Expensedition
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In the northeast the first thing necessary to preserve your new vehicle is to have the bottom undercoated. Ideally the undercarriage should be undercoated as it reaches the dealer and before it is driven at all on salted roads. Not having that option I used a pressure washer, salt removing solution and an undercarriage wheel mounted sprayer manifold to clean the undercarriage prior to to applying and undercoating film.
In the attached image you see the typical arrangement with the salt removing solution injector at the fresh water supply connection on the pressure washer. There are many undercarriage spray manifolds out there but I bought the Coyardor 16" wheeled sprayer head, because it looked well built, and it is. It si also pretty inexpensive and can be found on Amazon.
The salt removing solution can be whatever you find to have the best reviews but honestly it mostly soap. From day one the bottom of your vehicle is affected by electrolytes with varying levels of PH. The mere presence of the partial pressure of oxygen that we breathe along with rainwater is enough to start the process of galvanic corrosion. The odds are all unpainted surfaces are already actively oxidizing the day the vehicle leaves the plant and sometimes before that.
The New Ford vehicles present a whole new problem today where the body is almost entirely Aluminum. The frame is steel along with many other attached parts including all of the fasteners (rivets [SPR's] are made of Boron Steel). Aluminum is less noble than steel making it the anode in the galvanic circuit. The aluminum body and steel frame are connected by ground wires (which are necessary) along with other metal fasteners that may not be insulated.
What is most important is the coating, typically the paint, which is your first line of defense against corrosion. This will be the major focus of post in the days ahead.
V/r
SM
In the attached image you see the typical arrangement with the salt removing solution injector at the fresh water supply connection on the pressure washer. There are many undercarriage spray manifolds out there but I bought the Coyardor 16" wheeled sprayer head, because it looked well built, and it is. It si also pretty inexpensive and can be found on Amazon.
The salt removing solution can be whatever you find to have the best reviews but honestly it mostly soap. From day one the bottom of your vehicle is affected by electrolytes with varying levels of PH. The mere presence of the partial pressure of oxygen that we breathe along with rainwater is enough to start the process of galvanic corrosion. The odds are all unpainted surfaces are already actively oxidizing the day the vehicle leaves the plant and sometimes before that.
The New Ford vehicles present a whole new problem today where the body is almost entirely Aluminum. The frame is steel along with many other attached parts including all of the fasteners (rivets [SPR's] are made of Boron Steel). Aluminum is less noble than steel making it the anode in the galvanic circuit. The aluminum body and steel frame are connected by ground wires (which are necessary) along with other metal fasteners that may not be insulated.
What is most important is the coating, typically the paint, which is your first line of defense against corrosion. This will be the major focus of post in the days ahead.
V/r
SM