1. Introduction
This manual provides essential information for the safe and effective use of your Walfront K3 Spray Gun. The K3 Spray Gun is a high-accuracy airbrush tool designed for various painting and repairing applications, featuring a 0.5mm caliber nozzle. It is primarily used for tasks such as exterior wall painting, shoe repair, furniture repair, art and art inkjet, model inkjet, leather repair, advertising, T-shirt decoration, beauty nails, disposable tattoos, DIY cakes, and DIY hand-painting.
2. Safety Information
WARNING: Pressurized liquids and chemicals can cause harm. Always wear appropriate personal protective equipment (PPE), including eye protection, gloves, and a respirator, when operating this spray gun. Avoid direct skin or eye contact with paint or cleaning solutions. Ensure adequate ventilation in your workspace. Keep out of reach of children.
3. Product Components
The Walfront K3 Spray Gun package includes the following components:
- K3 Airbrush (Spray Gun Body)
- Metal Spraying Pot (Gravity Feed Cup)
- Cleaning Brush
- Golden Screw (likely for air inlet connection)
- Silver Screw (likely for air inlet connection)
- Wrench (for assembly/disassembly)
- Users Manual (English)

4. Setup
Follow these steps to set up your K3 Spray Gun for operation:
- Attach the Metal Spraying Pot: Securely screw the metal spraying pot onto the top inlet of the spray gun body. Ensure it is tightened sufficiently to prevent leaks.
- Connect Air Supply: Attach your air compressor hose to the air inlet at the bottom of the spray gun handle. Use the appropriate golden or silver screw/adapter if necessary to ensure a tight seal.
- Prepare Material: Fill the metal spraying pot with your desired painting or repairing material. Ensure the material is properly thinned according to its manufacturer's instructions for spray application.
- Initial Adjustments: Before spraying on your final surface, perform initial adjustments on a test piece.

5. Operating Instructions
The K3 Spray Gun features three adjustment knobs for precise control over your spraying application:
- Spray Mode Adjustment Knob: Located at the front of the gun, this knob adjusts the spray area or pattern shape. Rotate to achieve the desired spray width.
- Hydraulic Control Knob: This knob controls the volume of the coating material being sprayed. Turn clockwise to decrease flow and counter-clockwise to increase flow.
- Air Pressure Adjustment Knob: This knob regulates the air pressure supplied to the gun, influencing atomization and spray quality. Adjust as needed for optimal performance with your chosen material.
The side-mounted gravity cup allows for 360° rotation, providing the operator with flexibility to choose optimal spray angles for high transfer efficiency and superior atomization.


6. Maintenance
Proper cleaning and maintenance are crucial for the longevity and optimal performance of your K3 Spray Gun.
- Immediate Cleaning: After each use, immediately empty any remaining material from the spraying pot.
- Flush with Solvent: Fill the pot with an appropriate cleaning solvent (e.g., paint thinner for oil-based paints, water for water-based paints) and spray it through the gun until clear.
- Disassemble and Clean: Disassemble the nozzle, air cap, and fluid needle components. Use the provided cleaning brush and solvent to thoroughly clean all parts, removing any dried paint or residue.
- Lubrication: Apply a small amount of spray gun lubricant to the fluid needle packing and air valve packing periodically to ensure smooth operation.
- Storage: Store the clean and dry spray gun in a safe place, protected from dust and damage.
7. Troubleshooting
If you encounter issues with your K3 Spray Gun, consider the following common problems and solutions:
- Poor Atomization: Check air pressure settings. Ensure material is properly thinned. Clean the air cap and nozzle for blockages.
- Uneven Spray Pattern: Verify the spray mode adjustment knob is set correctly. Clean the air cap and nozzle, ensuring all holes are clear.
- Leaking from Nozzle: Check if the fluid needle is properly seated and not damaged. Ensure the nozzle is tightened correctly.
- No Material Flow: Confirm the hydraulic control knob is open. Check for blockages in the fluid passage or nozzle. Ensure the spraying pot has material.
- Air Leaks: Inspect all connections (air hose, spraying pot) for tightness. Check O-rings and packings for wear or damage.
For persistent issues not resolved by these steps, contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Walfront |
| Model Name | 708223628406 |
| ASIN | B07TN5K476 |
| Nozzle Caliber | 0.5mm |
| Recommended Uses | Painting, Repairing (exterior walls, shoes, furniture), Art, Model Inkjet, Leather Repair, Advertising, T-shirts, Beauty Nails, Disposable Tattoos, DIY Cakes, DIY Hand-painting |
| Material | Metal |
| Style | Gun |
| Power Source | Hand Powered (requires external air compressor) |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches (Note: This dimension seems generic and may not represent the actual product size accurately) |
| Item Weight | 9.6 ounces |
| Manufacturer | Wal front |
| Included Components | K3 Airbrush, Metal Spraying Pot, Brush, Golden Screw, Silver Screw, Wrench, Users Manual(English) |
