Quote:
Originally posted by huudo
Daggerlee is right. Not a joke! 
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may i ask what chemistry thing is working on this method? So far, I feel it was my room temperature which was not cool enough causing the sticker to turn yellow......
so what is the procedure?
1. let the sticker directly shined by the sun?
2. put a white a4 paper on the sticker and then shined by the sun?
3. put the sticker under a lamp? if does, how many watts light bulb? 20W/40W/60W?
please help, this can really solve my old sticker problem. :licker: