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Cordless Caulking Gun

Battery-powered dispensing tools for controlled industrial sealing and bonding tasks

When working in mobile applications and aiming to reduce operator strain, a cordless gun is a practical option. As a professional manufacturer of dispensing equipment, Btektech offers a variety of dispensing guns suitable for single-component/foil-pack (sausage) adhesives and two-part adhesives.

Product Advantages & Technical Features

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Cordless caulking guns can be used for mobile applications like manual guns, while also achieving stable and repeatable dispensing results similar to pneumatic guns.

  • Consistent delivery: Cordless caulking guns provide a controlled and steady advancement speed, helping promote more consistent bead formation from the first inch of the tube to near the very last.
  • The “Pressure Relief” Auto-Retract: The system pulls the plunger back a few millimeters when the trigger is released. This mechanical “breath” relieves internal pressure, helping to reduce the risk of material run-on.
  • True Job-Site Portability: No compressors to haul, no tripping over air hoses, and no hunting for a outlet — making it a practical choice for supporting mobile operations.

Product Models & Technical Specifications

Below is a selection of our most popular Cordless Caulking Gun models. As a leading manufacturer, Btektech offers an extensive range of specifications and configurations beyond what is listed here. For a comprehensive overview of all our dispensing consumables, please contact us or download the product catalog.
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Item No. Spec. Color Material
BTK-MGSAS01 MGSA300ml white metal
BTK-MGSAS02 MGSA600ml white metal
BTK-EGS01 EGSA600ml yellow metal+Plastic
EGG400-11 EGG400-11 blue metal+Plastic
BTK-EG02 BTK-EG200ml(1:1) yellow metal+Plastic
BTK-EG03 BTK-EG400(3: 1) yellow metal+Plastic
BTK-EG04 BTK-EG585(3: 1) yellow metal+Plastic

Product Applications & Industries

Automated lines are fine for benchwork, but in the field, mobility usually dictates your success. A high-performance cordless gun is the "workhorse" for environments where you can't bring the work to the tool.

Building Envelope & Infrastructure

  • Expansion Joint Sealing: When facing hundreds of feet of horizontal runs, the cordless drive handles the heavy lifting, supporting a more steady, largely continuous bead that helps manage water ingress and seasonal structural “heave.”
  • HVAC & High-Velocity Ducting: In cramped crawl spaces or on 20-foot ladders, a cordless caulking gun lets technicians seal seams without the clutter, supporting the airtightness targets typically required in high-efficiency systems.
  • Structural Anchoring: For chemical anchoring in remote bridge decks or tunnels, our 21V motor provides sustained, high pushing force to help inject high-viscosity adhesives into deep boreholes—even in locations far from the nearest power grid.

Cordless Caulking Gun for structural Anchoring

Automotive & Industrial Assembly

  • Specialty Vehicle & Marine Seaming: When laying long runs of MS polymers on bus frames or boat hulls, the variable speed control makes it easier to maintain a uniform finish, helping reduce secondary tooling and cleanup.
  • Industrial Gasketing: By eliminating the “pulsing” of manual pumping, these guns support the consistent application often needed for IP-rated performance when used with suitable materials and validated processes.
  • Composite Bonding: Applying certain two-part bonders for wind turbine blades or fairings demands repeatable flow. The synchronized plunger movement helps maintain the flow characteristics typically required for demanding composite joints.

Cordless Caulking Gun for vehicle seaming

Maintenance & Prototyping

  • On-Site Refurbishment & “Punch List” Tasks: Lugging a compressor just to seal three joints on the 5th floor is a waste of labor. A cordless tool is the go-to for these scattered tasks, helping to streamline the handover while maintaining acceptable bead quality.
  • Emergency Repair: When a tank develops a drip, you need “grab-and-go” capability. Our guns are commonly kept on standby for rapid deployment of high-viscosity leak-stops or emergency “cold-weld” epoxies.
  • R&D Bench-Testing: Before committing to a six-figure robotic cell, engineers use our guns to “bench-test” sealant behavior. It’s a practical way to validate your process and fine-tune the bead geometry during the prototyping phase.

Cordless Caulking Gun for bathtub caulking

Need a Custom Solution? We’ve Got You Covered.

At Btektech, we engineer custom solutions for all products related to adhesives and fluid dispensing.

Our Customization Options Include:

  • Physical Attributes: Size, material, and color
  • Branding: Custom packaging and logo application
  • Functional Design: Modifications based on requirements

To get started, simply share your basic drawings, functional specifications, or intended usage scenarios. Our engineering team will assess feasibility and collaborate with you to develop a high-performance, reliable solution.

Partner with Btektech for Precision

From initial design to final delivery, we ensure your custom solution achieves unmatched consistency. If you have a customization need, contact us today to discuss your project.

Frequently Asked Questions (FAQ)

Can a cordless caulking gun be used for both single and two-component adhesives?

Cordless caulking guns can be used for either single- or two-component adhesives, depending on the specific gun configuration and model. Single-component applications typically use 600ml cartridges or sausage packs, while two-component dispensing requires dedicated dual-cartridge guns with static mixing nozzles. In practice, when we support these applications at Btektech, different cordless models are selected for 1K and 2K materials to ensure proper thrust balance and synchronized output. Using insufficient or mismatched drive systems often shows up as unstable flow or inconsistent mixing in 2K applications.

What types of sealants and adhesives are suitable for cordless caulking guns?

Cordless caulking guns are suitable for many common industrial sealants and adhesives, including silicones, PU, MS polymers, firestop materials, and general construction adhesives. Material viscosity and filler content directly affect dispensing performance, especially when static mixing nozzles are used. In real use, it’s a good idea to verify that the available pushing force and speed control can handle the material’s flow resistance without overloading the motor or battery.

Are cordless caulking guns appropriate for continuous industrial production use?

Cordless caulking guns are generally intended for intermittent, mobile, or task-based industrial applications rather than continuous high-volume production. Battery capacity, thermal constraints, and manual trigger operation limit sustained use over long cycles. Once duty cycles become long or highly repetitive, pneumatic or metered dispensing systems are usually a better fit for consistency and uptime.

How does a cordless caulking gun differ from pneumatic dispensing tools?

A cordless caulking gun offers air-free operation and greater mobility, making it suitable for fieldwork, elevated locations, or confined spaces. Pneumatic tools, by contrast, typically deliver higher sustained force and are better suited for continuous use. Selection should be based on mobility needs, material viscosity, and expected duty cycle, rather than assuming one tool type is always the “right answer” for every job.

Can cordless caulking guns support customization or long-term industrial supply?

Cordless caulking guns can support customization related to cartridge formats, thrust requirements, and accessory compatibility, depending on how the manufacturer has designed the platform and scaled production. At Btektech, this typically means working from standardized drive platforms that can be adapted for different packaging formats, while maintaining consistency across batches. For procurement and R&D teams, confirming stable production capacity, testing support with actual materials, and long-term supply planning is essential to minimize application risk and ensure consistent performance across projects.

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