SOLVED: Is This Normal for Lower Control Arm?

[mesooohoppy]

POR-15 adheres best to surface rust (not flaking off). From their website: "POR-15 likes rusted surfaces best. Seasoned metal and sandblasted metal are also good. POR-15 does not adhere well to smooth, shiny surfaces, but will adhere well to those surfaces with the proper preparation."

im not doing rust prevention by covering up rust; even if its just surface rust. any painter knows that bare, clean metal creates the best foundation for adhesion.

that is interesting to know about POR15. id still recommend getting rid of all rust and then applying. even if its just surface rust. thanks for that info.

 

[4Runner4Leon]

POR-15 also adheres extremely well to bare skin and hair, spoken by someone who will be sporting these black spots at the Thanksgiving dinner table .

 

[4Runner4Leon]

im not doing rust prevention by covering up rust; even if its just surface rust. any painter knows that bare, clean metal creates the best foundation for adhesion.

that is interesting to know about POR15. id still recommend getting rid of all rust and then applying. even if its just surface rust. thanks for that info.

To be fair, many of the areas in the suspension and frame cannot be properly cleaned to bare metal without sandblasting, which was not in the cards for me. Scuffing the painted areas, and lightly wire brushing the rusty areas (which was mostly on the welds), was good enough for me. But I'm in CA, I might feel differently if this was a Minnesota or Pennsylvania truck.

 

[mesooohoppy]

thats how you know you got the good stuff.

kudos to ya'll for taking rust removal so seriously. even though it snows where i live, its not enough to warrant salt. generally speaking all of the cars here are very clean on their underside. i know a lot of people who would just chalk it up as an 'old toyota' and throw it away, but not ya'll!!

To be fair, many of the areas in the suspension and frame cannot be properly cleaned to bare metal without sandblasting, which was not in the cards for me. Scuffing the painted areas, and lightly wire brushing the rusty areas (which was mostly on the welds), was good enough for me. But I'm in CA, I might feel differently if this was a Minnesota or Pennsylvania truck.

yes, i agree. but my original comment was about the LCAs. which you can easily take off and strip/coat. obviously a frame is different. of course scuffing and cleaning is about all you can do in those very hard to reach areas. the big thing is you got the POR15 laid down and now it can do its job!

 

[Bad Luck]

im not doing rust prevention by covering up rust; even if its just surface rust. any painter knows that bare, clean metal creates the best foundation for adhesion.

that is interesting to know about POR15. id still recommend getting rid of all rust and then applying. even if its just surface rust. thanks for that info.

It seems counter-intuitive but that's just how POR-15 works. POR stands for Paint Over Rust and they formulated it just for that. "POR-15 works because it chemically bonds to rusted metal and forms a rock- hard, non-porous coating that won't crack, chip, or peel. It keeps moisture away from metal with a coating that is strengthened by continued exposure to moisture."