Health What is Aeroglaze used for? What is Aeroglaze used for? Aeroglaze® Z302 absorbent polyurethane is for application to substrates used in space operations, which include those where coatings must have low outgassing characteristics while providing high thermal absorption properties. Related Posts:What's the difference between wipe on or brush on?Is there a polyurethane for exterior use?Can polyurethane be applied with a spray gun?The Home Depot food-safe finishes are food safe and can be used in your kitchen.