How do you apply release agent? The easiest way is to spray it on. This Chapin Industrial Sprayer is built specifically for release agents by spraying 30-35% solids. It has a wide mouth for easy filling and cleaning. A 14” heavy duty brass pump with an ergonomical pump handle makes pressurizing the tank easy and comfortable. A 24 inch curved brass extension wand for getting into the nooks and crannies makes this the perfect tool to use with World Block Plus Release Agent.