Patent ID: 7527421

Claim:
A method for preparing a cartridge of tinted caulking, said method comprising the steps of: (a) providing an elongate cylindrical cartridge having a nozzle end, an open end, and an interior chamber with a cylindrical wall; (b) providing a quantity of caulking scalingly enclosed in and partially filling an elongate, pliable casing, at least a portion of said casing being transparent; (c) providing a plug member having a circular perimeter edge, said plug member being movable longitudinally within the interior chamber of the cartridge with said perimeter edge in sliding engagement with the cylindrical wall of the cartridge; (d) unsealing one end of the casing; (e) introducing a quantity of tinting agent into the casing, said tinting agent being miscible with the caulking; (f) resealing the unsealed end of the casing; (g) kneading the caulking and tinting agent within the casing until the caulking is of a substantially uniformly colour; (h) unsealing one end of the casing, and inserting the casing, unsealed end first, into the open end of the cartridge; and (i) inserting the plug member into the open end of the cartridge.