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10-27-2014, 01:02 PM | #1 |
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Frame painting advice ... Bare metal???
Hi Guys,
How close to bare metal does a frame need to be to avoid recurring rust issues? I am looking for general advice. This car is going to be a driver, so perfection is not necessary. However I am balancing that with my son's desire (and initiative) to get his frame painted. Product advice? Lets say we want "very little visible rust in 10 years". Is POR 15 the way to go? I would be nervous trying to so that in my driveway. Take a look at the pictures and let me know! Thanks, Barry |
10-27-2014, 02:15 PM | #2 |
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Re: Frame painting advice ... Bare metal???
im sure other board members will know more and have a better answer for you but when i did my '72 nova i just powerwashed it really good and hand sanded a few rougher spots and then applied that por15 paint on.it said that a little rust on the surface helps the paint to stick and it will smooth out great. i did the entire chasis on my nova with no issues in a few hours in my driveway
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10-27-2014, 02:34 PM | #3 | |
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Re: Frame painting advice ... Bare metal???
Quote:
I've looked a the POR 15 website and I see a three-part procedure with a degreaser, followed by some kind of acid, then finishing with the paint. Looks like I need to do some more research! Barry |
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10-27-2014, 02:47 PM | #4 | |
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Re: Frame painting advice ... Bare metal???
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10-27-2014, 02:58 PM | #5 | |
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Re: Frame painting advice ... Bare metal???
Quote:
Thanks Fitz! I see that Eastwood product comes in an aerosol too ... looks like I can spray it into hard-to-reach areas if needed. When you say, "then apply POR 15", are you skipping the degreaser and the metal prep parts? Sorry ... I am new to this and want to make sure I get this right. Barry |
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10-27-2014, 03:29 PM | #6 |
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Re: Frame painting advice ... Bare metal???
If you going so far as to do a frame off, I would HIGHLY recommend that you sandblast the frame clean. Anytime you paint over rust, it is still there, waiting to reappear.
Spend a little extra $ now, and you will be glad you did, in the long run.
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10-27-2014, 03:35 PM | #7 |
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Re: Frame painting advice ... Bare metal???
In all honestly, if you are going to do a frame off, pay someone the $100-$150 to blast the frame. I began wire wheeling the front it and spent $50 on supplies alone. Then I wised up and will be paying someone to blast it later this week actually.
Also, I went with MasterSeries paint for the frame. Just let me know if you have any other questions. Good luck!
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10-27-2014, 04:45 PM | #8 | |
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Re: Frame painting advice ... Bare metal???
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10-27-2014, 05:17 PM | #9 |
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Re: Frame painting advice ... Bare metal???
That metal in the picture is almost too clean for POR15. I've used POR without all that clean up prep with great success. Other will bash POR15 relentlessly.
Rust converters are just weak acids. The same thing can be done with vinegar, CLR, Ospho etc.....
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10-27-2014, 05:42 PM | #10 | |
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Re: Frame painting advice ... Bare metal???
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Thank you for this perspective. |
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10-27-2014, 05:46 PM | #11 | |
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Re: Frame painting advice ... Bare metal???
Quote:
I was under the impression that blasting would be much more than that. I saw $100-$150 and immediately made a couple phone calls. $110 an hour (the one place that has gotten back to me) and the estimate was about an hour and a half. Food for thought! Barry |
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10-27-2014, 05:49 PM | #12 |
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Re: Frame painting advice ... Bare metal???
x2
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10-27-2014, 10:45 PM | #13 | |
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Re: Frame painting advice ... Bare metal???
Quote:
Nope. Do the degreaser first, do the metal prep, apply the rust converter in the hard to get places then brush or spray the POR 15. |
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10-28-2014, 08:53 AM | #14 |
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Re: Frame painting advice ... Bare metal???
I read that red oxide paint works well. I'm using some on my chassis right now, but the stuff is taking FOREVER to cure. Time will tell whether it holds up...
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10-28-2014, 02:53 PM | #15 |
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Re: Frame painting advice ... Bare metal???
Thanks all!
Summary of what I've learned: 1) Sand blasting is not that expensive relative to abrasive pads/wire brushes/time. 2) You can remove too much rust for rust converters to work (or be necessary) Here's the remaining question: 3) Is there a middle ground that should be avoided where *most* of the surface rust is removed (but not completely)? In other words, would it be detrimental to use a rust converter "just to be safe" or "on the hard to reach areas", or does that create a situation where the POR15 (or other coating) will not stick? Barry |
10-28-2014, 02:56 PM | #16 |
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Re: Frame painting advice ... Bare metal???
Did you ever hear of a product called Rust Bullet? This stuff is as hard as nails and resists rust returning. I have a friend that did his frame on his truck, after they shortened it and now they are using the truck as a mud bogger. This stuff stood up to all of the dragging and banging that was in the shop as they built the truck and it still is standing up to water and abuse.
http://www.rustbullet.com/?source=ad...FZaCaQodvHcAMQ
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10-28-2014, 04:43 PM | #17 |
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Re: Frame painting advice ... Bare metal???
In my area you can have a frame sand blasted & Power Coated for under $200.00 !
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10-28-2014, 04:46 PM | #18 | |
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Re: Frame painting advice ... Bare metal???
Quote:
I got a couple quotes on sandblasting: $110/hour with an estimate of 1 1/2 hours. Another was "around $100". The powder coating was another couple hundred on top of that. I am afraid of "scope creep", however. Barry |
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10-28-2014, 04:48 PM | #19 | |
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Re: Frame painting advice ... Bare metal???
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Barry |
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10-28-2014, 05:01 PM | #20 | |
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Re: Frame painting advice ... Bare metal???
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X2 to what they said I took my truck totally down to frame and had it blasted. Cost me $160. Well worth it. I have since found a place that would blast and powder coat for $300 in Dallas. I used POR15. Seems to work pretty well. It's pricy. Haven't had it on the road yet. POR is very thin. A little goes a long way. I have little Air Bubbles in places. Please do yourself a favor and put down some plastic sheeting or tarps. It doesn't come off!!! It will also stick to your skin for days! Wear gloves and all the PPE. I bumped my elbow and it was black for a week. Make sure you follow the instructions to a Tee if you go this route. If I could do it all over again. Now that I have a reliable coating place, I would have had it powdered.
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10-28-2014, 07:34 PM | #21 |
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Re: Frame painting advice ... Bare metal???
Read up on Hammerite !
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10-28-2014, 07:56 PM | #22 |
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Re: Frame painting advice ... Bare metal???
I've got some Chasis Saver that I plan to use on the frame. As much as I would love to sandblast the entire frame and powder coat I have a few reservations:
I don't want nor really have the time/space to tear the entire frame down My mind changes with the wind and don't want to mess up the pretty powder coat job if I decide to add a drop member, switch to coilovers or convert to 4x4. I'm kind of looking forward to making the frame nice myself.
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