The common Mineral "Cerium oxide" in powder form not only is probably the best GLASS polishing compound when mixed in a concentrated mixture with water, it can be used for a quick hand polishing compound on scratched or mared plastic display panels.
Also on glass or plastic eye glasses or sun glasses or other optics
"Cerium oxide powder" is also used to polish rocks and many other things
I have used it to i.e., take off all scratches on my plastic reading glasses in only a few minutes hand polishing and a whole lot of other things
"YOU MAKE A simple CONCENTRATED WATER Liquid Slurry With the Fine Powder" !
Some places try to charge a lot of money per ounce or larger sizes for this "common Mineral" to unknowing people for what is basically a powder form of particular DIRT from the ground
buy it from the cheapest source you can find
i.e. eBay 1 oz. Polishing Cerium Oxide Price:
US $2.50
CRL 1 oz Polishing Cerium Oxide | eBay
This is FAR MORE then you will ever need for your iStick display panel
http://www.ebay.com/sch/i.html?_from=R40&ghostText=&_sacat=0&_nkw=Cerium+oxide&_sop=15
DON'T SAND IT
CALL OR GO TO A PLACE that sells or installs Glass, Automotive might be easiest to find this as example to source and see if they will give you a few pinches of the powder or the liquid premade they use
They use a rubbing compound or a motorized polishing compound I think it is alumina silica or something similar, but the best and fastest is "Cerium oxide"
its a white or grey or red or other color fine mineral powder you add a very small amount of compound and of water too so it becomes a concentrated liquid slurry mixture
But the best is "Cerium oxide"
Ask the guys in the shop to give you are sell you cheaply a very small amount like a few pinches or so; you don’t need very much at all!
you get a clean cloth like a cloth shop towel
take your finger and put it on the cloth and put it momentarily in water getting the cloth were your finger is wet
sprinkle a small pinch of the powder on the cloth where you just got it wet with your finger so now the cloth and water are slightly wet
you are making a concentrated powder and water slurry mixture on a cloth a little bigger than your finger
rub gently the plastic where the scratches are with your finger and slowly increase pressure as a backing to the cloth with the power and water mixture on the outside of the clothe where you touch it to the plastic
you may have to do this several times to get it perfect scratch free
after you rub it with the cloth water and powder slurry mixture
take your plastic part away from the cloth and rinse it with fresh water
with another cloth that is dry gently wipe dry your plastic piece and look at it carefully
you should see some of the scratch or mare removed each time you do this
Think of the Karate Kid Mr. Miyagi WAX ON WAX OFF WAX ON WAX OFF
https://www.youtube.com/watch?v=fULNUr0rvEc
FLUSH PLASTIC WITH WATER AND LOOK CAREFULLY
WAX ON WAX OFF WAX ON WAX OFF
excetera excetera excetera
each time you do this plastic layers will come off until you get it where you are happy with it
I have used this method to clean scratches and mares on plastic reading classes and sun glasses many times
Note: this goes faster than you think it will so don’t be in a hurry
Note using hard glass polishing compounds polish clear lens plastic very well and fairly fast by hand
sanding with sand paper adds scratches ouch
OH i FORGOT
YOU could use toothpaste but it’s very slow
better is car paint rubbing compound its faster than toothpaste but much slower then "Cerium oxide"
But the stuff they have at glass places is courser then tooth paste or rubbing compound
But still fine enough to not leave noticeable scratches
Just glad I have back ups
