DOUGCO 1073 34TH STREET OAKLAND, CA 94608 (510) 654-6256 (510) 654-8285 - fax Formerly
Types of Porosity Basically porosity, regardless of cause, can be classified as: 1.   Enclosed Porosity This type would not cause a problem in a casting unless it is exposed in a subsequent machining operation. 2.   Blind Porosity Blind porosity can lead to internal corrosion, spotting or blow-out of any finishing coating. 3.   Through Porosity This sometimes occurs in as-cast areas of castings, but usually appears in machined areas. This type of porosity will obviously cause leakage through a wall section of an otherwise sound casting, which must be scrapped or reclaimed by impregnation. [ PREVIOUS ][ NEXT ] If leakage due to porosity is costing you precious time and money, call  DOUGCO today, (510) 654-6256 or send us an email at:   info@dougcometalfinishing.com  and see how we might be able to help you solve your porosity problems!