FREN

Garoo


26 jul. 2010

“How to restore the color of dingy old Lego bricks”

The plastics these [old computers] were made of is called ABS and to make it flame retardant (just in case it catches fire after a marathon session) the plastics manufacturers added chemicals that caused the plastic turn yellow or, even worse, brown over a long period of time.

Ooh, so that’s why. I always thought it was just natural for old plastic to do that.

A chance discovery was made in March 2008, by The CBM Museum at Wuppertal in Germany, that immersing parts in a solution of Hydrogen Peroxide for a few days could partially reverse the process.

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