hi guys im got some surface rust coming through , my plans were to sand it back , treat it with kurust or some other rust converter then spray white primer over it until ive got the money to have a proper job done , i was wondering would leaving it in primer be ok or would i have to put a top coat on ?
Tidying Some Rust Up
Started by
oliver122
, Feb 22 2012 08:46 PM
3 replies to this topic
#1
oliver122
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One Carb Or Two?
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Posted 22 February 2012 - 08:46 PM
#2
mini-luke
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Postman Pat
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Posted 22 February 2012 - 08:48 PM
Primer is porous, so you may as well not paint it if you just use primer. Where is the rust? You may end up with a hole instead when you try and sand it back.
#3
oliver122
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One Carb Or Two?
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Posted 22 February 2012 - 09:10 PM
its on the scuttle , and down the seems , i bumped my car and the paint split , i know its solid because i didn't have it sprayed long ago , what would the next step be after primer then ?
#4
AVV IT
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Posted 22 February 2012 - 10:13 PM
If your particular problem is just as a result of collision damage and there is no underlying corrosion behind the panel then you might get away with a surface repair like you suggest. Once you have removed the damaged paint, gotten back to bare metal and treated the corroded area, then etch primer is a good first port of call, as this actually chemically etches itself into the surface of the panel. then use a good zinc based primer over the top that will protect the metal further. You also need to assess whether or not you will need a skim of filler to level up the panel and compensate for all the layers of paint that have been lost. (Some people argue that filler should be applied directly to bare metal, but I prefer to protect the bare metal first then apply filler over the top).
Once the skim layer of filler has been sanded back with a sanding block, so that it is smooth and flush with surrounding panel, apply a coat of spray on primer to reveal any imperfections. Then fill those imperfections and sand back again, repeating the process until the surface is perfectly smooth. Then apply a final coat of spray on primer before trying to carefully blend in a few coats of top coat using a colour matched rattle can. What paint colour/code is your car though? If it is a White colour, then you might be in luck, as white is one of the easiest colours to match and blend as it isn't affected greatly by colour fade.
This is all based upon what I imagine your problem to be though, it may be best to post some pictures up of the damage, in order to get some more specific advice.
Once the skim layer of filler has been sanded back with a sanding block, so that it is smooth and flush with surrounding panel, apply a coat of spray on primer to reveal any imperfections. Then fill those imperfections and sand back again, repeating the process until the surface is perfectly smooth. Then apply a final coat of spray on primer before trying to carefully blend in a few coats of top coat using a colour matched rattle can. What paint colour/code is your car though? If it is a White colour, then you might be in luck, as white is one of the easiest colours to match and blend as it isn't affected greatly by colour fade.
This is all based upon what I imagine your problem to be though, it may be best to post some pictures up of the damage, in order to get some more specific advice.
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