Caulking Gun
Caulking guns are allowed in carry-on and checked bags without restriction.
Carry-on
Allowed
Checked
Allowed
Carry-on details
Allowed. An empty caulking gun has no blade and no restriction. If it's loaded with a tube of caulk or sealant, the sealant itself is a liquid/gel and follows the standard 3.4 oz carry-on liquids rule.
Checked-bag details
Allowed. No restriction in checked baggage, including with a loaded caulk tube.
Special instructions
If bringing a loaded caulk or sealant tube in carry-on, check its size against the 3.4 oz liquids limit — most standard tubes are too large and should go in checked baggage instead.
Related rules
FAQ
- Does a tube of caulk loaded in the gun count as a liquid?
- Yes — caulk and sealant are gels and follow the standard 3.4 oz carry-on liquids rule. Most full-size tubes exceed this and should go in checked baggage.
Related items
Source: TSA — What Can I Bring? · Last verified: 2026-08-02
Final decision rests with the security officer at the checkpoint.