PU Foam Guns
JS8621-F Foam gun with ON/OFF valve (Plastic Handle)
The model with the coating choice: the same red plastic-handled gun is available either with a silver tube or with a Teflon coated tube, at 290 g, with an ON/OFF valve.
Product Overview
The model with the coating choice: the same red plastic-handled gun is available either with a silver tube or with a Teflon coated tube, at 290 g, with an ON/OFF valve. That makes it the flexible option for a distributor who wants both a coated and an uncoated gun without carrying two model numbers.
Key benefits
Why Buyers Choose This Model
Silver Or Teflon Coated Tube
One model, two barrel specifications. The coated version gives foam nothing to adhere to; the silver version costs less. Same gun otherwise.
ON/OFF Valve
A shut-off valve on the gun rather than relying on the canister, which lets the operator isolate the flow between beads.
290 g With A Plastic Handle
The metal tube and valve where the pressure and foam are, with a plastic handle where neither is. That is the cost split that keeps this in the mid tier.
Application scenarios
Where It Is Used
- Distributors wanting coated and uncoated from one model
- Trade insulation work at mid price
- Work needing shut-off between beads
- Foam brands offering two gun grades
Who it is for
The Buyers This Model Suits
Distributors Simplifying Range
Gets both a coated and an uncoated option under one model rather than stocking two.
Trade Insulation Crews
Wants the ON/OFF valve and a coated tube without the price of a chrome-plated body.
Foam Brands With Two Grades
Offers a standard and a premium gun with the same appearance, which simplifies packaging.
Problems it solves
What It Fixes
Choosing Coated Or Not Before You Know
Two specifications of one model lets you test both in the same market without committing to two SKUs.
Flow Between Beads
The ON/OFF valve isolates flow at the gun rather than requiring the canister to be removed.
Paying For A Metal Handle
The handle does not touch foam or pressure, so plastic there is the sensible saving.
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 | 290 g |
|---|---|
| Packing | 2PCS/inner box, 40pcs/ CTN |
| Color | red handle with silver tube, or red handle with Teflon coating tube , or customized |
| Carton Size | 38*34*52 |
| Colour options | red handle with silver tube, or red handle with Teflon coating tube , 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-F are produced in our own workshops in Jinli Town, Zhaoqing. This model is predominantly a moulded product, made on our five horizontal and three vertical injection moulding machines, which run up to 10,000 mould open-and-close cycles per day. 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 thread it fully onto the gun before opening the valve.
Step 2
Use the ON/OFF valve to isolate flow between beads rather than removing the canister.
Step 3
Fill to half depth and let the foam expand into the remainder of the gap.
Step 4
On the silver tube version, flush with cleaner before the canister comes off; on the Teflon version, tighten down and store.
Comparison
How It Compares In Our Range
The ON/OFF valve group, four models differing in handle and body finish.
| JS8621-G | All-black metal body with a plastic-dipped trigger, 290 g. |
|---|---|
| JS8621-H | Black metal body with a yellow plastic handle, 340 g. |
| JS8621-D | PTFE coated inside and out with a copper nozzle and nylon handle, 260 g. |
FAQ
JS8621-F Questions
What is the difference between the two tube options?
One has a silver tube and one has a Teflon coated tube, on the same red handle. Foam does not adhere to the coated tube, so it does not need routine solvent flushing; the silver tube version costs less.
What are the specifications?
290 g net weight, red handle, ON/OFF valve. Packed two per inner box and 40 per carton at 38 x 34 x 52 cm.
What does the ON/OFF valve do?
It isolates the foam flow at the gun, so the operator can stop flow between beads without removing the canister.
Can I order both tube versions in one shipment?
Yes, and it is a sensible way to test which your market prefers. Each version counts separately toward the model's minimum order quantity.
What is the minimum order quantity?
2,000 pieces for a customised version.
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-F
Send the quantity and your colour and packing requirements, and we will confirm the minimum and a production date.