Frame Paint/ Undercoating-BARE frame
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5th Wheeling
Joined: Nov 2013
Posts: 37
Likes: 0
Frame Paint/ Undercoating-BARE frame
I will be dealing with a bare metal frame soon and when the truck is finished, it'll be driven year round in Chicago. Yes they salt horribly. Truck would be washed frequently including rinsing the underneath to remove the salt. Currently I have POR-15 sprayed onto what was bare metal and it is"ok" its about a year old and is coming off in some places. My friend used eastwoods spray on undercoating and that is about a year old and not doing good at all...
Anyone have any good experience with a paint then undercoating system or just undercoating? Product and process.
Thanks guys!
Anyone have any good experience with a paint then undercoating system or just undercoating? Product and process.
Thanks guys!
Fleet Mechanic
Joined: Dec 2007
Posts: 1,514
Likes: 340
From: Wildwood Pa
PPG DX579, followed by DX520. Then Rustoleum Rusty metal primer, followed by Rustoleum gloss black. I apply it with a brush.
Next, before winter, slather the frame & brake lines with wheel bearing grease. Spray motor oil on the back & inside of all the body panels. Underside of the floor too. I use an undercoating gun. Its all messy, but it works.
Next, before winter, slather the frame & brake lines with wheel bearing grease. Spray motor oil on the back & inside of all the body panels. Underside of the floor too. I use an undercoating gun. Its all messy, but it works.
Senior User
Joined: Jul 2015
Posts: 426
Likes: 2
Just did my frame with POR15. Pics on my thread below.
https://www.ford-trucks.com/forums/1...th-pics-7.html
https://www.ford-trucks.com/forums/1...th-pics-7.html
More Turbo
Joined: Apr 2007
Posts: 656
Likes: 5
From: Salisbury, PA
I have used the POR 15 system in many ways and to really make it stick is using their prep system. The cleaner and then the "metal prep" solution. Then apply 2 coats of POR 15. Then some of their tie coat primer. Then 2-3 coats of a topcoat. I have tried applying it straight to sandblasted metal before without the metal prep and once it starts flaking it just peels right off.
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Cargo Master
Joined: May 2010
Posts: 3,365
Likes: 12
From: NW Indiana
I'm going to try cosmoline over paint next time. It doesn't last forever outside but it's doing a great job on my rotors that spent the summer outside under a tarp.
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Postmaster
Joined: Nov 2011
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If sand blasted to clean steel, epoxy primer followed by a good enamel is best. I like Rustoleum satin black personally. I believe the oily/greasy/waxy top coatings mentioned above really help also in the salt.
If the frame has basic cleaning (de-grease, wire wheel, needle peen) then a rust stop primer like red Rustoleum or Eastwood Rust Encapsulator works well.
I believe the oily/greasy/waxy coatings mentioned above really help also in the salt... especially in hidden areas.
If the frame has basic cleaning (de-grease, wire wheel, needle peen) then a rust stop primer like red Rustoleum or Eastwood Rust Encapsulator works well.
I believe the oily/greasy/waxy coatings mentioned above really help also in the salt... especially in hidden areas.
Freshman User
Joined: Nov 2015
Posts: 39
Likes: 0
If sand blasted to clean steel, epoxy primer followed by a good enamel is best. I like Rustoleum satin black personally. I believe the oily/greasy/waxy top coatings mentioned above really help also in the salt.
If the frame has basic cleaning (de-grease, wire wheel, needle peen) then a rust stop primer like red Rustoleum or Eastwood Rust Encapsulator works well.
I believe the oily/greasy/waxy coatings mentioned above really help also in the salt... especially in hidden areas.
If the frame has basic cleaning (de-grease, wire wheel, needle peen) then a rust stop primer like red Rustoleum or Eastwood Rust Encapsulator works well.
I believe the oily/greasy/waxy coatings mentioned above really help also in the salt... especially in hidden areas.
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