Master Airbrush Undercoating Spray Gun 25 oz Suction Feed Cup with Regulator and 2×22" Extension Wands

The Master Airbrush Elite Undercoating Spray Gun is a professional pneumatic undercoat gun with a 25 oz suction feed cup, regulator with gauge, and two 22-inch extension wands for precise rust-proofing and bed-liner work.

Built for automotive shops, restoration projects, and serious DIYers, this spray gun combines a heavy-duty die-cast aluminum body with features tuned for undercoating, chip guard, rubberized treatments, and other corrosion protection coatings. Its large 25-ounce suction cup reduces refills on big jobs, the included regulator and gauge let you dial in spray pressure, and the flexible extension wands reach frame cavities where rust starts.

How does this gun handle thick undercoating and rubberized sprays?

The Elite gun is designed to tolerate higher-viscosity coatings by pairing a powerful pneumatic nozzle with a large-capacity suction cup and a pressure regulator. Use the gauge to slowly increase pressure until you achieve a consistent pattern without spitting or runs.

• Adjustable air pressure regulator for fine-tuning spray force
• Large 25 oz (750 ml) suction cup minimizes mixing and refill interruptions
• Die-cast aluminum body for stable spray performance under load

Can I reach inside frame rails and tight cavities?

Yes — the set includes two 22-inch flexible multi-directional extension wands made specifically to access hollow sections, inner fenders, and frame rails. The wands flex and pivot for targeted delivery, so you can coat hard-to-reach spots without disassembling components.

• Two 22-inch flexible wands for internal cavity coverage
• Multi-directional tips enable angled spraying and exact placement
• Suction-feed design supplies continuous material flow to the wand

What controls and ergonomics help me work longer with less fatigue?

The spray gun uses a lightweight, precision-machined aluminum alloy body and an easy-grip trigger to reduce hand strain during extended use. The built-in regulator and gauge let you set pressure quickly so you spend less time adjusting and more time spraying consistently.

• Ergonomic trigger handle for better grip and reduced fatigue
• Compact, well-balanced die-cast construction for steady control
• Integrated regulator with gauge for repeatable pressure settings

What preparation and maintenance keep the gun performing well?

Flush the suction cup and internal passages after each use with the solvent recommended for your coating to prevent clogging. Regularly inspect the nozzle and wand connections for wear and tighten fittings to maintain air seal and spray pattern fidelity.

• Clean immediately after use with appropriate solvent
• Check and tighten fittings and wand joints before each job
• Store dry to avoid corrosion of moving parts and seals

Who is this for? The Master Airbrush Elite Undercoating Spray Gun is aimed at professional body shops, collision and restoration technicians, fleet maintenance crews, and advanced DIYers who need a robust, high-capacity tool for rust-proofing, bed liners, chip guard, rubberized coatings, and other protective applications. If you require reliable pressure control, deep access to cavities, and fewer refills on large jobs, this kit was made for you.