Graco RAC X Heavy Duty Airless Spray Tip (HDA)
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Product Features
✔ Built for high-build coatings: Graco RAC X HDA airless spray tips are designed for thicker, less fluid and more abrasive coatings, including airless plaster and high-build materials that need higher pressure to atomise properly.
✔ Easy to use on demanding jobs: Large raised tip numbers, a secure locking tab and tool-free OneSeal gasket make these Graco airless spray tips practical, reliable and easy to work with on busy trade sites.
✔ Consistent finish with less downtime: A clean, consistent spray pattern helps decorators achieve a better finish, while the reverse-to-clear design makes it quick to deal with blockages and keep the job moving.
| Brand | Graco |
| Type | Spray Accessories |
| Suitable For | Designed for spraying coatings requiring higher atomisation pressure |
| Key Features | Offer enhanced durability and performance, making them ideal for professional use in challenging conditions |
| Weight | 0.05 kg |
| SKU | HDA427 |
| GTIN / Barcode | 633955313972 |
Product Description
Graco RAC X HAD Airless Spray Tips
Are built for spraying thicker, less fluid and more abrasive coatings that need higher pressure to atomise properly – including airless plaster, high-build materials and demanding interior/exterior applications. If you’re chasing high production, reduced downtime and a consistently clean finish, HDA tips are a proven upgrade.
Key benefits:
- High-quality finish, job after job – consistent spray pattern for a cleaner result.
- Designed for high-pressure work – ideal for coatings that need extra atomisation.
- Easy tip size identification – large, raised numbers stay readable even when covered in paint.
- Secure fit in the guard – locking tab helps keep the tip firmly in place.
- Fast switch between spray and reverse – snaps confidently into position to clear blockages quickly.
- Tool-free OneSeal gasket – installs easily with no tools.
- Solvent seal option available – for use with extremely hot solvents (where required).
Why choosing the right airless spray tip matters:
The spray tip has a direct impact on finish quality, speed and material usage. The wrong tip can increase overspray, waste paint, slow your progress and push your sprayer harder than necessary. The right tip helps you:
- Reduce overspray.
- Improve control and finish.
- Work faster.
- Use less paint.
- Protect your sprayer.
- Increase profit per job.
How airless tips work (simple explanation):
An airless sprayer pressurises the coating and forces it through the tip’s tiny orifice at high pressure (often up to 3,000 psi, depending on the system). This creates a controlled fan pattern, similar to putting your thumb over a garden hose to change the spray.
Your sprayer controls:
- Flow.
- Pressure.
Your tip controls:
- Fan angle (spray width).
- Orifice size (volume of material).
The tip you choose also affects how hard the pump must work to hold pressure, especially with thicker materials.
How to read tip sizes (fan width + orifice):
Fan width (first digit):
The first number indicates the spray angle. For example, a “5” = 50°. At roughly 12 inches from the surface, fan width is approximately:
5 × 2 = 10 inch fan width.
Orifice size (last two digits):
The last two digits show the orifice size. For example, “17” = 0.017 inch (0.43 mm).
Your actual output depends on:
- Pressure (higher pressure = more flow).
- Coating viscosity (thicker coatings = less flow).
Important: Never exceed your sprayer’s maximum recommended tip size.
Tip wear: the hidden cost that kills performance:
Airless tips wear over time, especially with abrasive materials and higher working pressures. A worn tip doesn’t just affect finish; it can quietly increase paint usage and labour time.
Think of it like a worn drill bit in concrete: it works slower, needs more effort, and the result looks worse. Spraying with a worn tip can also push your machine beyond its output limits.
Replacing tips on time often costs far less than the extra labour + wasted paint caused by a worn tip.
Frequently Asked Questions
What are Graco RAC X HDA tips used for?
What’s the key benefit of “Heavy Duty Atomisation”?
How do I read the tip size numbers (e.g., 517)?
Why does choosing the correct tip matter for profit?
When should I replace an airless tip?
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