
JS8612-B 1:1 Epoxy Grout Caulking Gun (Plastic Model)
The light 1:1 epoxy grout gun: 100 KG push force at a very high 50:1 drive ratio, 180 KG tolerance, 650 g.

Product Overview
The light 1:1 epoxy grout gun: 100 KG push force at a very high 50:1 drive ratio, 180 KG tolerance, 650 g. The high ratio is the point, delivering volume per squeeze through a mixing nozzle, which suits occasional grouting and DIY as well as professional touch-up work.
Why Buyers Choose This Model
50:1 Drive Ratio
The highest ratio in the catalogue. Volume per squeeze is what makes epoxy through a mixer bearable without high push force, and it is why this gun works at 100 KG.
650 g, The Lightest Grout Gun
Balances durability against lightweight design, which makes operation more convenient on work where the gun is held rather than rested.
180 KG Tolerance On 100 KG Force
An 80 percent margin, the largest proportional headroom in the grout range.
Economical And Practical
Focused on practicality rather than specification, for professional contractors and DIY users who do not grout every day.
Where It Is Used
- Occasional 1:1 epoxy grouting
- Touch-up and repair grout work
- DIY and light trade sales
- Distributor ranges needing an entry 1:1 gun
The Buyers This Model Suits
Occasional Grout Users
Grouts a few times a year and does not need a 420 KG welded steel gun to do it.
Repair And Maintenance Trades
Does small areas of grout as part of wider work, where weight and cost matter more than force.
Retail And DIY Channels
Needs a 1:1 epoxy gun at a price a non-professional will pay.
What It Fixes
Over-Specifying For Small Areas
A welded steel grout gun on a bathroom floor is cost without benefit.
Trigger Effort At Low Push Force
50:1 is how a 100 KG gun still pushes epoxy through a mixing nozzle.
Weight On Held Work
At 650 g this is the lightest gun in the two-component range by a clear margin.
How It Is Built
Durability and Lightweight Design
The gun’s body is made from sturdy materials, striking a balance between durability and lightweight design, making operations more convenient.
Simplicity and Practicality
JS8612-B focuses on practicality, providing you with an economical solution for your caulking needs.
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 | 650g |
|---|---|
| Packing | 2PCS/inner box, 20pcs/ CTN |
| Color | yellow, or customized |
| Carton Size | 59*41*41.5 |
| Push Force | 100KG |
| Maximum Tolerance | 180 KG |
| Drive Ratio | 5 0:1 |
| Application | JS8612-B is designed for the application of 1:1 ratio epoxy grout, suitable for various caulking tasks |
| Colour options | yellow, or customized |
| Packing | 2PCS/inner box, 20pcs/ CTN |
| Minimum order | 2000pcs for a customised version |
| Customisation | Colour, packing method, carton appearance and logo |
How This Model Is Made
Parts for the JS8612-B 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.
Getting The Best Out Of It
Step 1
Confirm the cartridge is 1:1 before loading.
Step 2
Fit the mixing nozzle and discard the first short length of mixed product.
Step 3
Use long, steady strokes; at 50:1 each squeeze delivers a lot of grout.
Step 4
Clean the plunger and nozzle seat before the epoxy cures.
How It Compares In Our Range
Compare on ratio against force within the 1:1 group.
| JS8612-A | 250 KG at 30:1 and 1000 g, the same plastic construction with far more force. |
|---|---|
| JS8615-2 | Welded steel at 200 KG and 45:1 with a labour-saving linkage, 800 g. |
| JS8615-3 | Welded steel at 420 KG and 43:1, for continuous heavy use. |
JS8612-B Questions
Why is the push force only 100 KG?
Because the drive ratio is 50:1, the highest in our catalogue. A high ratio delivers volume per squeeze rather than pressure, which is how the gun moves epoxy through a mixer at a low force figure.
What are the full ratings?
100 KG push force, 180 KG maximum tolerance, 50:1 drive ratio, 650 g net weight. Stock colour is yellow.
Is it strong enough for professional grouting?
For occasional and touch-up work, yes. For a crew grouting large floors daily, the JS8612-A at 250 KG or the welded steel JS8615-2 and JS8615-3 are the right tools.
How is it packed?
Two pieces per inner box, 20 pieces per master carton at 59 x 41 x 41.5 cm.
What is the minimum order quantity?
2,000 pieces for a customised version, per colour.
Trades That Use This Model
Tile And Stone Installation
Epoxy grout guns, pointing guns and slab lifters for tiling and stonework
Structural Anchoring And Rebar Fixing
1:4 injection anchor adhesive guns for post-installed rebar and anchor bolts
Construction Sealing And Waterproofing
Cartridge, sausage and powered guns for joint sealing and waterproofing trades
Guides That Cover This Model
Choosing A Two-Component Gun By Mix Ratio
The ratio is built into the gun's linkage, so a 1:1 gun cannot dispense a 1:4 product. Match the gun to the cartridge, every time.
Quote The JS8612-B
Send the quantity and your colour and packing requirements, and we will confirm the minimum and a production date.



