HELP Heat block welding paste

[gunner]

Hello can any one help looking for a product called MAGNA welding paste it is a reusable heat paste green in colour as restoring some classic car panel work and need to restrict the heat in some panels thanks        


                      Now away for a week but any help

[blackbob]

use a damp rag works wonders

[Range Rover Blues]

Also called cold front.  Does the trick but I use an old vest full of cold wet sand.  A wet rag also works.