TLC for Spray Guns
Simple cleaning and lubrication keep a spray gun in top form
Synopsis: Without careful maintenance, it won’t be long before a spray gun starts spitting. Andy Charron explains here how to maintain your sprayer equipment, be it high pressure, high volume (HVLP), low pressure, or turbine-powered. He uses old toothbrushes and fresh toothpicks to remove gummy finish without damaging the gun. You need to take special steps for when you switch finishes, and lubricate anything that moves. He also shows how to clean the gasket, clear the air passages, and remove the air cap and fluid nozzle.
When I first began spray finishing, I was thrilled with how easy it was to lay down smooth, blemish-free topcoats with any material imaginable. I was less thrilled with dismantling the gun and cleaning it after each use. I let neglect run its course, and it wasn’t long before the gun protested by spitting instead of spraying.
A spray gun needs a…