Butyl rubber sealing tape . 3/4″ x 30′ ( Sometimes referred to as ” Dum Dum Putty”)
- INDUSTRIAL-GRADE AUTOMOBILE, HOME, AND RV BUTYL TAPE. The XFasten Butyl Sealant Tape is a waterproof vacuum sealing tape that delivers airtight and weatherproof repairs for automobile and RV repairs, Window Glazing, and Roof Seaming. It doesn’t harden or crack even in freezing weather. It will not melt, soften or ooze out even in sweltering and humid weather conditions.