The Harden 15-inch Aluminium Caulking Gun (Model 620419) is a professional-grade manual tool designed for applying sealants, adhesives, and silicone. Constructed with a lightweight aluminium frame and built for high-thrust performance, this caulking gun delivers smooth and controlled dispensing for construction, finishing, and renovation tasks.

Technical Specifications:

• Model: 620419

• Barrel Length: 15″

• Material: Aluminium body with steel mechanism for strength

• Thrust Ratio: High thrust ratio for efficient application

• Compatible Cartridges: Supports sausage packs and standard sealant cartridges

Applications:

• Dispensing silicone, sealants, and adhesives in construction and renovation

• Roofing, window and door sealing, and gap filling

• Precise application for finishing, bathroom, and kitchen installations

• DIY, professional finishing, and industrial caulking tasks

Key Features & Benefits:

• Lightweight Construction: Aluminium frame keeps the gun easy to handle while maintaining durability

• High Thrust Efficiency: Strong dispensing force for thick sealants or large volumes

• Durable Build: Steel components in the mechanism ensure long-term reliability

• Smooth Operation: Manual trigger allows controlled extrusion