive application.

By utilizing glass cleaner, technicians can guarantee that the bonding surface is optimally prepared, which is essential for achieving a strong and durable bond with the new glass. This ensures better adhesion, reduces the chances of leaks, and extends the service life of the installation.

The other options may not provide the necessary cleaning effects or could introduce issues. For example, water alone may not effectively remove oils or residues, and applying metal prep is typically reserved for different surface treatments rather than preparing a pinchweld for glass installation. Using only the scuff method might not adequately clean the area, as it primarily focuses on roughening the surface but might leave behind contaminants that could compromise the adhesive bond.