For general maintenance instructions for your Fiber-Reinforced Plastic (FRP) Gel Coat System, refer to manual 3A2012 on www.graco.com. Better yet, contact your local Graco equipment distributor to learn about maintaining and servicing your FRP equipment. Not sure who your local Graco distributor is? This link might help: www.graco.com/au/en/in-plant-manufacturing/how-to-buy/where-to-buy.html?wtb_code=GCM,GCA