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Author Topic: Badly scratched chain guard. How can I buff out or restore?  (Read 3763 times)

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Offline toycollector10

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Badly scratched chain guard. How can I buff out or restore?
« on: March 07, 2009, 01:31:04 PM »
A plastic CB750 guard. Any tips? Thanks guys.
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1969  CB 750 K0
1973  CB175
1973  Z1 Kawasaki

Offline kevins750

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Re: Badly scratched chain guard. How can I buff out or restore?
« Reply #1 on: March 09, 2009, 11:13:05 PM »
Not sure, but something to look into...They used to sell plastic re-newing kits for motocross bikes...cleaner and a coating that you spread around and then buff..
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2003 YAMAHA ROADSTAR
1975 CB750F(build date 1/75 #313)
1978 CB750K
1973 CB750K(w/velorex sidecar)

Offline CoachDoc

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Re: Badly scratched chain guard. How can I buff out or restore?
« Reply #2 on: October 06, 2011, 01:34:04 PM »
I can tell you what not to do. I tried buffing it out with white polishing compound on a buffing wheel attached to my bench grinder-  the same technique I have used with great success to polish my aluminum parts. Came out nice and smoothe and shiny, but the heat generated seemed to produce a delayed reaction that bleached a lot of the black color out of the plastic in irregular blotches. I ended up going on E-bay and getting one off a parted out bike that is in decent shape.
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Offline Magpie

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Re: Badly scratched chain guard. How can I buff out or restore?
« Reply #3 on: October 06, 2011, 05:02:48 PM »
Any time I tried to buff out scratches in the plastic parts I seemed to make it worse. Back To Black by Mother's I think will make it look better though.
Cliff.
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Offline BobbyR

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Re: Badly scratched chain guard. How can I buff out or restore?
« Reply #4 on: October 06, 2011, 05:14:12 PM »
The question is how deep and bad are the scratches?
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Dedicated to Sgt. Howard Bruckner 1950 - 1969. KIA LONG KHANH.

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Offline FuZZie

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Re: Badly scratched chain guard. How can I buff out or restore?
« Reply #5 on: October 06, 2011, 05:21:04 PM »
Quote
Badly scratched chain guard. How can I buff out or restore?
« on: March 07, 2009, 03:31:04 pm »

Little late guys. :o
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Offline Magpie

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Re: Badly scratched chain guard. How can I buff out or restore?
« Reply #6 on: October 06, 2011, 05:22:14 PM »
HA! Never saw the posting date  :P Cliff.
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