Colad Undercoating Spray Gun 2–8 bar: Professional Results for Every Application
The Colad Undercoating Spray Gun (Art. No. 90672674) is an essential tool for workshops applying underbody coatings, cavity waxes, or sealing materials efficiently, cleanly, and evenly. With its adjustable pressure range from 2 to 8 bar and variable nozzle up to 5 mm, it allows precise control of the material flow and surface texture — from a fine film to an “orange peel” finish.
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Product Overview
| Feature | Value / Description |
|---|---|
| Operating Pressure | 2 – 8 bar (29–116 psi) |
| Nozzle Size | 0 – 5 mm (adjustable) |
| Air Consumption | 136 – 428 L/min (4.8 – 15.1 cfm) |
| Material | Nickel-plated Aluminum & Brass |
| Weight | 0.42 kg |
Pressure Regulation
Precisely adjustable air pressure from 2–8 bar
Adjustable Nozzle
Variable nozzle up to 5 mm for different textures
1-Liter Compatibility
Directly fits standard 1 L containers
Recommended Base Settings (Guidelines)
- Pressure: 4–6 bar (standard undercoating)
- Nozzle: 3–4 mm for textured finish
- Air consumption: approx. 250–300 L/min
- Distance to surface: 20–30 cm
- Temperature range: -10°C to +90°C
Professional Workflow
- Thoroughly clean and degrease the surface to be coated.
- Screw the 1-liter can firmly onto the gun.
- Connect the air supply hose (start around 4–6 bar).
- Pull the trigger until material flows evenly.
- Fine-tune the spray pattern with the front nozzle adjustment.
- For cavity coating: unscrew the front cap and attach the spray hose.
- Clean the gun immediately after use to prevent buildup.
Troubleshooting
1. Uneven spray pattern:
→ Clean the nozzle, increase air pressure, check material viscosity.
2. No material output:
→ Nozzle or suction tube clogged, check container connection.
3. Rough texture or splattering:
→ Pressure too high or nozzle opened too far.
4. Excessive misting:
→ Reduce air pressure and increase spray distance slightly.
Maintenance
- Flush with cleaner after every use
- Inspect nozzle regularly for residue
- Lightly oil seals and threads
- Check hoses and fittings for leaks
- Store dry and dust-free
FAQ
- Can I connect other cans?
Yes, the EU-standard thread (Ø40 mm) fits most 1 L containers. - Which materials can be sprayed?
Undercoating, cavity wax, stone chip protection, and bitumen-based products. - How do I adjust the “orange peel” effect?
Use the front nozzle control — smaller opening = finer texture, larger = coarser. - Can I work at lower pressure?
Yes, from 2 bar upward — ideal for thinner materials or mist coats. - Is the gun corrosion-resistant?
Yes, due to nickel-plated aluminum and brass construction.
Conclusion: The Colad Undercoating Spray Gun delivers precision, durability, and versatility — the ideal solution for workshops seeking professional, long-lasting results in everyday use.
