Colad M80 Undercoating – Overpaintable, Durable & Efficient Application
This professional guide shows how to correctly apply Colad Undercoating M80 – including reference settings for air pressure, spray distance, and drying times, plus a step-by-step workflow, troubleshooting, and maintenance recommendations.
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Product Overview
M80 is a solvent-based, rubber and resin undercoating that provides stone chip and corrosion protection as well as sound insulation. After drying, it can be painted over and adheres excellently to many substrates.
| Variant | Packaging | Applications | Advantages |
|---|---|---|---|
| M80 Black (4010) / Grey (4030) | 1 L can with spray connection | Sills, bumpers, wheel arches, chassis – cars, trucks, buses | Weather & chip protection, noise reduction, overpaintable |
Reference values: Approx. 0.7 L/m²; one 1 L can covers up to 2.5 m² depending on thickness.
Order Colad M80 Undercoating now:
Shop NowRecommended Basic Settings (Reference Values)
- Air pressure: 3–6 bar with the undercoating gun (compatible with Colad adjustable 2–8 bar gun)
- Spray distance: approx. 30 cm
- Layer build-up: 1–2 coats, 700 µm wet film as reference
- Overpaintable: after approx. 60–90 min (depending on conditions); use primer for 2K coatings
- Consumption: approx. 0.7 L/m²
- Temperature resistance (cured): −25 to +80 °C
Note: Always test adhesion on the specific substrate before full application.
Professional Workflow (7 Steps)
- Preparation: Clean, dry, and degrease the surface completely. Mask adjacent areas.
- Shake the product: Shake for 1–2 minutes before attaching the can to the gun.
- Set up: Adjust pressure between 3–6 bar; test spray pattern on a sample panel.
- Application: Spray at approx. 30 cm distance in a cross pattern; aim for even texture.
- Drying: Allow to dry 60–90 min before overpainting; for 2K coatings, use primer and dry fully.
- Cleaning: Clean equipment and overspray immediately with solvents.
- Quality check: Verify structure and adhesion before painting; results are proven to withstand salt spray and gravel tests.
Troubleshooting
- Reduce pressure slightly and lower material output.
- Keep 30 cm distance and build up in two coats.
- Re-clean and degrease the surface thoroughly.
- Perform adhesion test; use primer for 2K coatings if needed.
- Check layer thickness (700 µm reference).
- Use forced drying at 60 °C for approx. 45 minutes.
- Allow full flash-off (60–90 min) before overcoating.
- Apply a thin, fully dried primer coat for 2K systems.
Maintenance & Care
- Clean gun and tools immediately with solvent after use.
- Store between 10–20 °C in a dry area; shelf life approx. 2 years.
- Check nozzle and spray pattern regularly.
- Test function before each use.
- Always wear PPE and follow OEM workshop safety guidelines.
FAQ – Common Questions
Yes, after approx. 60–90 minutes depending on temperature and layer thickness; use primer for 2K systems.
3–6 bar with an undercoating gun; compatible with Colad adjustable 2–8 bar model.
Touch dry after approx. 45 minutes, fully cured after 2 hours at 20 °C / 65% RH.
Water, salt spray, oil, soft bases, and acids when cured.
Approx. 2.5 m² depending on layer thickness and structure.
Conclusion
Colad M80 combines reliable stone chip and corrosion protection with an overpaintable surface and high resistance. With the right spray settings, distance, and layer build-up, workshops achieve clean, durable, and efficient results every time.
