AL420-30-KIT | Wet Sandblast Kit Surface Prep for Pressure Washers
AL420-30-KIT — 3 GPM 3,650 PSI Wet Sandblast Kit is a professional wet sandblasting package
engineered to turn compatible, high-flow pressure washers into controlled, high-energy blasting systems for fast
removal of coatings, rust, scale, and stubborn residues on metal, concrete, stone, and other durable substrates.
Rated for up to 3 GPM at 3,650 PSI, it uses the momentum of water to accelerate abrasive media
at the surface while suppressing dust, moderating heat, and reducing rebound compared to dry blasting—translating
into cleaner work areas, fewer airborne particulates, and simpler end-of-job cleanup.
Why a 3 GPM / 3,650 PSI Wet Sandblast Kit
High-Energy Removal with Dust Suppression
By combining high flow with substantial pressure, the AL420-30-KIT generates a high-velocity water/abrasive plume
that cuts through epoxy, paint, rust, and scale quickly. Because the abrasive is carried in water, dust clouds are
dramatically reduced, rebound is gentler, and spent media settles quickly for easier containment and disposal—
key advantages in facilities, shipyards, and fleet bays where air quality and housekeeping matter.
Venturi Injection for Even, Controlled Cutting
At the heart of the kit is a venturi-style injector that pulls abrasive through a suction line and meters it
smoothly into the pressurized stream. This design produces a coherent, high-velocity plume that maintains energy
across distance, delivering consistent cutting action and an even, repeatable surface profile that
is ready for rinse-down, inspection, and recoating.
Serious Surface Prep
AL420-30-KIT The 3 GPM flow rating targets larger pressure-washer platforms and high-production surface-prep work. Crews can
cover more square footage per hour while maintaining the energy needed to handle heavy coatings and stubborn
contamination on steel, concrete pads, ship hardware, and industrial equipment.
Venturi System & Hardware Design
Corrosion-Resistant Blast Head
A corrosion-resistant nozzle assembly, reinforced fittings, and wear-conscious flow paths preserve sealing
integrity and hydraulic efficiency during extended duty cycles. The design protects critical components from
high-speed abrasive impact and aggressive water chemistry, supporting long service life under demanding use.
30-Foot Suction Hose for Continuous Draw
The included AL420-30-KIT 30-foot suction hose supports uninterrupted abrasive draw from larger media
containers staged outside the immediate work zone. This reduces repositioning, keeps heavy bags and drums out of
trip paths, and helps maintain smooth, continuous production across long passes.
Media Versatility & Process Control
Compatible with Non-Silica Blast Media
The AL420-30-KIT works effectively with widely used non-silica abrasives such as garnet, crushed glass, or baking
soda. Operators can match particle hardness and size to the target material and desired anchor profile—whether
stripping epoxy from steel, removing oxidation on equipment frames, scouring marine growth from hardware, or
clearing paint and graffiti from concrete and brick.
Simple Setup and Tuning
Setup is straightforward and repeatable: attach the blast head to the pressure washer wand, place the suction
probe into the abrasive container, and start water flow. The venturi generates suction automatically and blends
media evenly with minimal surging. Fine-tuning is achieved by selecting pressure and standoff distance appropriate
to the surface, choosing a media grade that balances aggressiveness and finish quality, and maintaining a steady
traverse speed to preserve plume coherence while limiting excess media consumption.
Operator Experience & Jobsite Advantages
Cleaner Work Zones and Gentler Rebound
Because water carries and cushions the particles, operator exposure to dust is reduced and rebound is less
violent than with dry blasting. Spent media and removed coating settle quickly, making containment and cleanup
more manageable and improving visibility around the work area.
Efficient Production on Demanding Jobs
The kit’s efficient hydraulic path and balanced injection help crews achieve uniform removal rates
and consistent surface profiles with fewer re-passes. Teams spend more time cutting and less time dealing with
clogs, surging, or messy dust control workarounds, which directly improves footage-per-hour and job profitability.
Maintenance & Best Practices
Flush and Inspect Wear Points
Routine care keeps the kit delivering consistent results. After blasting, flush the head and suction line with
clean water to remove residual grit, inspect the orifice and wear surfaces, and store the assembly dry to protect
sealing faces. Periodic checks of threaded joints and hose condition help keep the unit leak-free under pressure;
replacing worn orifices at sensible intervals preserves cutting power while avoiding unnecessary load on the
pressure washer.
Media Hygiene for Predictable Flow
Good media hygiene pays off: keep containers covered to prevent moisture ingress that can cause clumping, strain
out oversized fragments that could impede flow, and use clean, compatible abrasives for predictable venturi
metering. Consistent media quality supports stable suction, uniform plume density, and reliable surface results.
AL420-30-KIT | Wet Sandblast Kit Surface Prep for Pressure Washers
- Wet sandblast kit rated 3 GPM at 3,650 PSI for high-production surface preparation.
- Venturi-style injector draws and meters abrasive smoothly into the pressurized water stream.
- Includes 30-foot suction hose for continuous draw from remote media containers.
- Corrosion-resistant blast head and reinforced fittings for extended duty cycles.
- Compatible with common non-silica abrasives such as garnet, crushed glass, and baking soda.
- Water-assisted blasting reduces dust, moderates heat, and softens rebound compared to dry blasting.
Priority Applications
Coating Removal, Prep & Restoration
- Prepping steel for repainting, priming, or inspection.
- Removing epoxies, paints, and aged sealers from concrete and masonry.
- Cleaning industrial equipment frames and structural members.
- Scouring marine growth and corrosion from hardware and hull components.
- Graffiti removal and restoration work on durable substrates.
AL420-30-KIT | Wet Sandblast Kit Surface Prep for Pressure Washers
The AR AL420-30-KIT Wet Sandblast Kit provides a practical, repeatable method that balances power,
control, and cleanliness for professional surface preparation. With its 3 GPM / 3,650 PSI rating, venturi
injection, 30 ft suction hose, and water-assisted dust suppression, it converts compatible pressure washers into
efficient coating-removal systems that help crews move quickly through demanding jobs with less mess and more
consistent, high-quality results.





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