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Cox Engine of The Month
September-2019
Levent Suberk's

CEF Magazine cover featuring the Ex Model Engines Harpy Eagle .049



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Post  DrCox on Wed May 08, 2019 1:04 am

Lightened several shades toward original color.

Wen Mac .049 Black 3 B/GS '57 Chevy with white interior.

Partially addresses this question:

https://www.coxengineforum.com/t12543-removing-fuel-stains-from-white-plastic-parts?highlight=white+plastic

Before:

De-Yellowing Plastic KlYRd5b

After:  

De-Yellowing Plastic CqbXDsV
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Post  crankbndr on Wed May 08, 2019 2:16 am

I had forgotten about this, what did you use? It looks good.
Here is a link to the process I mentioned in the other thread.

http://www.retrofixes.com/2013/10/how-to-clean-whiten-yellowed-plastics.html
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Post  DrCox on Thu May 16, 2019 12:37 am

crankbndr wrote:Here is a link to the process I mentioned in the other thread.

http://www.retrofixes.com/2013/10/how-to-clean-whiten-yellowed-plastics.html

Crankbndr, pretty much the same process. Just need lots of sunlight. So far the best results for lightening fuel soaked plastic. Haven't tried it on colored plastic...yet.

As an example, 8 hours of sunlight with 40 Volume Creme. Not 100% better, but one heck of a lot better. Hope this helps with others during their restoration process.

Fuel Soaked Before:

De-Yellowing Plastic DPxvivs

After: Pictures don't quite capture the difference

De-Yellowing Plastic JmCUCN7

Before:

De-Yellowing Plastic TnGbeAW

After:

De-Yellowing Plastic JnSDeE5
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