Product Description
Dum Dum, the generic and trademarked name for a class of non-hardening butyl/asphalt automotive body caulks, allegedly contained asbestos fiber as a reinforcing and body-building additive, according to publicly filed asbestos litigation records. The rope-like or ribbon-form caulk was hand-packed into panel seams, trunk drip channels, cowl joints, and around windshield and back-glass openings to block wind, water, and dust intrusion. Removal during collision repair, glass replacement, or restoration allegedly required scraping and heating dried caulk residue — releasing dust and fumes from any asbestos-containing formulation.
Workers Exposed
Auto body technicians, collision repair workers, auto glass installers (during windshield R&R), auto body shop laborers, and used car reconditioning workers allegedly handled Dum Dum during seam sealing, cowl repair, and glass work. DIY auto restoration hobbyists allegedly used Dum Dum rope caulk during body restoration and windshield installation on classic cars, and encountered dried caulk residue during teardown of any older vehicle.