When you lay the caulking bead, try to push the caulking into the gap instead of dragging it onto the gap. This greatly increases the possibility that the sealant will adhere to both surfaces, as it will press the sealant into the gap without pulling it in.

Advantages:

1.16 "long, 600ml tube, large capacity.

2 aluminum alloy handles, aluminum frame, 10mm powder alloy plate drive, labor saving.

3. The round rod and hook are easy to operate.

4. Cordless glue gun, easy to use and unlimited.