I used 4" wide Eternabond sealer tape, works great.
On my prior '05' Eagle TT slide I used a hot air blow dryer to remove the old OEM tape and cleaned the surface prior to applying the Eternabond tape. The screw heads were coming through the old tape.
On my new '18' Jay Flight TT slide I applied Eternabond over the existing 'thin' OEM tape because it wasn't compromised yet....., cleaned the surface area prior to applying the Eternabond.
Bob
__________________
2016 GM 2500HD 6.0L/4.10
2018 Jay Flight 24RBS
2002 GM 2500HD 6.0L/4:10 (retired)
2005 Jayco Eagle 278FBS (retired)
1999 Jayco Eagle 246FB (retired)
Reese HP Dual Cam (Strait-Line)