Material defect means the raw materials forming a product that no longer fit for use due to defect from the supplier, defects at the time of delivery, defects due to poor storage method and other reasons. Material defect would result in decreased quality if passed the examination early in the process.
Defective found in the finished product probably caused by material defects. Therefore, monitoring the product not only when the product reaches the end of the process (finished goods), However starting in the form of raw material / materials must be ensured that the material meets the specified quality standards.
All defective caused by such matters should be minimized. Because early detection of defective product will ensure the quality expected. The most important thing to do is stick to the basic manufacturing of 5S activity is a priority in every activity and the treatment material in accordance with the conditions and specifications of the material itself.