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heres the steps i took.
i knew i should have taken pics for DIY for this..
Luckly i got to it b4 it was too late.
ok
1. take the fender liners off
2. goto part source .. dunno what shops you have in the states, Walmart etc and buy rust remover ( its this green slimey stuff, cleans off the surface rust and leaves just the clean metal)
i would recommend jacking up ur car, removing the tire and covering your brakes with a garbage bag or something
3. now after you clean the fender of dirt and what ever rust u can take off, sand it down, first with like 300 grit ish ish paper or rougher, depending on how u want to do it. keep at it until most all the rust is rubbed off the left over good metal ( im speaking from what i had to do, i dont know how bad your fenders are ) and then used fine sand paper to just smooth it out.
-rockguard is pretty much undercoating
4. use painters tape and tape around the outter part of the rear fender and then cover exposed car body with newspaper etc etc.. (rockguard is messsssy stuff)
5. go nuts and spray the rockguard top and bottom where the fender liner is supposed to be. (this stuff will take at least 45 to completely dry.) i coated it twice just to be safe.. and it dries a thin yet very strong layer, so dont worry about it looking all f**ked up.
6. once its all dried.. get new fender liners and just put them on. and the rockguard will protect the fender from what the fender liners cant ... its good stuff.
sorry about this write up.. im at work so its kinda crappy.. i'll try and take pics if you guys want.. but im sure its pretty straight forward.. the two rear fenders took me like 2 hours to finish... took my time .. just to be safe..
and if you do get this rockguard stuff (undercoating) overspray onto ur cars body, dont worry there is a product u can buy from duplicolor that removed it without harming your cars clear coat or paint.
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