Re: Leaf spring? Paint? Powdercoat?
[Re: sthemi]
#2236575
01/18/17 08:57 AM
01/18/17 08:57 AM
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Joined: Nov 2003
Posts: 597
robertop
mopar
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mopar
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Wet paint only. The powder coat process requires a bake at 280-320 deg for 45 minutes to set the paint. that could change your spring steel behavior. That temperature is too low to affect any steel; as an example high strength fasteners are routinely baked at 375 deg to eliminate hydrogen embrittlement after plating.
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2236598
01/18/17 11:29 AM
01/18/17 11:29 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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I wouldn't use heat cured powder coat without talking to a materials engineer first. 300 degrees is plenty warm enough to cause potential harm to the grain structure and temper of the steel if you do not control the conditions correctly.
**Photobucket sucks**
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2236610
01/18/17 11:54 AM
01/18/17 11:54 AM
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Joined: Jan 2003
Posts: 3,923 Richmond, Indiana
19swinger70
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master
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I spray-bomb mine. Easy to touch up if needed.
1970 340 swinger. sublime 1967 barracuda fastback BB 55 Plymouth Project
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2237044
01/19/17 12:38 AM
01/19/17 12:38 AM
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Joined: Jan 2016
Posts: 91 Alaska, USA
Jalaska907
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I powder coated mine, no problems and easy to clean. 300 degrees wont affect the metal. If it did, what would happen to an engine block? A turbo, Exhaust manifold? These are all cast parts, where as spring steel is a higher quality steel.
Justin Baldwin Kenai, AK
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2237054
01/19/17 12:50 AM
01/19/17 12:50 AM
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Joined: Jan 2016
Posts: 91 Alaska, USA
Jalaska907
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Lots of good info and questions/answers on this site: http://www.e-techpowdercoating.com/powder_coating_faqs.htm#WillheatdamageyoursubstratepartHere is one question and answer E-Tech Powder Coating provides Excellence in Powder Coating Powder Coating Faqs :: 34. Will heat damage your substrate (part)? No, the temperature used to cure the powder is less than 400 degrees. Titanium, steel, aluminum, magnesium are not affected by these temperatures. The temperature would have to be heated above 700 degrees to in order to affect most substrates.
Justin Baldwin Kenai, AK
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2237066
01/19/17 12:58 AM
01/19/17 12:58 AM
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Joined: Jan 2016
Posts: 91 Alaska, USA
Jalaska907
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Pictures of my rear suspension in 60% gloss black powder coat and the bell housing on the transmission is also powder coated, all rear suspension brackets are coated also, and trans cross member. I will be doing upper and lower control arms and k member in the next week or so
Tape off what you dont want coated, and the powder when done right is really tough.
Last edited by Jalaska907; 01/19/17 01:00 AM.
Justin Baldwin Kenai, AK
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2237090
01/19/17 01:30 AM
01/19/17 01:30 AM
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Joined: Jan 2016
Posts: 91 Alaska, USA
Jalaska907
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Yeah Cal-Tracs are coated, and all those factory powder coated wheels, Snap on tool boxes, kids toys, ect
Justin Baldwin Kenai, AK
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Re: Leaf spring? Paint? Powdercoat?
[Re: RSNOMO]
#2237092
01/19/17 01:33 AM
01/19/17 01:33 AM
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Joined: Jan 2016
Posts: 91 Alaska, USA
Jalaska907
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PC is very durable. Plus, if you want to touch up paint, you need to remove rust, prime, re paint. Powder coated wheels last a looong time without issues. Only time ive seen any issues was from improper application of the powder.
Also, you can get high heat PC, Clear coat PC for UV protection (some powders dont have UV in it)
Its all about prep
Justin Baldwin Kenai, AK
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Re: Leaf spring? Paint? Powdercoat?
[Re: Jalaska907]
#2237427
01/19/17 07:31 PM
01/19/17 07:31 PM
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Joined: Jan 2003
Posts: 2,636 Nashville, TN
MOPARMIKE69
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Not to high jack the thread ...but... I always understood that the spring assemblies were either all natural or fully assembled and dipped in black paint.
One of the things I always see on graveyard cars is they have black painted springs with natural clamps. That would also mean the inner liners would be natural not black.
I have disassembled spring assemblies and since they are 40 years old it is hard to see the paint, but they look like no paint in between the each spring leaf.
I have never powder coated springs because of the clamps.
69 Road Runner vert 69 GTX hard top 70 Road Runner 4 speed 70 Hemi Cuda vert
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Re: Leaf spring? Paint? Powdercoat?
[Re: MOPARMIKE69]
#2237562
01/19/17 11:04 PM
01/19/17 11:04 PM
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Joined: Jan 2016
Posts: 91 Alaska, USA
Jalaska907
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Alaska, USA
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Not to high jack the thread ...but... I always understood that the spring assemblies were either all natural or fully assembled and dipped in black paint.
One of the things I always see on graveyard cars is they have black painted springs with natural clamps. That would also mean the inner liners would be natural not black.
I have disassembled spring assemblies and since they are 40 years old it is hard to see the paint, but they look like no paint in between the each spring leaf.
I have never powder coated springs because of the clamps. You are correct on the proper restoration technique. I decided to rebuild my spring packs, and powder coat the individual springs then put a new natural clamp on them. If you wanted to do it more correct, you could always tape off what you dont want powder coated and assemble as you wish. Im a big fan of powder coating, since it is much more durable than paint. Yes, if you need to touch up from chips its not as convenient, but if I need to touch items up, I always choose to pull the part and re paint/ or powder coat the whole item due to any fading or corrosion.
Justin Baldwin Kenai, AK
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2237565
01/19/17 11:07 PM
01/19/17 11:07 PM
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Joined: Jan 2016
Posts: 91 Alaska, USA
Jalaska907
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Ill get some pictures of my rear suspension all assembled in the next couple days. It will show backing plate to backing plate that everything is assembled and powder coated.
Also on a side note, if you do choose to paint, you can paint over powder coat and the powder coat acts as a superior primer for paint. I have seen lots of people powder coat chassis then paint over them to help with corrosion protection.
Justin Baldwin Kenai, AK
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Re: Leaf spring? Paint? Powdercoat?
[Re: wkroncke17]
#2237806
01/20/17 12:27 PM
01/20/17 12:27 PM
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Joined: Sep 2003
Posts: 19,615 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
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Posts: 19,615
north of coder
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when disassembling a spring pack, first install a large C-clamp around the spring next to the center bolt. remove the center bolt, then unwind the C-clamp. failing to do that will get your attention when the springs take flight when the center bolt and nut come apart due to the tension of the leaves with each other. reassembly is the reverse, using the C-clamp to compress the leaves together, then install a new center bolt. most center bolts come extra long, so you will most likely have to cut off the extra thread length. when i do that, i then use a hammer to pein over the thread area above the nut, forming a somewhat of a rivet head appearance. this ensures the nut never loosens, and this procedure is barely visible when done as the nut hides in the center hole of the shock plate anyway. this sounds way more difficult than it is. just be careful and use good safety practices.
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