Custom Shop Bed Liner Spray Gun – Variable Nozzle, 1L Bottle with Regulator & Gauge

Custom Coat's Professional Variable Nozzle Bed Liner Spray Application Gun is an adjustable, air-regulated spray tool built to deliver consistent textured coatings from 1-liter bottles for bed liners, undercoating, rust protection, and chip guard jobs.

This spray gun combines a precision-machined aluminum body, a variable nozzle and an integrated air pressure regulator with gauge to give contractors and DIYers repeatable textured finishes. It is engineered to attach to standard 1-liter coating bottles and to handle heavier materials that require higher flow and atomization control. The tool balances portability and professional features so you can reproduce a specified texture across panels, truck beds, bumpers and chassis components.

How do I dial in the texture I want with this spray gun?

Texture control is achieved by rotating and locking the variable nozzle until the spray pattern and particle size match your target finish. Once you find the ideal setting, the locking mechanism preserves the nozzle position so subsequent passes remain consistent. Fine adjustment and repeatability reduce waste and touch-up work.

• Variable nozzle for coarse-to-fine texture control
• Locking collar secures chosen nozzle position
• Use with 1-liter bottles for quick material swaps
• Recommended operating pressure range: 40–60 psi for optimal texture

What air settings and fittings does the gun require for best performance?

The gun includes an inline air pressure regulator and a built-in gauge so you can set and monitor operating pressure at the tool. Typical spraying is done between 40–60 psi at 5–6 CFM for most heavy coatings; the gun can tolerate higher maximum pressures if needed. It accepts a standard 1/4-inch NPT air inlet for easy hookup to common shop air lines.

• Included regulator with gauge for on-gun pressure control
• Operating pressure: 40–60 psi @ 5–6 CFM
• Maximum safe pressure: 130 psi
• Air inlet: 1/4" NPT for standard compressor fittings

Which coatings and jobs is this spray gun compatible with?

The gun is intended for heavy-body coatings: bed liners, automotive undercoatings, rustproof treatments and chip guards. Its wide-bore feed and robust nozzle handle thicker viscosities that would clog conventional spray guns. Use appropriate thinning and pressure settings per coating manufacturer recommendations for optimal atomization.

• Fits standard 1-liter bed liner bottles and similar containers
• Works with undercoating, rust inhibitors and chip-resistant coatings
• Wide-bore path reduces clogging with heavier materials
• Lightweight aluminum body eases long-duration use

How durable and ergonomic is the design for frequent use?

The housing is precision-machined from lightweight aluminum alloy for a durable, balanced feel that reduces operator fatigue. A convenient gun hanger lets you park the tool when changing bottles or prepping panels. The regulator and gauge are mounted to the assembly to keep controls accessible and protect settings during transport and storage.

• Aluminum alloy body for strength and low weight
• Well-balanced layout reduces hand fatigue during prolonged spraying
• Integrated gun hanger for easy storage between coats
• Regulator/gauge assembly locks in pressure for consistent results

Who is this for? This application gun suits professional detailers, collision shops, automotive restorers and serious DIYers who require a repeatable textured finish from heavy coatings. Choose this tool if you need a portable, rugged sprayer that accepts 1-liter bottles, offers fine nozzle adjustment and lets you lock in air pressure for consistent, predictable results across multiple panels or vehicles.