The classic hobby putty: Green Stuff (Kneadatite) is a two-part epoxy — knead the blue and yellow strips together and you get 20-30 minutes of working time to fill kit seams, blend gaps on locomotive shells, bed structures into terrain, or sculpt details outright. It cures hard in about 8 hours, sands cleanly, and takes paint beautifully.
Shape it with the Sculpting Tools, and it's also the classic way to seat miniature magnets into parts.
How much do I mix at once?
Cut equal slices of blue and yellow and knead until no marbling remains. Mix only what you'll use in ~25 minutes.
Can I sand and drill it?
Yes — after full cure it machines like a slightly flexible plastic: sand, file, drill, and carve freely.
Does it stick to fingers?
Fresh putty is tacky — wet your fingertips and tools with water and it handles cleanly.
