Stop rust on bottom of truck - Nissan Frontier Forum
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#1 (permalink) Old 07-16-2011, 09:28 AM
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Stop rust on bottom of truck

what should i do to stop the rust on the bottom of my truck.
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#2 (permalink) Old 07-16-2011, 09:53 AM
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Here on the coast we use alot of ospho metal treatment if its already rusty and then you could undercoat it. Ospho is a mild acid that kills rust, or slows it down anyway. no way to totally kill it once started. Unless you live where they salt the roads or spend alot of time at the beach it really shouldn't be a problem

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Lifetime fuel info
total miles 68390, 224 fillups, Total gallons used 4021, Total spent on fuel 13411.00 Lifetime mpg 17.

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Mods
Truxedo Truxport Tonno
Window tint
Custom utilitrack mount for side toolbox
tractor supply side toolbox and xover chest
Scanguage
Fyrefly White LED dome and map lights
Hypertech (if they ever get it to work on a 13)



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#3 (permalink) Old 07-16-2011, 05:35 PM
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i was think about sanding it then spary piant the bottom i was woundering if thier is a piant made for this.
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#4 (permalink) Old 07-16-2011, 08:20 PM
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most paint will be a temporary cover at best.

2011 SV Crew Cab long bed 4x4 Purchased 4/13/11 Totaled 10/14/13
Lifetime fuel info
total miles 68390, 224 fillups, Total gallons used 4021, Total spent on fuel 13411.00 Lifetime mpg 17.

2013 Sv Crew Cab long bed with Sv utility Package Purchased 10-24-13

Mods
Truxedo Truxport Tonno
Window tint
Custom utilitrack mount for side toolbox
tractor supply side toolbox and xover chest
Scanguage
Fyrefly White LED dome and map lights
Hypertech (if they ever get it to work on a 13)



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#5 (permalink) Old 07-16-2011, 10:09 PM
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por 15 works pretty well but it is a bit pricey. A stated above once started nothing really stops it but por does a pretty good job.

2009 Frontier SE crew cab
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#6 (permalink) Old 07-17-2011, 12:18 PM
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how about sanding it and then puting on some rust-oleum spray flat protective enamel spray paint
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#7 (permalink) Old 07-17-2011, 05:16 PM
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It will work for a little while, but its not long term. It will last longer in low humidity and non salty areas. if you put several coats on it it will help out the longevity.if you want to use a rattle can why not get some duplocolor bed liner. I would still ospho the rust but the bedliner should go on thick enough to seal the metal.

2011 SV Crew Cab long bed 4x4 Purchased 4/13/11 Totaled 10/14/13
Lifetime fuel info
total miles 68390, 224 fillups, Total gallons used 4021, Total spent on fuel 13411.00 Lifetime mpg 17.

2013 Sv Crew Cab long bed with Sv utility Package Purchased 10-24-13

Mods
Truxedo Truxport Tonno
Window tint
Custom utilitrack mount for side toolbox
tractor supply side toolbox and xover chest
Scanguage
Fyrefly White LED dome and map lights
Hypertech (if they ever get it to work on a 13)



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#8 (permalink) Old 07-19-2011, 06:10 PM
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I find the best piant is an oil based. But instead of flat spray use gloss brush on. Goes on much thicker and last longer, the gloss also helps prevent mud and dirt from sticking. That way it sprays off easier. Flat paint attracts dirt and it doesn;t come off easily. Dirt holds moisture which increases rusting.

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#9 (permalink) Old 07-19-2011, 10:32 PM
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I am in CA so rust is not as much of an issue here but every oil change I will crawl around under the truck and check for any rust spots near welds, frame and chasis joints and suspention areas and just give them a good cleaning with a stainless wire brush till I hit clean metal then 2 coats of Rustoleum Rust Kill primer in flat black. Seems to do the trick and I have not had to redo any areas yet and it's a 2008. A final coat of gloss or semi gloss black after the primer dries doesn't hurt either.

I do not recommend useing por-15 or bedliner spray to stop rust on bare metal. Both those products are great and I use them both but they are not as much of a flowing liquid as spray paint is and don't seem to get into scratches, chips and weld seams as well as spray paint. Also I find on bare metal both products mentioned can still get moisture or condensation behind them and devlop rust behind the coating which you won't notice till a bubble forms or it chips off and you see the rust. If you do use these go with a base coat of rust killing primer first then use them as a protective coat for that.
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#10 (permalink) Old 07-19-2011, 11:27 PM
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well i started paint the the bottom with rust-oleum spray flat protective enamel spray paint. should i put a layer of gloss paint over it.
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