Should I use glue or plastic welding for auto plastic?

While part of the answer depends on what component is in question, generally speaking, ultrasonic plastic welding is the ideal choice for joining two plastic components of the same materials. Plastic welding can form stronger, longer lasting bonds than adhesives, often at a lower cost per joint (since you’re not purchasing consumable glue materials). That said, some light-duty trim, cosmetic and fabric components will be better suited to gluing for simplicity and cost reasons. We suggest contacting us to review and advise on the best solution for your application.