I know everyone uses the Devcon stuff to bed actions. I assume because it has a thicker consistency. The Devcon temp rating is 250F max. Any reason NOT to use JB weld steel reinforced? It has a max temp of 550F. beside being kinda runny, I would like to use it instead. I think the PSI rating on the JB is higher also. Any down sides? Use the same types of mold release?.(I will be using either Johnson paste wax -or Kiwi shoe polish).