C821

Blue half-barrel skeleton caulking gun with a smooth steel thrust rod, quick-release trigger and full contoured grip, offering a durable, economical choice for standard 310 ml sealant cartridges.

Model

C821

Type

Half-barrel skeleton caulking gun

Cartridge Capacity

310 ml / 10 oz standard cartridge

Rod Type

Round steel thrust rod with spring

Body Material

Painted steel; zinc mechanism

Grip

Full contoured moulded handle

The C821 is a classic half-barrel skeleton caulking gun that combines durability with everyday practicality. The sturdy blue-painted steel barrel partially surrounds the cartridge to protect it on site, while the smooth round thrust rod slides cleanly through the sealant gun mechanism for reliable dispensing. With a full contoured grip, instant-flow release and a hanging hook, it is a dependable everyday tool for painters, installers and maintenance teams.

 

Key Features

  • Half-barrel steel design protects the cartridge while keeping weight low
  • Smooth round steel thrust rod with return spring for consistent feed
  • Instant flow-stop release mechanism for clean, drip-free beads
  • Full contoured grip for a secure, comfortable hold
  • Accepts all standard 310 ml (10 oz) sealant cartridges
  • Built-in hook for hanging on belts, ladders and tool racks

Material & Construction

Painted steel half-barrel with a polished round thrust rod, zinc trigger mechanism and one-piece moulded grip.

 

Ideal For

Ideal for painters, maintenance crews and DIY users who need a reliable, easy-handling gun for silicone, acrylic and latex sealants in daily tasks.

 

Technical Specifications

ParameterValue
ModelC821
TypeHalf-barrel skeleton caulking gun
Cartridge Capacity310 ml / 10 oz standard cartridge
Rod TypeRound steel thrust rod with spring
Body MaterialPainted steel; zinc mechanism
GripFull contoured moulded handle
ApplicationSilicone; acrylic; latex sealants
Model

C821

Type

Half-barrel skeleton caulking gun

Cartridge Capacity

310 ml / 10 oz standard cartridge

Rod Type

Round steel thrust rod with spring

Body Material

Painted steel; zinc mechanism

Grip

Full contoured moulded handle

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Company Overview

Zhejiang Volcano Machinery Co., Ltd., located in Jinhua city, Zhejiang Province, China. It has decades of experience in manufacturing all kinds of expanding PU foam guns, grouting and pointing guns, chemical anchoring adhesive guns and silicone guns. The company has established its unique product philosophy via extensive practice, its products are highly recognizable in market.
The company in Jinhua occupies land of 40,000 square meters and has a building of 32,000 square meters.

factory

Certificates

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FAQ

Are you a manufacturer or trading company?

We are a professional manufacturer with two production bases in China and Thailand. We specialize in PU foam guns, silicone guns, grouting guns and chemical anchoring adhesive guns, supporting OEM and ODM orders.

Yes. We can customize logo, packaging, appearance and internal structure according to your requirements. We have rich experience serving famous brands from Europe and America.

Normally the lead time is 30–45 days after receiving the deposit. The exact time depends on order quantity and customized requirements.