AL420-KIT | 3650 PSI Wet Sandblast Kit AL420 Series

AL420-KIT | 3650 PSI Wet Sandblast Kit AL420 Series

The AR AL420-KIT Wet Sandblast Kit converts a compatible pressure washer into a high-performance
surface preparation tool, delivering controlled, dust-reducing abrasive cleaning for fast removal of paint, rust,
scale, and stubborn coatings on metal, concrete, masonry, and durable composites. Rated for up to 3,650 PSI within the AL420 Series envelope, the kit harnesses a venturi-style head
that draws media through a pickup hose and blends it with the pressurized water stream to form a tight, energetic
plume.

This precise mixture multiplies cleaning force while the surrounding water curtain suppresses airborne dust and heat,
helping protect sensitive substrates and improving visibility in work zones where conventional dry blasting would
require heavy containment.

Venturi Injection & Wet Blasting Process

Controlled, Dust-Reducing Cleaning

AL420-KIT  uses a venturi-style blasting head to draw abrasive media through the suction hose and meter it into
the high-pressure water jet. Once the trigger is engaged, the venturi pulls media steadily into the stream, producing
a focused cone that cuts through coatings while rinsing residue toward the floor of the work area.

• Venturi draw: smooth, consistent suction that prevents surging and maintains uniform removal.
• Water curtain: encapsulates dust and fines to reduce airborne particles and rebound.
• Temperature control: water moderates heat build-up to help protect thin or sensitive substrates.

AL420-KIT Performance, Envelope & Flow Path

High-Flow Surface Prep Capability

Within the AL420 Series rating of roughly 3,650 PSI, the AL420-KIT provides the throughput required for
large pads, walls, decks, and tank exteriors. The balanced internal flow path meters media smoothly to prevent
pulsation so removal remains even across passes—whether you are stripping steel, etching concrete, or refreshing
heavily oxidized equipment.

• High-flow compatibility: pairs well with industrial washers used in facilities, fleet, fabrication, and marine service.
• Uniform surface profiles: consistent plume energy helps produce predictable anchor patterns for coatings.
• Reduced rework: simultaneous cutting and rinsing lowers the risk of recontamination on adjacent parts.

Substrates & Typical Applications

Versatile Wet Blasting Across Materials

• Metal: shears oxides and paint layers without concentrating heat, helping minimize warping on thinner panels.
• Concrete & masonry: removes graffiti, sealers, mastics, and weathered coatings while the water softens impact and reduces micro-fracturing.
• Durable composites & equipment skins: prepares surfaces for primer or overlay without aggressive dry-blast rebound.

The compact head reaches brackets, flanges, corners, and irregular contours where grinders and wide fan tips struggle,
while the long suction line lets you stage abrasive supply for uninterrupted draw on lengthy shifts.

Setup & Operating Technique

Getting the Most from the AL420-KIT

• Attach the wet sandblast head to a compatible pressure-washer wand using appropriate quick-connect or threaded fittings.
• Place the pickup hose in a container of properly graded, dry abrasive media and verify an unobstructed draw path.
• Engage flow to start the venturi effect; adjust standoff distance and travel speed to tune aggressiveness and finish.

Operators can fine-tune performance by selecting coarser media and closer passes for rapid coating removal or lighter
abrasives and longer standoff for delicate substrates and finer surface profiles. Work in overlapping passes, maintaining
a consistent travel cadence to deliver even results and predictable prep times.

Care, Maintenance & Best Practices

Routine Aftercare

• At the end of each session, flush the blasting head and pickup hose with clean water to purge residual grit.
• Inspect the nozzle orifice, venturi throat, threads, seals, and clamps for wear or leakage; replace worn parts promptly.
• Store hoses coiled loosely in a dry location to maintain flexibility and protect sealing surfaces.

Media Management

• Keep abrasive containers covered to prevent moisture ingress and clumping.
• Verify that media is properly graded; strain out oversized fragments that could clog the pickup.
• Test settings on a small, inconspicuous area to confirm removal rate and target profile before scaling up.

Productivity, Cleanup & Integration

Cleaner Work Zones & Faster Turnaround

The kit’s wet blasting action reduces post-job cleanup because residue settles near the work zone rather than drifting
across the site. Crews move more efficiently between teardown, surface prep, and coating stages, often without the need
for full-scale dust containment associated with dry blasting.

Compatible with common quick-connect and threaded wand interfaces, the AR AL420-KIT integrates easily
with professional pressure washers operating in the specified flow and pressure range, offering a portable alternative
to large blast pots and compressors.

Summary:  AL420-KIT, wet sandblast kit, 3,650 PSI, has a venturi abrasive injection, it is dust-reducing blasting, during
coating removal, rust removal, concrete prep, industrial surface restoration, and pressure washer sandblaster