LEGO Whitening

Origional: 2014-10-26 Updated: 2019-11-06 My biggest complaint about LEGOs in terms of quality was that older pieces, especially white ones, would yellow over time, especially in direct sunlight. The yellowing is due to a chemical process, which can be reversed using hydrogen peroxide (H2O2)and Oxy-clean.
October 26, 2014
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