using spray paint on metal...
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Elder User
Joined: Apr 2002
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From: utica n.y., u.s.a.
using spray paint on metal...
i got a brushguard for the truck but it is used and needed a paintjob
i cleaned it up real good took all the paint and 90% of the rustb off and then slapped a coat of primer on it let it dry over night and yesterday i put 2 coats of paint on it (regular krylon interior/exterior gloss black) and then let it sit over night...this morning i went to see how it came out and i am able to scrape the paint right off w/a finger nail so that tells me anything that even slightly scrapes against it will take a lot of paint with it ....
off to the store i went and so far today i have put another 2 coats on it without testing its durability... ill let it dry and later tonight ill test its durability IN the meantime how do these companies get the original paint to be so durable??? do they like bake it on or whatever
and/or how can i get my paintjob to stand up to light scrapes and such???
i cleaned it up real good took all the paint and 90% of the rustb off and then slapped a coat of primer on it let it dry over night and yesterday i put 2 coats of paint on it (regular krylon interior/exterior gloss black) and then let it sit over night...this morning i went to see how it came out and i am able to scrape the paint right off w/a finger nail so that tells me anything that even slightly scrapes against it will take a lot of paint with it ....
off to the store i went and so far today i have put another 2 coats on it without testing its durability... ill let it dry and later tonight ill test its durability IN the meantime how do these companies get the original paint to be so durable??? do they like bake it on or whatever
and/or how can i get my paintjob to stand up to light scrapes and such???
Admom
Joined: Feb 2001
Posts: 9,414
Likes: 201
From: Silver Springs
using spray paint on metal...
Taking only 90% of the rust off is your main problem. Did you treat the rust with any type of rust converter like Ospho or Jasco?
Painting "Clean" bare metal you'll need to use an Etching Primer before applying other primers or paint. Also, make sure the primers are compatible with the paint.
You may want to check into the POR-15, ZeroRust and Rustoleum products made specifically for painting over rust and for high durability since this is for a brushguard. Also, look around in the Bodywork Forum for other options.
Painting "Clean" bare metal you'll need to use an Etching Primer before applying other primers or paint. Also, make sure the primers are compatible with the paint.
You may want to check into the POR-15, ZeroRust and Rustoleum products made specifically for painting over rust and for high durability since this is for a brushguard. Also, look around in the Bodywork Forum for other options.
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From: utica n.y., u.s.a.
using spray paint on metal...
hey carlene,thanks for the reply,
it is not that i didnt want to get all the rust off ,but i didnt have the adequate tools to get into this nook and that cranny..it was originally supposed to be grinded down ,dipped in some stuff that eats away rust and then painted by a friend who has all body shop quality tools in his home garage but he had it sitting in a corner for a year and did none of the above ,thats why i ended up doing it myself.
as far as the paint coming off "too easy"
all it needed was some time to harden up and i also bought some rustoleum clearcoat and put a coat of that on it
ill have pics once i pry my bros dig cam from his hands...
it is not that i didnt want to get all the rust off ,but i didnt have the adequate tools to get into this nook and that cranny..it was originally supposed to be grinded down ,dipped in some stuff that eats away rust and then painted by a friend who has all body shop quality tools in his home garage but he had it sitting in a corner for a year and did none of the above ,thats why i ended up doing it myself.
as far as the paint coming off "too easy"
all it needed was some time to harden up and i also bought some rustoleum clearcoat and put a coat of that on it
ill have pics once i pry my bros dig cam from his hands...
New User
Joined: Aug 2003
Posts: 4
Likes: 0
From: Boone County
using spray paint on metal...
Well , I've had a little experience with these types of things , and to be honest there's no really sure fire way to keep paint from scratchin off w/out putting a professional finish on it. However , in the search for a good rustproofing spray on coating for a '69 camaro that I'm restoring , I've found a fairly good rustproofer that looks good too (depending on what type you get , ie gloss black or flat black). The gloss black seems to look the best. Of course you do have to have a sprayer to apply it , but personally a sprayer is the best for any application. It's called POR15 http://www.prp-porshop.com/ and it chemisally bonds to rust and bare metal to form a protective coating that withstands abbrasions and scuffs very well. However , a clear coat always makes exterior asthetics stand out much more. So I would reccomend both. Hope that helps.
Post Fiend
Joined: Nov 2002
Posts: 9,987
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From: Memphis, TN
using spray paint on metal...
Skip the whole paint idea, sandblast it, and have it powdercoated. 
I had a bunch of stuff done at an industrial shop here for less than I would have spent on spray paint, not even counting the time it would have taken to apply it.
I had a bunch of stuff done at an industrial shop here for less than I would have spent on spray paint, not even counting the time it would have taken to apply it.
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