1. In general, caulk guns are often used to extrude polyurethane in the replacement of auto glass related works. We use special materials to meet the high quality requirements.

2. The specification of the caulking gun for hard tube with the item#T5004 are as following:

The length of the tube: 10.5'' inch;

Thickness: 2.0mm;

Net weight: 0.58g;

3. Application: polyurethane sealant 310ml for hard tube.