RTV as muffler patch?

Go to the parts store and buy some good quality muffler and pipe wrap. I just used some on my Aunts old Suburban that just sits mostly. She did'nt want to spend money replacing parts. It comes with some thin metal that you wrap,and comes with an impregnated bandage ( with I don't know) that you wrap around that. And they give you mechanics wire to secure the bandage with. Worked real good , and this was on a pipe to converter joint that was 3/4 the way open. Surprised me ! I usually won't use Snake Oils