Princess Auto sells tubes of instant metal. It is cheap like borscht. It was on sale last fall and I bought a dozen tubes. $2 instead of $3. It is a very good bedding compound. It has one problem. It only comes in one color, black.
You need to be very well prepared to use this stuff. It sets rock hard in under 10 minutes. It has the advantage of being in a stick form and you just cut off as much as required for the job with a putty knife, mix it up and put it in place. It doesn't run all over the place so no playdough dams are needed.
This stuff even sticks to plastic with only the least bit of surface roughing.
BE CAREFUL if you decide to try this stuff. It sticks to anything. You can't use enough release agent. I heat up a can of Kiwi shoe polish and smear it on very thick. Pam just isn't good enough for this stuff.
I played with it bedding several old Cooey 22s before doing a centerfire rifle. It is great stuff. I had a Ruger #1 brought in that had the screws stripped on the sight base. Used this stuff to fill in the holes and after gooping up the screws turned them into the holes. The threads were perfect and are still holding well after several hundred shots. It is chambered in 7mm Rem Mag.
It also repairs leaks in gas tanks and fills cracks in cast iron to stop leaks. I suspect it would do the same on aluminum castings.
I went out to the shop and brought in a tube. It's made by VersaChem and marketed as Magnum Steel.
