Infomercial? What was that article called that be on an infomercial where it...

What was that article called that be on an infomercial where it be like cement and all you did be like mix it next apply it almost stuck to everything extremely hard?
Combi boiler problem, can I fix it myself?
Answers:    could be a couple things. 1- JB weld, used mostly for metal or 2- 2part epoxy, different types to adheire to different things. hope ya find what ya lookn' for. glowing holidays..
The electric pilot on my stove won't stop...
It's called Mighty Putty (I see too much TV). They sell similar products surrounded by stores and a tried and true two-part epoxy can be found through Marine-Tex.