WATERMARKS IN POWDER COATINGS
WATERMARKS IN POWDER COATINGS
(OP)
We currently powder coat our steel products. Before they are coated they are cleaned in a Mecwash machine. We are experiencing problems in the way of water sitting in hidden parts and only becomes noticable once coated. We currently sending parts through the oven before coating and then back through the oven once the powder is applied- doubling our cycle time. Does anyone know of a way to eliminate this water contamination and cutting our cycle time down without heavy investment?





RE: WATERMARKS IN POWDER COATINGS
Good Luck !
RE: WATERMARKS IN POWDER COATINGS
Thank you for your response. We are currently investigating higher temperatures to flash off the water, in the form of adding an IR oven into the process. Another test we are trying is drying the components in a vacuum - this lowers the temperature the water boils off at but may proven too expensive. I hadnt thought of reversing the air flow - instead of a vacuum a 'hair dryer process' I will lok into this idea. Many thanks for your help, - Guesty
RE: WATERMARKS IN POWDER COATINGS