Why is it more difficult to use metering rods when coating onto films such as polyester or polyethylene?
Films are generally less porous than paper, leaving most or all of the coating on the surface making films more susceptible to streaks and rod lines. To achieve a smooth and uniform coating on films, we recommend using a wire-wound rod or a grooved rod with a custom thread profile. Our engineers are ready to work with you to develop the appropriate profile for your application.
