Painting Questions......

Didn’t see a thread on Painting Questions. So guess add any painting discussions here.



I’ll start. So, purchased a new iron bumper. Plan on painting with Rustoleum Trim & Bumper cans before putting it on(lots of rain in Florida). Do i need to prime it first or just clean since it is a brand new bumper?

Also, plan on painting my fenders to match the bumper with same rustoleum as they are faded a bit. Do i need to prime or sand those before painting? No rust just faded so can i just clean and spray without a prime coat?

 

Do both I didn’t fully clean the rust off mine. And it’s peeling already. And welcome to the forum by the way. But next time I will be doing all the steps primer and multiple coats

 

Thanks for the welcome and the comment. Even with no rust i should prime then?

 

That’s what I would do just to be safe

 

Steel & Aluminum Bumpers need to be powder coated as this would be the best alternative to just rattle cans. The powder coaters will media blast the surface of the steel and then prime, Late add several coats of the color and even clear if you needed.

If the bumpers was a used gift and needs repainting, again powder coating would remove all the surface rust and old paint etc. But if you're looking to do this your self, then a good sanding, prime or the use of an adhesion promoter will help make sure that the paint sticks into areas you may have missed. Priming isn't meant just spray the paint onto the surface, its a method of spraying, then light sanding. etc.

Never remain in one spot for an extended length of time and the paint could run depending on the temp and humidity. Often one doesn't even need sand paper. Instead a scotchbrite is all thats needed to scuff the surface enough as to allow for the the promotion of the paint. Light, full length coats would be best, suspend the product in a garage etc as to create a total coverage environment.

The plastic fender flares or plastic components on the other hand, would be best to use a adhesion promoter with a plastic spray paint or simply replace the fender flares entirely. Alternatively, fender flare revitalization products can be used, but one may have to reapply these products after a couple of years. jeeps plastics have been know to fade and this is a shame.

 

Thanks for all the info.

For the bumper i purchased it brand new and it comes already powder coated. I’m just worried with how much it rains in Florida that i want to add some rust protection. Do i still need to prime it before using the rustoleum trim n bumper spray cans?

For the fenders i think I’ll prime then before painting those. I do plan on changing to fender flares but not for another year or so at least(wife would kill me if i spent more money on the Jeep now, lol). When i do them i want to do both the inner fender covers as well as the flares so would be dropping some $$$.

So for now just want to paint the faded fenders so they aren’t that mismatched with the new black bumper.

 

Just so everyone is aware that manufactures tend to do the least amount of powder coating on their products as to save or make money. Typically these bumpers (steels aluminum etc) have been cheaply light coated and this powder coating will rust or wear off over time even fade. Just be prepared for IF one repainted over the top of the powder coating, the powder coating can and will flake off. One would end up with a bigger mess.

Alternatively, a bed liner which is the same concept of the powder coating material would be a better solution to just painting over the surface of an already painted or powder coated surface.

Painting fender flares is not very desirable in our book and can lead to other issues. We have used Krylon's "Fusion" paint on plastic products, but again, it's not a very desirable finish. replace the part or products with a newer version.

 

For the bed liner do i need to prime or sand? Or can i just directly spray over then powder coated bumper?

I do know what you mean about the finish on the fender but think it will look better then if i leave the fenders almost grayish and the bumper black matte. Ideally i want to change the fenders to flares just won’t be able to right away.
So this would be a temporary fix until i can replace it next year.

 

My barricade front bumper rusted with in a year painted it (didn’t prime) like I should have and it rusted again quick so now to sand down and prime THEN paint befor jeeps on the beach this weekend

 

I think you'll be alright spraying the bedliner directly over the powder coat. Maybe a 220 grit light sanding just to scuff it up a bit will help but that shit sticks to everything. I sprayed it in my aluminum jon boat without sanding it and its held up extremely well over the past couple years.

 

Barricade bumpers look good when new but owners have reported rusting similar to yours so applying preemptive measures with primer or rust reformer before final coats makes sense.

 

@aggrex im not to good with making sense of things lol

 

That's ok...we're just sitting around discussing jeeps and rust on the internet campfire. And use a wire brush to knock off the loose scale otherwise its just cosmetic. Picked up a can of rust reformer today at HF to test/fix a rusty Honda Pilot as the reviews are mostly positive.

 

Ok, so any recommendation on a specific bedliner for a powder coated metal bumper or are they all the same?

 

IMO I would hold off on the bedliner treatment on that new powder coated bumper. Unless the new bumper is some R.O.C. imported steel of questionable quality I'd say run it as is for now. Rattle can the inner weld seams and crevices of the new bumper with some Rusteoleum might be enough preemptive action.

 

This is what I purchased from TAC

 

For fenders has anyone tried out a heat gun? Just saw a vid on YouTube where the guy used a heat gun and the faded fender looked brand new afterwards. Does this really work and I think it's just a temp fix(which is fine since I'll be hopefully changing my fenders next year). Anyone know how long it lasts after you use the heat gun to where it starts to fade again?

 

The heat gun trick reportedly works but depending on skill level the results could be spotty. Some have better results with Rusteoleum bed liner or Krylon Fusion satin.

 

Think I'm gonna try heat gun first and if doesn't work I'll do rustoleum to hold me over til I get my flares.

 

Sounds like a good plan. Painters tape or the equivalent on surrounding painted surfaces in case you get overzealous with the heat gun LOL