Skeleton Caulking Gun 290ml, 310ml & 400ml

A lightweight manual dispenser designed for applying low‑viscosity sealants, caulks and mastics. The skeleton caulking gun supports 290ml, 310ml and 400ml single‑component cartridges, making it suitable for a wide range of professional and DIY sealing tasks. Its open‑frame skeleton design reduces weight while maintaining durability, allowing comfortable use during extended application.

The gun features a 7:1 trigger ratio for smooth, controlled bead formation and is widely used in construction, maintenance and workshop environments. The skeleton caulking gun is ideal for sealing joints, filling gaps and applying low‑viscosity materials with precision.

Product Benefits

• Ideal for low‑viscosity caulking and sealing
• Supports 290ml, 310ml and 400ml cartridges
• Lightweight and durable skeleton frame
• Smooth manual dispensing
• Suitable for mastic and general sealing applications

Specifications

• Cartridge capacity: 290ml (9.8oz), 310ml (10.5oz), 400ml (13.5oz)
• Trigger ratio: 7:1
• Standard colour: Red

Common Applications for Skeleton Caulking Gun

• General sealing — windows, doors and frames
• Mastic application — interior and exterior joints
• Workshop use — controlled bead dispensing
• DIY projects — gap filling and caulking
• Construction tasks — low‑viscosity sealant application

How to Use Skeleton Caulking Gun

• Insert the cartridge securely into the frame
• Cut the nozzle to the required bead size
• Press the trigger to dispense material
• Maintain steady pressure for uniform output
• Release pressure when finished to prevent flow

FAQs for Skeleton Caulking Gun

• What cartridge sizes does it support? — 290ml, 310ml and 400ml
• Is it lightweight? — yes, skeleton frame design
• What is the trigger ratio? — 7:1 for smooth dispensing
• Is it suitable for mastic? — ideal for mastic and low‑viscosity sealants
• Where is it used? — construction, workshop and DIY environments