This mechanical caulking gun MG 200 ERGO from wolfcraft is used for polyurethane joints, chemical sealing, gluing, and for repairs. This mechanical caulking gun is suitable for use with silicone, acrylic and so on. It fits all materials in 310 ml cartridges with a diameter of 50 mm, and changing cartridges is very easy. With the automatic drip-stop function, this mechanical caulking gun effectively prevents the caulk from oozing out after the trigger is released. Its ergonomic handle design and rotating grip sleeve ensure fatigue-free and easy operation.