• It is used to obtain leak proof joints.
• This operation is carried out by using narrow blunt tool called caulking tool.
• In this process, a narrow blunt tool called caulking tool, about 5 mm thick and 38 mm in breadth, is used.
• The edge of the tool is ground to an angle of 80°.
• The tool is moved after each blow along the edge of the plate, which is planed to a bevel of 75° to 80° to facilitate the forcing down of edge
• Surface finish obtained is less compared to fullering.
• More risk of damaging the plates.

Caulking Tool

Fullering:

• It is used to obtain leak proof joints.
• It is carried out by using fullering tools.
• The thickness of tool is equal to the thickness of the plate.
• It is gives clean surface finish.
• Less risk of damaging the plates.

Fullering Tool