Memphis From United States of America, joined Mar 2006, 143 posts, RR: 0
Reply 1, posted (8 years 8 months 5 days 6 hours ago) and read 2552 times:
I think it's aluminum speed tape, not duct rape. I see it form time to time on A/C. Even seen it being put on, and it looks like what these guys were doing. I figure it's to cover a small opening up till the A/C can be pulled from service to fix the issue. It is my understanding that the stuff is very durable and works well in these applications. It is also my understanding that something similar is used in NASCAR.