{"product_id":"zinc-alloy-martyr-cm55989z-button-mercury-mercruiser-anode","title":"Zinc Alloy Martyr CM55989Z Button Mercury\/Mercruiser Anode","description":"\u003cp\u003eBoater's World is your Sacrificial Anode Center.\u003c\/p\u003e\u003cp\u003eWe want to ensure engine troubles don't keep you from having fun on the water!\u003c\/p\u003e\u003cp\u003eNo matter where you choose to do your boating, we have all the right products to take care of your boat.\u003c\/p\u003e\u003cp\u003eRead this quick overview on how to protect your engine from corrosion!\u003c\/p\u003e\u003cp\u003eWhat causes corrosion?\u003c\/p\u003e\u003cp\u003eSeawater is a good conductor while freshwater is a bad conductor, so corrosion is worse in seawater.\u003c\/p\u003e\u003cp\u003eGenerally, corrosion rates increase in proportion to the amount of oxygen in the water.\u003c\/p\u003e\u003cp\u003eHowever, cracks and crevices, which are areas starved of oxygen, also become anodic and corrode.\u003c\/p\u003e\u003cp\u003eHigher temperature increases corrosion rates - doubling for every 30 degrees C (55 degrees F).\u003c\/p\u003e\u003cp\u003eVarious types of microorganisms can contribute to corrosion, either by removing protection or causing a corrosive environment.\u003c\/p\u003e\u003cp\u003eWhy do I need anodes?\u003c\/p\u003e\u003cp\u003eYou need anodes on your engine because when two different metals are in contact, electrons will flow from the more negatively charged metal (anode) to the more positive metal (cathode).\u003c\/p\u003e\u003cp\u003eTo protect both types of metal from corrosion, you must add a third metal such as zinc, although magnesium and aluminum are also used.\u003c\/p\u003e\u003cp\u003eThis active metal becomes the anode for both metals.\u003c\/p\u003e\u003cp\u003eThe zinc or aluminum sacrifices itself to protect the other two metals, hence the term 'sacrificial anode'.\u003c\/p\u003e\u003cp\u003eDo's and Don'ts DO change your anode when it is 50 percent corroded.\u003c\/p\u003e\u003cp\u003eDO make sure they have good electrical contact - remove paint and clean the mounting surface.\u003c\/p\u003e\u003cp\u003eDO protect trim tabs individually (do not bond).\u003c\/p\u003e\u003cp\u003eAlthough they are usually made from stainless steel, they can still corrode and need sacrificial anodes.\u003c\/p\u003e\u003cp\u003eDO be sure to use new fasteners on sterndrives - even stainless bolts fail as a result of corrosion.\u003c\/p\u003e\u003cp\u003eDO keep a sterndrive immersed in the water so that the anodes can work.\u003c\/p\u003e\u003cp\u003eDON'T use zinc anodes on aluminum outdrives.\u003c\/p\u003e\u003cp\u003eDON'T paint anodes.\u003c\/p\u003e","brand":"CMP GROUP","offers":[{"title":"Default Title","offer_id":51799026499866,"sku":"CMPCM55989Z","price":14.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/8942\/8506\/files\/81B2bS6x6KL.jpg?v=1772833331","url":"https:\/\/trybeepbeep.com\/products\/zinc-alloy-martyr-cm55989z-button-mercury-mercruiser-anode","provider":"TryBeepbeep","version":"1.0","type":"link"}