Long Dry Times?
Drying paint is an area shops have some of the least control over due to the natural evaporation of solvents or water. This affects shops ability to reduce cycle times from waiting on paint to dry, causing your painters to sit and wait on drying paint. The issue of slow dry times can come from multiple sources.
Slow Dry Times
Slow dry times mean that your booth is backed up and production is slowed. What does this mean? It means fewer cars per day are being ut through your shop. What effects your dry times? [READ MORE ON THIS TOPIC]
- The system not providing ideal air movement to accelerate drying on all surfaces
- Missed areas because of dead spots in air movement
- Not using air movement system due to contamination
- High-velocity air across surfaces can trap vapor in grooved surfaces; such as bumpers, door handles
- Movement of trees or handhelds to needed areas
- Directional adjustment of nozzles not occurring
- Improperly cleaned spray guns resulting in heavy film builds requiring longer dry cycles
No Ideal Air Movement:
Some air movement systems simply do not provide proper air movement. Leaving dead spots in the paint booth, causing contamination, or simply requiring too much handling from the painter.
These dead spots occur by placing wet paint in an area where airflow is non-existent as a result, thus prolonging dry times. Dead spots can occur in the natural setup of air movement systems or when painters are required to manually adjust air movement systems for each job. Due to the time required adjusting mounted air movers for every job often do not occur, which results in areas where airflow is less than satisfactory. [READ MORE ON THIS TOPIC]
You may experience contamination as a result of multiple factors, we have found the common cause of contamination is high-velocity air stirring contamination in the paint booth. Contamination results in re-work and re-dos, and nib and buffing taking more time and money away from a shop’s highest production capacity. [READ MORE ON THIS TOPIC]
High-Velocity air movement can create multiple issues, a major issue being contamination and the other being a boundary layer on the surfaces of vehicles in the drying process. As previously stated contamination occurs when high-velocity air movement stirs debris in the paint booth. The boundary layer prevents wet surfaces from receiving proper airflow, slowing down the drying process. [READ MORE ON THIS TOPIC]
To read more on this issue refer to article: What Air Movement Provides the Best Drying Environment – Dynamic Air