Protective Coatings Sprayers.

When your project demands a flawless finish, our range of high protection coating spray solutions delivers unparalleled durability and precision. We stock everything you need, from Graco's Single Component Protective Sprayers for straightforward jobs to advanced Plural Component Protective Sprayers for complex materials. Whether you're applying a tough clear coat protective spray or tackling heavy-duty industrial coatings, this equipment is engineered for professional applications, ensuring you achieve a suitable, long-lasting result every single time.

FAQs

Common questions answered.

Five of the questions we hear most often on carpark and street linemarking gear. Full knowledge base on our FAQ page.

  • Which protective coatings sprayer for shipyard work?

    Shipyard hull and deck protective coatings typically need high-pressure, high-flow airless. Graco King 45:1 (K45FH2) is the standard heavy-duty hydraulic unit for shipyard work. Matches the viscosity and coverage demands of industrial epoxy and polyurethane coatings. Around 180 CFM compressor required. For smaller portable shipyard work (touch-up, repair, tank interiors), GX 21 (17H219) handles up to its tip-size limit. For high-build mining-spec protective coatings in hazardous-area zones, King E60 (6000 PSI rated, hazardous-area approved) is the right call. Talk to GO with the coating spec sheet and we will match the unit.

  • Do I need a desiccant drying system?

    For epoxy, polyurethane, polyurea and other moisture-sensitive coatings, yes. Compressed air carries moisture from the compressor; if that moisture reaches the spray gun on a moisture-sensitive coating, the result is adhesion failure, blistering and warranty rework. The Graco 3-Stage Desiccant Drying System removes moisture from the air supply before the gun. Standard on plural-component protective coatings work.

  • Conventional spray (Triton) versus airless for protective coatings?

    Airless (GX 19 / 21, King 45:1, King E60) for high-coverage protective coatings work where airless throughput matters. Conventional spray (Triton Cart Kit pressure-pot) for fine-finish protective coatings where airless atomisation is too aggressive - typically specialty epoxy or polyurethane finish coats. Most protective coatings contractors run airless for the bulk and conventional Triton for the show-side finish coats.

  • Plural-component protective coatings: which sprayer?

    Plural-component (epoxy, polyurethane, polyurea) needs a plural-component proportioner sprayer - Graco H-XP, Reactor or similar with at-the-gun mixing. Standard ratios are 1:1, 2:1 and 4:1. Match the proportioner to the coating spec sheet. For lower-viscosity 1:1 epoxies the King 45:1 with appropriate gun setup can be used. For true plural-component proportioning, talk to GO with the coating spec sheet for matched unit selection.

  • Do you offer on-site commissioning for protective coatings?

    Yes. On-site training and commissioning available Australia-wide for King series, GX 19 / 21, Merkur, ToughTek, Mark series and the wider industrial range. Protective coatings commissioning typically includes operator training on the specific coating system, calibration of pump pressure and tip selection against coating TDS, end-of-shift flush procedure and PPE per AS/NZS 1715 (respiratory) and the relevant SDS. Stock the matched RAC X SwitchTip set, hose, gun rebuild kit and end-of-shift flush fluid on first delivery. Pair with 3-Stage Desiccant Drying System on moisture-sensitive 2-pack work.

Full guide

Choosing the Right Protective Coatings Sprayer

Protective coatings sprayers for industrial maintenance, refinery, shipyard, marine and bridge work. The Merkur and King ranges from Graco are the air-driven and hydraulic-driven units capable of spraying the high-build, high-viscosity 2-pack epoxy, polyurethane, intumescent and zinc-rich primers used on industrial steel and infrastructure.

Solvent-on-steel: air-driven only. Standing rule from Graco technical (Jeff Nind): solvent-based industrial coatings on steel need an air-driven airless because the electric motor on an electric sprayer is a spark risk on a flammable-coating site. Merkur ES 30:1 and Merkur 30:1 for daily solvent-on-steel. Merkur X48 (48:1, 4800 PSI) for Jotacote 605 2-pack epoxy. King E60 (6000 PSI, hazardous-area approved) for high-build mining. King 70:1 for intumescent.

Heavy-duty hydraulic: King 45:1, King E60. Heavy Duty King 45:1 (K45FH2) for high-pressure, high-flow protective coatings. Hydraulic-driven, matched ratio for industrial coating viscosity. King E60 steps up to 6000 PSI hazardous-area for high-build mining coatings. Around 180 CFM compressor required for King 45:1.

Conventional spray: Triton Cart Kit. Triton Cart Kit covers conventional spray work on protective coatings - lower pressure than airless, atomisation by air, suits the operator who wants the finer conventional pattern on smaller-area protective work.

Compressor + dryer: 3-Stage Desiccant Drying System. Air-driven sprayers need clean dry compressed air. Moisture or oil in the compressor air contaminates the coating and damages the sprayer. The 3-Stage Desiccant Drying System sits between the compressor and the sprayer, removing moisture, oil and particulate to deliver coating-grade air to the air-driven sprayer.

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Not sure which one's right?

Tell us the carpark size, how often you'll use it, and whether you need battery or petrol. We'll come back with a shortlist and a trade quote within the day.

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