TCP Global Air Undercoating Spray Gun with Gauge & 25 oz Suction Cup, Adjustable Regulator and 2 Extension Wands

Engineered for both shop technicians and weekend DIYers, this spray gun pairs a die-cast aluminum body with a built-in regulator and gauge to make consistent coating results easier to achieve. The 25-ounce aluminum suction cup keeps solvent, oil, and water-based coatings flowing, while two 22" flexible extension wands let you reach seams, hollow sections and tight wheel wells without disassembling panels.

How does this spray gun deliver consistent texture and coverage?

The TCP Global gun uses precision machining and a balanced, lightweight design to stabilize spray patterns and reduce operator fatigue. By adjusting air pressure via the built-in regulator and changing nozzle orientation, you can create anything from a thin protective film to a heavier peened undercoating.

• Adjustable air regulator with clear gauge for repeatable pressure settings
• Precisely machined nozzle and trigger for steady atomization
• Two extension wands for directed spray and even overlap
• Alloy body keeps weight down for long sessions

Which materials and coatings can I use with it?

This gun accepts a wide range of viscosities, making it compatible with common automotive underseals, rust inhibitors, rubberized chip guards, and many bed-liner formulations. The suction-feed cup handles oil, solvent, and water-based products, but always check your coating manufacturer’s instructions regarding atomization methods.

• Suction-feed cup for low- to medium-viscosity coatings
• Safe for oil, solvent, and water-based formulations when used per directions
• Works with rustproofing, undercoating, chip guard, and bed-liner products
• Two nozzle styles to match material flow and application pattern

How do the included extension wands improve access to hard-to-reach areas?

The kit includes two 22" flexible extension wands: one with a multi-directional tip for spraying internal cavities and hollow frame members, and a straight wand for long, focused reach. These let you coat inner rocker panels, crossmembers, and wheel wells without removing trim or disassembling components.

• Multi-directional nozzle for internal cavities and hollow sections
• Straight nozzle for long, targeted spray paths
• Flexible shaft bends to follow contours and maintain distance
• Reduces need to dismantle vehicle panels for complete coverage

What controls and ergonomics help during extended use?

The gun’s die-cast aluminum alloy body balances strength with light weight so it stays comfortable during long jobs. An easy-grip trigger and built-in pressure regulator let you fine-tune output and keep a steady rhythm, while the 25-ounce cup reduces refill frequency on large projects.

• Comfort grip trigger for reduced hand fatigue
• Integrated air regulator and gauge for on-the-fly adjustments
• 25-ounce suction cup minimizes interruptions for larger areas
• Durable metal body suited to workshop environments

Who this is for: The TCP Global Air Undercoating Spray Gun is intended for professional auto shops, restoration specialists, body shops and serious DIYers who need a reliable pneumatic tool to apply rustproofing, protective undercoats, chip guard and bed-liner products. It’s a practical choice when you want precise pressure control, long reach into panel cavities, and the ability to work with solvent, oil, or water-based coating formulas without switching equipment.