Hold Time Calculator
Calculate minimum cure hold times for powder coatings
How Hold Time Calculation Works
⚗️ Chemistry Factors
Different powder chemistries have different cure kinetics. Polyester-TGIC cures faster than pure epoxy systems.
🌡️ Temperature Impact
Higher temperatures accelerate cure reactions. Each 10°C increase roughly halves cure time.
📏 Thickness Effect
Thicker films take longer to cure completely due to heat transfer limitations and mass transport.
Standard Hold Time Requirements
Hold Time Best Practices
✅ Best Practices
- Measure metal temperature, not air temperature
- Account for part thickness and thermal mass
- Allow extra time for complex geometries
- Consider oven loading and airflow patterns
- Document actual vs. calculated times
- Perform cure validation testing
❌ Common Mistakes
- Using air temperature instead of part temperature
- Insufficient hold time for thick films
- Ignoring substrate thermal properties
- Not accounting for oven recovery time
- Rushing cure cycles to save energy
- Skipping cure validation tests