Caulking Gun 11in 400ml Steel Skeleton Sealant Applicator

A practical sealant gun for applying mastic, sealant and similar cartridge-based products with steady hand control. Built with an 11in steel skeleton frame, it is suited to 400ml cartridges and gives a straightforward way to handle common sealing jobs.

Used for bathroom sealing, kitchen fitting, window work, general DIY repairs and maintenance jobs around the home or workshop, this cartridge gun for sealant helps when a controlled bead is needed along joints, edges and gaps. It is also useful for trade use on routine fitting and sealing work where standard cartridges are used regularly. When working on tidy finishing jobs, the release lever helps reduce excess pressure so application is easier to manage.

The steel skeleton frame keeps the gun simple and easy to use, while the handle, plunger and release lever provide the basic control needed for repeated cartridge application. It is suitable for most 380 to 425ml cartridges, giving a practical fit for common sealant and mastic sizes rather than a single exact cartridge only. The open skeleton style also makes cartridge changes straightforward and helps with quick visual checking while working. For regular maintenance, fitting and sealing tasks, it is a useful option to keep close to hand.

Sealant gun specifications

• Size: 11in frame for sealant, mastic and similar cartridge-based products.
• Capacity range: Suitable for most 380 to 425ml cartridges, including 400ml sizes.
• Material: Steel skeleton frame for everyday garage, trade or DIY use.

Mastic gun handling and applications

• Handling: Fitted with a handle, plunger and release lever for controlled application.
• Application: Useful for mastic, sealant and general caulking jobs around joints, gaps and edges.

A straightforward caulking gun for everyday sealing, fitting and repair work.