Author Topic: Is there any problem with Powder Coating shock springs?  (Read 5544 times)

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Offline Kong

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Is there any problem with Powder Coating shock springs?
« on: November 23, 2010, 07:02:21 AM »
I'm building the bike to a color theme, and I'd like to keep many of the suspension parts the same color as the frame, which are the parts which will be power coated.  I am concerned that the heating to melt the powder may effect spring performance, I am also concerned about the longevity of the coating on a part that is constantly flexing.  Anyone knowledgable on the use of power coating on possibly heat sensitive parts, particularly springs in this case but overall heat sensitive parts too.
2002 FXSTD/I  Softail Deuce
2001 Acura (Honda) CL Type-S
1986 Honda Rebel, 450
1978 Honda CB550K
1977 Honda CB550K

Offline Gordon

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Re: Is there any problem with Powder Coating shock springs?
« Reply #1 on: November 23, 2010, 07:09:08 AM »
If you can find the right color you could do a rubberized coating that you can get at the hardware store that's made for coating tool handles.  They sell it in the dipping can and in spray can form. 

KingCustomCycles.com

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Re: Is there any problem with Powder Coating shock springs?
« Reply #2 on: November 23, 2010, 07:21:38 AM »
Powder coat is more flexible than paint or chrome.  As far as the heating changing the spring characteristics, it takes much more than 350 F to do that.  Depending on the steel alloy it is more like 1600 degrees.  I can consult some engineering data if need be but the heat margin is very wide between what it takes to cure the powder and what it takes to "soften" the steel. 

fly944

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Re: Is there any problem with Powder Coating shock springs?
« Reply #3 on: November 23, 2010, 08:02:58 AM »
Interested in doing the same. How do you disassemble rear shocks?

Offline MRieck

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Re: Is there any problem with Powder Coating shock springs?
« Reply #4 on: November 23, 2010, 08:16:46 AM »
I have had springs powdercoated over the years....no problems at all.
Owner of the "Million Dollar CB"

Offline Kong

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Re: Is there any problem with Powder Coating shock springs?
« Reply #5 on: November 23, 2010, 12:23:15 PM »
Thank you all for your responses.  KingCustom, I appreciate the offer to look up the information but apparently my concerns were unwarranted - good!

Fly, although I haven't bought my shocks yet with most stock style shocks there are retainers at the top that work similar to engine valve retainers; so you compress the spring, remove the retainers, then the "top-hat" over the spring can be removed along with the spring.  As with all strong springs be very very careful when you compress them.  Strong springs can be extremely dangerous.
2002 FXSTD/I  Softail Deuce
2001 Acura (Honda) CL Type-S
1986 Honda Rebel, 450
1978 Honda CB550K
1977 Honda CB550K

Offline jtb

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Re: Is there any problem with Powder Coating shock springs?
« Reply #6 on: November 23, 2010, 02:53:33 PM »
Powder coated mine 5 years ago.  been great.
1977 CB750F
1985 V65 Sabre
1986 VFR 750 (gone but missed greatly)