Geordie asks,
We’re considering some new equipment and looking for some information on flood coating versus rod coating.
If I were looking for new equipment I would probably lean toward rod coating. In my opinion rod coating is more effective and accurate than flood coating. Rod coating provides a very wide coating weight range. They also allow much greater precision in coating weight control and are typically much easier to operate. The rod coating process also provides superior cross machine coating uniformity as compared to flood coating.
Most modern rod coater designs make very easy and quick to change the coating thicknesses as well. So if minimizing changeover time is important to you that may be another advantage to rod coating.
— Ralph
askralph 