While it may seem like an effective solution due to its strong adhesive properties, ultimate glue is not suitable for use on musical instruments. The glue can be too thick and viscous, potentially affecting the sound quality and playability of the guitar. Additionally, it may not provide a secure bond that can withstand the tension and vibrations of the strings.
To repair a guitar bridge, it's crucial to use a glue specifically formulated for instrument repairs, such as water-based aliphatic resin glue or hide glue. These glues provide a strong, flexible bond that is less likely to damage the guitar's finish or affect its sound quality. They also allow for easy cleanup and any adjustments if necessary.