Fred,

I would think that this bottle of Concentrated Green Cleaner made from Orange Peels would do the trick. It is a product of your own state. It has made things Super White for me.

Mel

Retro.bright does not work well , I used 40 volume hair developer with whitener also hair salon product. Have patience , set parts outside in the sun and mix new wet solution every.hour the first day. Let sit overnight , the wash parts to remove all the resedue from the night before. Then in the sun start applying the hair.bleach.mixture every hour agian and let sit in Sun. By the third day wash.the bot and it should be done. If not done yet repeat.process agian. It's in my omnibot 2000 / rad 2.0 vacuum.thread. here's before and after results.....

does it remove other paint,might look to try both ideas,did see your on your thread

retrobright idea i am using is tezza's recipe,there are a few recipes 1/2 pint (200 ml) Hydrogen Peroxide, 6% strength (available from most Pharmacies as a hair bleach or antiseptic) 2 heaped tablespoonfuls of "White Crest" Arrowroot 1/5 teaspoonful of "Oxi-Magic" laundry booster (to be added to the gel just before use, like the original recipe)

do need to remove any decals,but main question is does your remove the other paint

No if you notice all my factory paint and decals are maintained. Omnibot 200p is painted on and not disturbed. Basically the 6% isn't enough to whiten, it will only clean off loose grime. 40 volume developer is 15% peroxide and it takes several applications and a couple days . 6% would take much.much longer. I tried retro bright for a week with no noticable results.

Some paint and decals are effected by bleaching and most are not. You need to do a test spot somewhere and see. J.W.

@jstarne , witch recipe did you try look at the photos on the site of the commodore 64 it looks like decals didnt touch ,but the plastic is white

i know on your site photos look good too

Then we took the idea to other forums, where the idea received a sceptical response at first. Lorne (from Arizona) and Tezza (from New Zealand), from the Vintage Computer Forums (http://www.vintage-computer.com) really took on the idea, worked with us and helped us perfect the process between VCF and EAB. We have now proved on several forums that plastics yellowing can be completely reversed in hours without damage using our mixture."

here is info on hair bleach products . Use of Hair Bleach products on dark coloured parts.

Lorne found a hair bleach product that originally looked promising on beige parts, however, when this was tried on dark blue coloured parts that had turned almost black, it was noticed that the surface had changed as shown below.

The best guess as to the chemical in the hair bleach that caused this is called Terpene; this has chemically etched and denatured the surface slightly. If you wish to try a hair bleach product, please stay away from any that appear to contain solvents or chemicals such as terpenes.

I used the recipe you.posted up , I realized for.bad.yellowing.its not.efficient. I.talked to local restoration professionals and they said using 40 volume developer works best. For areas you want to remove the yellowing on a dark.color.then just don't mix whitening powder in. On so it.will.restore the.original.plastic color. Using 40 volume.developer none.of.my bots.surfaces has become.pitted or otherwise ruined.

ok thank for info,i guess the best way it try both ways will go out this week to get all supplies and try both and most my results what is the name the 40 volume developer you used cant say if your will work or not or Tezza recipe will work or not till i try them both

did a search at sally beauty supply and they have many brands

can pick up at sally beauty 1 mile from my house @jstarne let me know the names of the developer and whitener some stuff like arrowroot can get at publix and walgreens near my place