JS8621-H Foam Gun with ON/OFF valve (Yellow and black plastic handle)
PU Foam Guns

JS8621-H Foam Gun with ON/OFF valve (Yellow and black plastic handle)

A black metal-bodied foam gun with a yellow plastic handle and an ON/OFF valve, at 340 g.

JS8621-H Foam Gun with ON/OFF valve (Yellow and black plastic handle) product photo

Product Overview

A black metal-bodied foam gun with a yellow plastic handle and an ON/OFF valve, at 340 g. The two-colour treatment is the point: a yellow handle on a black body is visible in a van and on a site, and it makes a distributor's range recognisable at a glance.

Key benefits

Why Buyers Choose This Model

Two-Colour Treatment

A black metal body with a yellow plastic handle, which is a finishing specification rather than a tooling change. Visible on a site and distinctive in a branded range.

Metal Body With A Plastic Handle

Metal where the foam and pressure are, plastic where neither is. That is the cost split that puts this in the mid tier.

ON/OFF Valve

Shut off flow at the gun between beads, rather than breaking the canister seal each time.

340 g, 40 Per Carton

Packed two per inner box and 40 per master carton at 38 x 34 x 52 cm, the standard foam gun carton.

Application scenarios

Where It Is Used

  • Trade insulation and gap filling
  • Sites where tools get mislaid
  • Distributor ranges needing a visually distinct model
  • Own-brand foam ranges using colour as the identifier
Who it is for

The Buyers This Model Suits

Own-Brand Programmes

Uses handle colour as the brand cue across a foam range, which is cheap to change and immediately recognisable.

Site Crews

Loses black tools on black surfaces, and a yellow handle solves it.

Trade Distributors

Wants a metal-bodied gun at mid price with an ON/OFF valve.

Problems it solves

What It Fixes

Tools Lost On Site

A yellow handle is the cheapest possible answer to that, and it costs nothing in tooling.

A Range That All Looks The Same

Handle colour differentiates models on a shelf where the bodies are identical.

Breaking The Canister Seal To Stop Flow

The ON/OFF valve handles it at the gun.

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.

JS8621-H Foam Gun with ON/OFF valve (Yellow and black plastic handle) specification
Net Weight340 /g
Packing2PC/ inner box, 40pcs/ CTN
Colorblack metal body with yellow plastic handle, or customized
Carton Size38*34*52
Colour optionsblack metal body with yellow plastic handle, or customized
Packing2PC/ inner box, 40pcs/ CTN
Minimum order2000pcs for a customised version
CustomisationColour, packing method, carton appearance and logo
Materials and manufacturing

How This Model Is Made

Parts for the JS8621-H 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 home fully before opening the valve.

Step 2

Close the ON/OFF valve between beads instead of removing the canister.

Step 3

Fill to roughly half depth and let the foam expand into the remainder.

Step 4

Flush with cleaner before the canister comes off, since the barrel is uncoated.

Comparison

How It Compares In Our Range

The ON/OFF valve group, differentiated by handle treatment.

Alternatives to the JS8621-H
JS8621-GAll-black metal with a plastic-dipped trigger at 290 g.
JS8621-IAll-black metal at 350 g, the heaviest in the group.
JS8621-FRed plastic handle, with a silver or Teflon coated tube option, 290 g.
FAQ

JS8621-H Questions

What are the specifications?

340 g net weight, black metal body with a yellow plastic handle, ON/OFF valve. Packed two per inner box and 40 per carton at 38 x 34 x 52 cm.

Can the handle be a different colour?

Yes. The two-colour treatment is a paint-line and moulded-part choice rather than a tooling change, so other combinations are available at the 2,000 piece minimum.

Is the barrel coated?

No. The coated options are JS8621-D and the Teflon coated tube version of JS8621-F.

How does it compare with the all-black models?

Mechanically it is the same class. JS8621-G is 290 g with a plastic-dipped trigger and JS8621-I is 350 g all black. This model's difference is the yellow handle.

What is the minimum order quantity?

2,000 pieces for a customised version, per colour combination.

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-H

Send the quantity and your colour and packing requirements, and we will confirm the minimum and a production date.