Permatex 80370 Battery Protector and Sealer, 5 oz. net Aerosol Can

I've used this Permatex product for many years and with a good coating it completely prevents corrosion on the battery terminals (use Permatex 80369 Battery Cleaner first if you already have corrosion link below). Even if you don't consider yourself a 'do it your selfer', this is very easy to apply and is a must have. It will prevent battery cable damage and save you from getting stranded because of poor cable connectivity caused by corrosion.

Permatex 80369 Battery Cleaner 6 oz aerosol can, 5.75 oz net wt

I used it on a rusty battery terminals after cleaning them off. It works fine at preventing rust. The only thing is that the bottle is relatively small and that I think rust can be prevented using any grease no need for special "battery grease".

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This stuff is impossible to find at local auto parts stores. Both walmart and auto parts stores carry a different brand, which leaves the red coating and is in a much smaller bottle. However, i've come to realize over the years that Permatex products are good-to-go, top-notch products. From brake cleaner to this stuff, you can't go wrong with Permatex. This product goes on purple, and one can immediately tell the difference in material quality over the other brands. Does a phenominal job at preventing corrossion on battery terminals. Good stuff.

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Corrosion was eating away at the positive terminal of my 2010 Nissan Titan to the point where I had to replace the terminal connector itself. I cleaned it several times with various advertised products, only to have it return. This was the only product that kept it from coming back. Kind of seems like a spray paint. I also tried vaseline which didn't work at all to prevent the corrosion.

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Foul smelling. Messy. It probably protects okay, but you'd better mask off all adjacent areas before spraying. Otherwise you'll have nasty purple gunk everywhere you don't want it. It is difficult to spray just the right amount in only the area you intend it to go. I expected it to dry or set up, but it's pretty runny and I don't think it ever sets up. Maybe that's what it's designed to do, but I had hoped for something less messy than petroleum jelly or grease products, but this isn't it.