Kwik-Chek Crack Detection Spray Kit for Aluminum ******GROUND SHIPPING ONLY**** Part#: KCK . For aluminum, ductile iron, etc. Non-fluorescent usage. Complete kit for detection of cracks in aluminum cylinder heads. See Chart below for complete list of parts Part No. Description KCK Kit includes 1 of each below KCK-1 Aerosol Penetrant, 8.5 oz. KCK-2 Aerosol Dye Remover, 7.5 oz. KCK-3 Aerosol Developer, 7.5 oz.