An airless sprayer is a valuable investment for professional painters and demanding DIY enthusiasts alike. Regular cleaning is essential to ensure consistent spraying, a long service life and to avoid costly breakdowns. But how often should you maintain and clean your airless sprayer?
1. Cleaning after each use: a golden rule
Each time you use your equipment, it is essential to clean it immediately after applying the paint.
- Why ?
- The paint dries quickly inside the pipes, pump, spray gun and nozzle.
- Even small residues can cause blockages and disrupt the flow.
- Thorough cleaning extends the service life of the machine and prevents costly repairs.
- How ?
- Empty the paint container or bucket.
- Circulate a suitable solvent (water for water-based paints, thinner for solvent-based products) until the liquid runs clear.
- Clean the nozzle, the gun filter and the main filter, as well as any necessary accessories.
2. Cleaning during long breaks on a construction site
If you take a break lasting several hours (long lunch, waiting between coats, etc.), it is advisable to secure the machine to prevent the paint from drying.
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Tip: leave the suction in a bucket of water (or solvent, depending on the product used), the spray gun with the nozzle turned 90 degrees and the direction valve closed on spray mode, leaving a few bars of pressure (if no one else is going to be playing around the machine).
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This prevents deposits from hardening and avoids tedious cleaning later on.
3. Weekly cleaning (regular maintenance)
In addition to cleaning after each use, a more thorough inspection is recommended each week for professionals who use the device daily.
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Check and rinse the filters.
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Examine the strainer and the condition of the hose.
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Ensure that the spray gun does not show any abnormal wear.
4. Cleaning when changing products
Whenever you change paints (for example, switching from acrylic to varnish or from primer to finish), thorough cleaning is essential.
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This prevents unwanted mixing between incompatible products.
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You maintain the spray quality and the final appearance of the coating.
5. Seasonal or monthly maintenance
For intensive use, it is advisable to schedule more thorough maintenance every few weeks or every month:
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Check the seals and pump.
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Lubricate moving parts if necessary (follow the manufacturer’s recommendations).
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Check the condition of the nozzles and replace them if worn.
6. What happens if you don’t clean regularly?
Neglecting cleaning can result in:
- Clogged nozzles and uneven spray pattern.
- Clogged filters reducing pressure.
- Hardened deposits in the pump, which can lead to machine failure.
- Excessive paint consumption and loss of application quality.
Ultimately, quick cleaning after each use takes just a few minutes, but saves you hours of repairs and high costs.
The ideal cleaning frequency depends on how often you use your equipment, but there is one simple rule: always clean your airless sprayer after each use and each product change.
Add to this regular maintenance (weekly or monthly) if you are a heavy user, and your machine will remain efficient and reliable for many years to come.
👉 At Airless Discounter, we offer the right maintenance products, maintenance kits and all the spare parts you need to keep your equipment in perfect condition.
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Questions or queries?
For any further questions or if you would like to get your hands on one of these products seen in this article, you can contact us on +49 (0) 30 220 15436, fill out our contact form or email us. If you wish to purchase one of the products mentioned above, you can check them out in our online store. You can also visit us at our service base during office hours.
