english 
Fuel Tank Painting in Extreme Temperatures
Special considerations for coating application in very hot or cold conditions
Extreme Cold Conditions (<5°C / 41°F)
Curing Challenges
- Chemical reactions slow or halt in low temperatures
- Paint may remain sticky and uncured
- Poor adhesion and moisture vulnerability
- Delayed resistance to fuel/chemical exposure
Condensation Risks
- Cold surfaces attract moisture from air
- Can cause blistering or rust under coating
- Particularly problematic for water-based paints
- May lead to delamination over time
Extreme Heat Conditions (>35°C / 95°F)
Application Issues
- Solvents evaporate too quickly ("skinning")
- Uneven texture and poor coverage
- Trapped solvents can cause bubbling/cracking
- Brush/roller marks more visible
Curing Stress
- Rapid curing creates internal stresses
- Coatings become brittle and prone to cracking
- Alkyd paints may fail to expand/contract
- Reduced long-term flexibility
Cold Weather Mitigation
- Use cold-weather formulations (modified epoxies/polyurethanes)
- Preheat tank surface 3-5°C above dew point
- Maintain temperature during application/curing
- Limit exposure to drafts/temperature drops
Hot Weather Mitigation
- Paint during cooler times (early morning/evening)
- Use heat-resistant formulations (silicone-based)
- Special thinners to extend open time
- Ensure surface is cool to touch before painting
Safety & Regulatory Considerations
Extreme temperatures introduce additional risks: increased solvent volatility (fire hazard) in heat or worker safety issues (frostbite) in cold. Many regions prohibit painting outside 10-30°C ranges. When unavoidable, consider spray application for faster coverage, thin multiple coats, and temporary enclosures with climate control.