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SpecialistMichael
SpecialistMichael, MS, CSCS
Category: General
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Experience:  Senior Information Specialist
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Can an Automotive Clear coat be applied directly to raw bare

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Can an Automotive Clear coat be applied directly to raw bare cold rolled steel and protect it from rust and the elements...? and if so, for how long..?

FitnessSpecialist :

Hi my name is XXXXX XXXXX you available?

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Can you see our conversation?

Customer:

yes I can

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My name isXXXXX operate a restorative detailing business and have worked closely with automotive body repair technicians

FitnessSpecialist :

what sort of applications are you considering with your rolled steel?

Customer:

I am an Artist that uses the cold rolled sheet metal to create sculptures, I then heat it to bring out the colors in the steel. So I am looking to protect it with a clear Auto coat. Is this possible?

FitnessSpecialist :

Thats beautiful

FitnessSpecialist :

and yes it is possible, but I just want to make sure you have a reasonable understanding

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in modern rat rodding, people will actually use automotive clears over original partially rusted bodies to preserve the look

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its important to realize that automotive clearcoats are actually 2 parts(the coating, and the hardener)

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so you may be forced to brush it on, which should be fine

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now

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polyeurethane(in place of that 2 part mix that you would use strictly for painting cars through a pressurized gun)

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is commonly used

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The biggest issue when doing this(which is also the rule for cars) is having a surface for the coating to grab on to

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which will give you that solid durability

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the rust actually provides that

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so once you do your oxidation and rust process

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and stop it(with baking soda or whatever you use)

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then you would basically have the equivalent of a "scuffed" or "sanded" surface

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(similar to the automotive industry where they sand or "brillo" scuff a surface prior to painting

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does this make sense so far?

Customer:

Yes it does....I do grind/sand the steel with a grinder...will this be sufficient...?

FitnessSpecialist :

well i just wanted to use that example because paints and coatings have the best longevity when they have something to "grab"

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in your case, grinding would remove your rusting

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sorry

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i mean heating

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so when you heat to bring the colors, obviously its the top layers I presume that are burnished into color right?

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you still with me?

Customer:

I do grind the bare metal first then heat/burnish it, and the color is the top layers, I nothing else but clean the metal after the heating..

FitnessSpecialist :

oh ok

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well in that case the textured surface would allow it to stick

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i was going to say that you wouldnt want to grind off your heating treatment

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but youre not :)

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so in your case you can apply automotive clearcoat

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youre going to have to do thin coats

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Polyurethane(also a former automotive coating) would be great for this too

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this could be brushed on(for a little more texture) but also sprayed on..though you would need the appropriate tools for spraying

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problem is automotive coatings are transitioning to waterbased spray only clear

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coming from solvent based

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which could be brushed on easier

Customer:

Great....thank you for the information..

FitnessSpecialist :

heres what you can do

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visit a couple of body shops, see if they can sample you some of the clear coat they use.. maybe for a couple of bucks if they are insisting on getting something for it

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each shop will be using something different, i can almost guarantee that

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you could source your own urethane

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and experiment with application to get the look you like

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also though

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getting the smaller samples from the shops would allow you to listen to what they suggest as far as application, because they will have been working with the coating itself

Customer:

Sounds good, I will do this....thanks again

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you are very welcome - please remember to rate :)

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just hit reply back if you want to discuss further

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