Paint capture filtration

What is paint arrest filtration?

In situations with paint mist, a good filter system is very important. For example, in paint booths, it is very important that the incoming air which is sucked into the booth is clean and filtered. In addition, the paint mist filters are intended to extract paint mist in the booth that is released during activities such as spraying or coating. The paint arrest filters are essential for a good spraying or coating result. In addition to a good spraying result, the filters also ensure a healthy working environment for the employees.

Complete range of paint overspray filtration

Interfilter Group has a large assortment of spray booth filters, paint arrestor filters, also known as paintstop filters, and various filter cloths in stock with the best quality filter medium. Different filters are used for capturing paint (overspray) depending on your situation. You can come to us for, among other things:

Filter Cloth; Prefilter cloth provides the initial coarse filtration (G3) of the outside air and ceiling filters are made of fine filter cloth (M5) for air filtration in spray booths. Ceiling filters remove dust and dirt particles that have passed through the prefiler cloth.
Paint arrestor filters; Painstop filters (painstop green, hydro or dust) are developed for capturing different types of paints on water base, solvent base or for dry materials. In addition, Interfilter Group also supplies cardboard filters which ensure powerful extraction and absorption of paint, think of a replacement filter for Columbus or Andrea.
Bag filters; Synthetic bag filters are often used for paint overspray filtration to get clean supply air from outside into the room.

Need advice on paint arrestor filters?

Do you want advice on your application and the possibilities for optimization? Feel free to contact us via the contact form, calling, texting, or emailing.

Frequently asked questions

Each of these filters has a different function in the airflow of a spray booth. Pre-filter media or pre-filters, such as the IFS35 bag filters, first remove coarser contaminants from the outside air drawn in. A ceiling filter then provides finer filtration before the air enters the spray booth. Paint stop is located on the exhaust side and captures the paint mist created during spraying. Together, these filter stages filter both the supply air and the exhaust air.

The right choice depends on the type of paint or lacquer used in the spray booth. For water-based paint, special versions such as Hydro stop are available. Other types of paint arrestor filters are available for other paints and applications. The product used affects how the paint mist behaves in the filter. Interfilter can recommend a suitable filter medium based on your application.

During use, the filter captures more and more paint particles and its resistance increases. The pressure differential across the filter can therefore be used to monitor its load. Each filter type has a recommended final resistance. Once this value is reached, the filter needs to be replaced. Always check the technical specifications of the paint arrestor filter in use.

Different types of paint have different properties. Water-based paint, for example, can behave differently in a filter medium than solvent-based paint. The amount of overspray and the properties of the paint particles also play a role. That is why different filter media are available for different types of coatings. The right match prevents a filter from becoming saturated unnecessarily quickly.

The pressure differential is the difference in air pressure before and after the filter. As the filter captures paint mist, its resistance increases and the pressure differential rises. By measuring this value regularly, you can track how heavily the filter is loaded. Compare the measured value with the specified final resistance of the filter to determine the right time for replacement.

A contaminated filter increases resistance in the airflow. As a result, the fan has to work harder or the airflow rate in the booth may drop. This can affect air distribution and the performance of the spray booth. Regularly checking the pressure differential helps you replace filters on time and keep the airflow at the right level.

Spray booths usually use multiple filter stages because the supply air and exhaust air contain different types of contamination. Outside air can first pass through a coarse pre-filter and then through a fine ceiling filter. On the exhaust side, a paint arrestor filter captures the overspray. The combination you need depends on the booth, the paint system used and the desired air quality.