FAQ

Thanks to more than fifty years of industry experience, the materials used to make FAVAGROSSA brushes are extremely reliable and versatile. It is nonetheless important to remember that good maintenance, combined with the use of quality chemical products, is essential in order to guarantee best washing results with unbeatable long-lasting effects. This responsibility rests with the machine manager, who must always be able to determine whether the brushes are dirty, old or worn, ensuring their reliability over time.

Either way, brushes will naturally deteriorate over time due to the atmospheric agents and chemical products to which they are exposed. Therefore, regardless of the number of wash cycles performed, it is recommended to replace brushes at least once every two years.

Each system uses specific brushes approved and tested by the manufacturer of the car wash system, ensuring excellent results and best performance. The brushes are studied and positioned according to the different technical-functional characteristics (diameter, shape, density, material, etc.) of the machine itself. It is thus preferable not to tamper with the original structure of the machine and to appoint specialised personnel to make any eventual changes. Thanks to many years of experience in this sector, FAVAGROSSA offers a broad range of brushes for all types of systems.

• Environment: Installing the machine in an outdoor environment will expose the brushes to atmospheric agents. Certain areas are more exposed than others to the sun, which is a well-known enemy of plastics and may trigger the highly damaging molecular deterioration of the bristles. It is not unusual to find clumps of dried-up bristles, almost resembling chalk, in systems that have been exposed to the sun for long periods of time. This phenomenon is commonly called “premature wear” and can be attributed to prolonged inactivity and exposure to ultraviolet rays. Unfortunately, despite the addition of special anti-UV additives during the production of the bristles, the only way to protect against this phenomenon is to keep the brushes sheltered from the sun during long periods of inactivity.

• Mechanics: The system must be constantly monitored to ensure the correct calibration of the brushes when they come into contact with the vehicle. Various do-it-yourself solutions may cause intense friction during the washing phase, which has not been accounted for during the construction of the system. Therefore, damage to the vehicles or to the brushes may also be the result of poor system maintenance by non-specialised personnel and with non-original parts.

• Chemicals: In the car washing industry, products such as shampoos, emulsions and wax are of excellent assistance, if used properly. The products must be high-quality and recommended doses must be strictly respected. The use of cheap chemicals, which may be very aggressive, may lead to poor results or even damage the body and gaskets of vehicles.
In any case, it is best to ensure that chemical residue is not left on the bristles for long periods of time. For this reason, it is recommended to rinse the brushes at the end of the day.

Very dirty brushes are normally an indication of inefficient detergents used daily on-board the system, of water with a high lime content, and/or of malfunctioning water recirculation systems.

If quality chemical products are used during washing, the brushes will tend to self-clean thanks to the strong centrifugal force generated by the automatic car wash.
Brushes must only be cleaned using chemical detergents on an occasional basis, using only high-quality products and strictly respecting recommended doses and methods of use. Continuous use of poor or expired products may irreparably damage the brushes, modify their characteristics and make them practically unusable.

It is not always possible to know exactly when the brushes need to be changed. Either way, given how often this question is posed, we recommend that all users regularly check the condition of the bristle tips (the last 10 cm). Contrary to common belief, in addition to the shortening of bristles, another sign of wear may be the thinning of bristles. A loss in thickness may lead to inefficiency during washing, as well as operating problems. It is therefore recommended to immediately replace the bristles.

However, brushes also wear and will naturally deteriorate over time due to the atmospheric agents and chemical products to which they are exposed. Therefore, regardless of the number of wash cycles performed, it is recommended to replace brushes at least once every two years.

The bottom part of vehicles is often where the most stubborn dirt accumulates. Even without a tunnel car wash equipped with side brushes, efficient washing is possible by carefully selecting the diameter and density of brushes, or by using hybrid brushes in the lower part of the vertical shafts. If these recommendations are combined with the correct shaping of the large brushes, cleaning the sides will no longer be a problem.

DRYTEX has been specifically designed to resolve the problem of drops during post-drying. It is the ideal solution to guarantee perfectly dry and clean vehicles, all the time. This material, which can be applied during the final stage of tunnel systems, guarantees not only impeccable drying but also perfectly polished vehicle bodies thanks to the soft surface that “drags the wax” like no other brush on the market.

The material that offers the best cleaning results and which is most delicate on vehicle bodies, is currently F-A.C.E. This new brush, the pride and joy of FAVAGROSSA production, combines the extraordinary performance of Carlite with the incredible softness of microfibers. The result: a powerful, yet at the same time delicate brush, able to remove even the most stubborn dirt. The soft surface “drags the wax” like no other washing brush on the market, guaranteeing perfectly polished and shiny vehicles, all the time.

For industrial systems, we recommend TRADITIONAL PE BRUSHES, which are very powerful cleaners and are able to reach the most difficult spots. For Trucks and Trains we recommend traditional polyethylene, polypropylene or nylon brushes, while for Bus systems (and in general vehicles that may have adhesives and advertising materials attached), we recommend the use of FILOK brushes, which are gentler and quieter.