Yellow A4000 front

[Hyperspeed]

My A1200 desktop has stayed vanilla white for 12yrs now and hasn't yellowed anywhere. The key transfers don't like ionic surfactant like Cif or Flash so don't use kitchen detergents or anything.

I found Simple shower gel, warm water and an electric toothbrush are a great combination.

Anything with smoke yellowing can be left to soak and with a rough dish pad can be scrubbed up to white.

Chemical yellowing from heat, age or sunlight won't budge. Scratching off the surface probably isn't a good idea.

I've seen some injection moulded plastics sweatting. Like an old Epson Stylus printer, the plastic under the hood had a leaf-like pattern of haze on it that could be wiped off - as if it comes out of the plastic. Scientists have also suggested that plastic food packaging might leak chemicals into food (some that mimic oestrogen hormones). In fact, there was a scare about 10yrs ago with 'cling-film' for wrapping sandwiches in!

I have an old yellowy case and I just bought a matt-cream spray from a hardware store.

[Hyperspeed]

It's a nightmare getting matching beige peripherals these days too... everything is silver, black or brilliant white!

If you intend spraying stuff and want to do some intricate masking to avoid spraying over things like key transfers then I reccommend masking paint. You dab it on like PVA glue and use a hairdryer to set it, then when you've done your spraying it peels off like latex.

For straight lines there's the basic, low-tack masking tape available in most art shops.

A touchup I performed lately using silver enamel was to paint the edges of my A1200's LEDs so that the light doesn't leak into the surrounding LEDs and case. What I mean is that the bright green POWER LED doesn't cause a slight glow to emant from the F.DISK LED (the lights are square and not insulated). Makes things look crisper, especially if you are using the lights to display CPU use via Executive, are keeping an eye on the audio filter or are just paranoid about a guru!

:-D

[Hyperspeed]

That sounds like leirbag28, he has a rather swish A600 and CD32.

I'm just wondering if it's an airborne pollutant that changes the colour of plastic, maybe carbon dioxide?

Strange that a Dreamcast was mentioned as going yellow as surely by 1999 all plastics would have had LV mixed in to protect against yellowing.

It's possible that contact with others plastics could trigger a yellowing. I know when I bought a second hand A1200 it came with a PVC/Vinyl dustcover and that seemed to have yellowed the case!

[Hyperspeed]

Wonder if you could order an euro-symbol sticker and use the official Amiga patch, then someone utilise one of the blank keys on a UK keyboard for the euro symbol.