Undercoating Spray Gun

Spray Gun designed for spraying undercoating, protective waxes, soundproofing and gravel protection.

  • Nickel plated brass body
  • Aluminum tank
  • Stainless steel needle
  • Set up to spray 1 Liter cans, USA quart cans (BS/A USA) or loose fill
  • Approximate air consumption: 200-300 L/min (7-10 CFM)
  • Working pressure: 3-4 bar (max. 10 bar) 40-60 psi (max. 140 psi)
  • Weight: 1.6 kg/4 1/2 lbs.
  • Made in Italy
  • Product ID: BS/A WB


The BS undercoating spray gun features three adjustments: air flow, product flow, and product atomization allowing the user to recreate a wide variety of patterns and textures. Supplied with a set of spray wands to apply wax based rustproofing in doors, cavities, beams etc. This under coating spray gun is hermetically sealed which prevents the product from hardening during work breaks.

An optional undercoating wand is available for application in hard to reach places, i.e. around mufflers, exhaust pipes, etc.

Undercoating Wand

The BS/A WB can be equipped with the optional Undercoating Wand (item # BS39). This allows for spraying of Undercoating in hard to reach places behind mufflers, exhaust pipes, etc.

Wand Installation

To install the wands:

  1. Close the air regulator on top of the tank (BS45) (BS/A WB Model Only)
  2. Remove the sprayhead cap (BS02)
  3. Attach the desired wand to sprayhead (BS03)
  4. Open air control knob (BS19)
  5. Adjust product flow as needed by turning product flow control knob (BS09)

Wand Cleaning

Purge all product from the wand by pulling the trigger halfway
Rinse the wand with a solvent/water to dissolve the product left inside.


When spraying cleaning solvents with the gun, ALWAYS close the Air Control Knob (BS19) first. Atomized solvents are extremely flammable. Properly dispose of cleaning solvents as per local regulations.



Undercoating & Rustproofing Gun

Undercoating spray gun features an adjustable nozzle designed for spraying undercoating, rustproofing and other thick liquids with different textures and thicknesses.


Undercoating & Rustproofing Gun with Wands

Built for industrial use by body shops, car dealerships and undercoating professionals yet it can easily be used by any hobbyist or do-it-yourselfer.


Undercoating Economy Spray Guns

Spray gun designed for the application of soundproofing, gravel protection and bituminous/wax-based rustproofing and undercoating.


Rust Proofing Gun

Professional rustproofing gun designed to apply protective coatings inside doors, beams, rocker panels and other cavities.


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