Dry Filter vs. Water Wash Spray Booths
Dry filter spray paint booths use layered filters to separate paint particulates from a constant airstream passing through an exhaust filter. There are many types of designs available for dry filter media, dry exhaust filters and even reclaim systems, each of which is ideal for certain volumes and applications.
While dry filtration is a popular choice in most industrial manufacturing sectors, since it can easily accommodate fluctuating demand and changing part sizes, it does require ongoing maintenance. Dry filters get clogged with use and must be routinely replaced to avoid uneven airflow. Despite this, dry filters are ideal for most low-to-medium volume production operations.
Water wash spray paint booths use water as a filtration medium instead of dry filters. Paint overspray is collected and trapped in the water curtain or scrubber section of the washer and then is dropped down into a collection tank. Water wash filtration systems require a higher initial investment than dry filtration, but are ideal for operations that need uniform and consistent airflow.
Due to their durable and efficient design, water filtration systems are perfect for manufacturing processes with an extremely high rate of production, as they can handle significantly more overspray volume compared to dry filters. Additionally, water wash is preferred by many occupational health and building safety codes and is appropriate for spray and finishing compounds of various viscosity and drying speeds.