![]() ![]() We are a global company who specialize in the correction and protection of stainless steel in harsh environment's, the worst being indoor pools. This can be done whenever you find the pitting. It would have been better, had you specified the handles made of AISI 316L which could have given you much more longer life.The simple solution would be, take a 80 Grit Emery Strip & polish it with hand which will remove the Pits immediately. In a place like UAE, it is very common due to the saline air conditions. I wish you best of luck solving your problem. I believe the HK company with this coating recently re-opened offices in Kuwait for the application of this coating and may be able to help many years ago -the applicator is based in Dubai also. At that time, we selected a plastic coating solution and our client was very happy with the result I was employed by a construction company, and I have witnessed doors constructed from SS316 corrode so badly over a seven year period they had to be replaced!. Also, some LLDPE Sintercoat coatings are acid resistant, non-toxic, food & water contact safe and fire rated in a similar manner to pipe insulation- much safer in the event of a fire, where most of the damage is caused by smoke and fumes. [LLDPE based polymers have greater adhesion to the substrate Some sintercoat LLDPE thermoplastics have been in use for 21 years now, and have been very successful in South Asia, which has similar high UV, humid and saline conditions. For true corrosion resistance in humid, saline areas like UAE, I believe you should COAT stainless steel with a clear thermoplastic - this retains the appearance of the finish and some manufacturers boast a 25 year warranty. There are other formulations on the market that can help, but we have seen many situations like this recently that are constant maintenance headaches.Ī. Good lots of 304 should withstand the conditions you mention. Some of the 304 stainless steel on the market today is not very good, but all 304SS is subject to corrosion in chloride atmospheres. This is very difficult to remove! The nitric acid will not normally remove it. By looking at the picture it is obvious that you have some pit corrosion on the surface. ![]() The Nitric Acid oxidizes the exposed nickel into a controlled oxide and at the same time it removes the iron from the surface.Ī. Rubber gloves protective chemical gloves Ĭlean the door handles less frequently if you take them off the doors and Passivate in 50% Nitric Acid. 304 will rust very fast in hot humid climates as door handles frequently grasped with acid sweaty perspiration.Ĭlean the door handles frequently with rubber 304 will rust faster in hot humid climates. ![]()
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