PU Foam Guns
JS8621-D Teflon Coated Foam Gun
The answer to the only failure mode that matters on a foam gun.
Product Overview
The answer to the only failure mode that matters on a foam gun. The barrel is PTFE coated inside and outside, so foam does not adhere to it and routine cleaning solvent is not needed after each use. Stainless steel barrel, copper nozzle, nylon handle, aluminium alloy lock and end cap, 260 g.
Key benefits
Why Buyers Choose This Model
PTFE Coated Inside And Out
Foam does not adhere to the gun barrel, which eliminates the need for routine cleaning after each use. For a crew whose cleaning discipline is unreliable, this single feature decides how many guns you buy next year.
Tightening End Cap For Curing Control
After use, tightening the aluminium alloy end cap reduces air flow into the barrel, which extends the time before residue inside cures.
Copper Nozzle On A Stainless Barrel
The copper nozzle keeps flow smooth and prevents clogs; the stainless barrel resists corrosion. The coating sits on top of both.
Nylon Handle
Durable nylon for a comfortable grip suitable for prolonged use, and an ergonomic wrench design to reduce fatigue over long sessions.
Application scenarios
Where It Is Used
- Insulation crews who do not flush guns
- Work where guns are shared between operators
- Sites with no access to gun cleaner
- Distributor ranges selling on total cost rather than unit price
Who it is for
The Buyers This Model Suits
Insulation Contractors
Loses guns to cured foam faster than to any other cause, and this is the specification that changes that.
Shared-Tool Crews
Tools used by whoever needs them do not get cleaned by anyone.
Distributors Selling On Total Cost
A coated gun against three uncoated guns a year is a calculation a buyer can check themselves.
Problems it solves
What It Fixes
Foam Curing In The Barrel
The PTFE coating means residue does not bond to the barrel wall, which is the entire reason foam guns get thrown away.
No Cleaner On Site
Routine solvent flushing is not required, which removes a consumable and a step.
Air Reaching The Residue
The tightening aluminium end cap cuts airflow and slows curing further.
Nozzle Blockage
The copper nozzle is specified for smooth, precise flow and clog resistance.
Technical features
How It Is Built
Non-Cleaning PTFE Coating
The foam gun features a special PTFE coating both inside and outside, ensuring that foam does not adhere to the gun barrel. This eliminates the need for cleaning after use.
Tightened End Cap
After use, simply tighten the end cap to reduce air flow. This feature enhances the foam curing process inside the gun barrel, extending curing time and promoting optimal results.
Nylon Handle
The gun’s handle is made of durable nylon material, providing a comfortable grip suitable for prolonged use.
Alloy Locking Clip
The aluminum alloy locking clip securely attaches foam canisters, adding convenience and safety.
Alloy End Cap
The aluminum alloy end cap can be tightened to reduce air flow, further enhancing the foam curing process.
Ergonomic Wrench Design
The ergonomic wrench design offers comfortable operation and reduces fatigue during extended use. Copper The JS8621-D Non-Cleaning PTFE Coated Foam Gun is designed to provide a practical and efficient solution for customers who engage in daily construction tasks. Its non-cleaning PTFE coating, tightened end cap, and ergonomic design make it an excellent choice for professionals seeking both convenience and reliable performance.
Specifications
Published Figures For This Model
Every value below comes from our own product specification. Where a figure is not published we leave it out rather than estimating it.
| Net Weight | 260g |
|---|---|
| Packing | 2PCS/inner box, 40pcs/ CTN |
| Color | red, or customized |
| Carton Size | 38*34*52 |
| Barrel | The stainless steel gun barrel ensures durability and corrosion resistance, ensuring consistent performance over time |
| Nozzle | The copper nozzle ensures smooth and precise adhesive flow, preventing clogs and ensuring accurate application |
| Colour options | red, or customized |
| Packing | 2PCS/inner box, 40pcs/ CTN |
| Minimum order | 2 000pcs for a customised version |
| Customisation | Colour, packing method, carton appearance and logo |
Materials and manufacturing
How This Model Is Made
Parts for the JS8621-D are produced in our own workshops in Jinli Town, Zhaoqing. This model uses both routes: its moulded components come off our five horizontal and three vertical injection moulding machines, and its metal parts come off our fifteen automatic punching machines, nine automatic lathes and three welding machines. Tooling is designed and cut in our own mould room, which is why a change to this model does not queue behind another factory's schedule.
Quality Control
- Every model is weighed against its declared net weight during production, so the carton weight on your packing list matches what arrives.
- Stamped parts are produced in house on 15 automatic punching machines and 9 automatic lathes, so dimensional consistency is controlled at source rather than inspected on arrival.
- Moulded parts come off 5 horizontal and 3 vertical injection moulding machines running up to 10,000 mould open-and-close cycles per day, with tooling maintained in our own mould room.
- The quality management system was certified to ISO 9001:2015 in August 2023, with a certificate valid to 31 July 2026.
- Cartons are counted against the packing list as they are loaded into the container at our own factory door.
Certifications
The quality management system was certified to ISO 9001:2015 in August 2023, under standard GB/T19001-2016, for the manufacture and sale of glass caulking guns and sealant guns. The certificate on file runs to 31 July 2026; ask us for the current renewal status before relying on it. A TUV Rheinland assessment was obtained in 2016.
Customisation Options
- Aluminium Tube Anodizing And Colouring: More than 10 colours available; the surface can be given a frosted texture.
- Aluminium Tube Painting: Up to 10 colours with customisable patterns.
- Aluminium Tube Laser Engraving: Engraved logos, text and patterns on stamped fittings and aluminium tubes.
- Self-Adhesive Logo Labels: Applied to the product in the position the buyer specifies.
- Multi-Colour Logo Printing: Paint screen printing in any colour, with several colours printed at once.
- Tag And Product Screen Printing: Screen printed tags and product markings, multi-colour capable.
Use guide
Getting The Best Out Of It
Step 1
Shake the canister and fit it with the aluminium alloy locking clip fully engaged.
Step 2
Set output at the adjuster rather than feathering the trigger, so less foam sits in the nozzle.
Step 3
Tighten the aluminium alloy end cap whenever the gun is set down for more than a few minutes.
Step 4
Skip the routine solvent flush that an uncoated gun needs, but still leave the canister attached between jobs on the same day.
Comparison
How It Compares In Our Range
The only fully coated model, plus one coated option elsewhere in the range.
| JS8621-F | Available with either a silver tube or a Teflon coated tube on a red plastic handle, 290 g. |
|---|---|
| JS8621-B | Uncoated stainless barrel with copper nozzle and all-aluminium handle, 275 g, cheaper. |
| JS8621-E | Sandblasted chrome-plated body at 210 g with adjustable output, uncoated. |
FAQ
JS8621-D Questions
Does the coating really remove the need to clean the gun?
It removes the need for routine cleaning solvent after each use, because foam does not adhere to the coated barrel inside or outside. Tightening the end cap when you set the gun down is still the right habit.
What are the materials?
Stainless steel barrel with PTFE coating inside and out, copper nozzle, nylon handle, aluminium alloy locking clip and aluminium alloy end cap. Net weight 260 g.
Can the coating be applied to other models?
JS8621-F is offered with a Teflon coated tube option. Coating is applied in production and cannot be retrofitted, so order the coated model if you want it.
How is it packed?
Two pieces per inner box, 40 pieces per master carton at 38 x 34 x 52 cm. Stock colour is red.
What is the minimum order quantity?
2,000 pieces for a customised version, per colour.
Related products
Other Models In PU Foam Guns
Industries
Trades That Use This Model
Insulation And PU Foam Application
Canister foam guns built around the one thing that kills them, cured foam in the barrel
Window And Door Manufacturing
Glazing, perimeter foaming and gap filling for window and door plants and installers
Construction Sealing And Waterproofing
Cartridge, sausage and powered guns for joint sealing and waterproofing trades
Further reading
Guides That Cover This Model
Why PU Foam Guns Fail And What To Specify Instead
Foam guns are almost never worn out. They are written off because foam cured inside the barrel. Two specification choices change that.
Quote The JS8621-D
Send the quantity and your colour and packing requirements, and we will confirm the minimum and a production date.