Heavy Duty Metal Caulking Gun – 310ml | Silicone & Mastic Sealant

A reliable, all-metal Heavy Duty Caulking Gun built for repeated professional use. The metal frame withstands the pressure of thick sealants without flexing, and the smooth-action trigger gives controlled, consistent flow — eliminating the waste and mess of cheap plastic alternatives.

Compatibility & Trade Use Cases

• Cartridge size: Standard 310ml cartridges (the UK trade standard for silicone, mastic, fire stopping, and adhesive sealants)
• Sealant types: Silicone, acrylic mastic, polyurethane, fire-rated sealant, grab adhesive, and frame sealant
• Applications: Window and door frame sealing, wet room and bathroom silicone, kitchen fitting, expansion joint filling, fire stopping penetrations, and general building adhesive work
• Trades: Builders, joiners, plumbers, glaziers, bathroom fitters, and site labourers

Key Specifications

• Frame material: Heavy-duty metal
• Cartridge compatibility: Standard 310ml sealant cartridges
• Loading mechanism: Pull-back rod for quick, tool-free cartridge insertion
• Trigger action: Smooth ratchet trigger for controlled sealant flow
• Dimensions: L31.5 x W15.5 x D5.5 cm
• Packaged weight: 0.302 kg
• Packaging: Hang tag

Note: Packaging may vary.