What are the precautions to be taken for the proper storage of MMAW electrodes?
Electrodes should be kept in a dry and well ventilated store where the humidity is below the general level. It is advisable to return unused electrodes to the store instead of keeping them exposed to an unheated and possibly damp environment where they can pick up moisture. The ideal storage conditions are 10 Celsius above external air temperature and 0 – 60 relative humidity. It is important to note that if the relative humidity is below 60%, electrodes do not absorb moisture. Therefore a temperature of 10 Celsius above the external air temperature is recommended for best results. Redrying – Although all possible precautions are taken at the manufacturer’s end to eliminate the absorption of moisture by electrodes when packed, but the danger always exists. This is because moisture tends to get in through the pores in the polythene wrapper or the wrapper may itself get damaged during transit or handling. Lastly polythene itself permeable to moisture over a long period of time. Therefore
