Airless Spray Painting: A Friendly, Technical Guide
Airless spray painting is one of the fastest ways to cover big surfaces with a smooth, even finish—when you choose the right sprayer and use it correctly. Here’s the simple, practical guide to getting it right.
Want to browse the full Magnum airless range (sprayers, tips, hoses, protectants)? View the range here .
High-pressure spraying for fast coverage and a consistent finish on large areas.
Speed, uniform coats, and the ability to handle thicker coatings better than many spray options.
Prep + masking + cleanup. Airless is powerful—treat it like a proper system, not a toy.
What is “airless” spray painting?
An airless sprayer doesn’t use compressed air to atomise paint. Instead, the pump pushes paint at high pressure through a tiny opening (the spray tip). That pressure breaks the paint into fine droplets and forms a consistent fan pattern.
- Fast coverage: Great for walls, ceilings, boundary walls, decks, fences, and large panels.
- Consistent finish: Even coats with fewer roller marks.
- Efficient workflow: Big time savings on repetitive painting jobs.
When airless is perfect (and when it isn’t)
- New builds, renovations, repaints where you need speed + uniform coverage.
- Large interior areas (walls/ceilings) and exteriors (walls, fences, cladding).
- Projects where you’ll use a sprayer more than “once in a blue moon”.
- One tiny touch-up a year (brush + roller might be simpler).
- Busy areas where masking is hard and overspray is a big risk.
- Ultra-fine cabinet finishes where HVLP can sometimes be better (job dependent).
The specs that actually matter
- Annual usage (L/year): Match the machine to how much you realistically spray per year.
- Flow rate (L/min): Higher flow generally means faster coverage.
- Max tip size: Helps determine what coatings you can spray comfortably.
- Pressure (bar): Supports atomisation and consistent fan patterns.
Which Magnum sprayer should you choose?
Here’s a practical “fit-for-purpose” breakdown. Tip choice and technique still matter a lot, but this gets you in the right ballpark.
| Model | Best for | Annual usage | Flow rate | Pressure | Max tip | Notes |
|---|---|---|---|---|---|---|
| A20 Pro+ | Home maintenance + first-time airless users | 260 L/year | Up to 0.91 L/min | 207 bar | — | Compact, TrueAirless tech |
| A30 Pro+ | Multiple midsized interior/exterior projects | 300 L/year | 1.02 L/min | 207 bar | 0.015" | Great “sweet spot” for regular DIY |
| A45 Pro+ | Frequent larger projects + faster workflow | 450 L/year | 1.17 L/min | 207 bar | 0.017" | Built-in cart for mobility |
| A60 Pro+ | Large projects / heavy use users | 1500 L/year | Up to 1.44 L/min | 207 bar | 0.019" | ProXChange pump replacement feature |
| A80 Pro+ | Contractor-sized work / production spraying | 3000 L/year | Up to 1.8 L/min | 207 bar | 0.021" | Fast coverage, ProXChange feature |
Small jobs? The drill-powered TrueCoat 360 approach
If you’re not ready for a full-size sprayer (or you want something quick for smaller work), a compact drill-powered approach can be a neat solution for small projects.
- 1 litre reservoir (great for smaller jobs)
- Up to 138 bar pressure
- Max tip: 0.015"
- Best for water-based paints/stains (always confirm coating compatibility)
Accessories that make airless easier (and your finish better)
1) Spray tips: your finish starts here
Tips control fan width and material flow. A better tip match means less overspray, more control, and a nicer finish.
2) Hoses: reach matters
A longer hose saves a lot of moving and repositioning—especially on boundary walls and big interiors.
3) Pump protection: store it like you want it to last
Pump storage/protection products help protect the pump during downtime. If you spray occasionally, this matters even more.
Technique: small habits that make you look like a pro
- Prep + mask properly: overspray travels.
- Strain your paint: protects your tip and improves consistency.
- Test spray first: cardboard test saves walls.
- Keep distance consistent: steady overlap = smooth finish.
- Clean immediately after spraying: flushing prevents blockages and downtime.
Quick FAQ
Do I need an airless sprayer as a homeowner?
If you paint large areas more than occasionally, airless can save serious time. For small touch-ups, a roller may be easier.
Why does my finish look patchy?
Common causes: inconsistent distance, moving too fast, wrong tip, or poor overlap. Test-spray first and keep passes steady.
What’s the biggest mistake people make?
Skipping masking and delaying cleanup. Overspray management and proper flushing are key to good results and long pump life.