How to Restore Old Computers to Their Original Color

Caveats

There were two major problems we faced while using Retr0bright. The first one was the creation of white spots on the plastic part we were trying to restore. See Figure 7. We discovered that this was caused because we bought a peroxide solution that was too strong (40 Vol.); in our next Retr0bright batch we diluted the peroxide with water, and this problem was solved (instead of using 500 ml of peroxide we used 400 ml and added 100 ml of water). You will also see plastic parts getting white spots if you try to run too many Retr0bright sessions.

Figure 7: White spots caused by a Retr0bright solution that was too strong

The second major problem is regarding parts that are painted in other colors, such as logos. You should take extra care of them. If possible, protect them. Otherwise, the Retr0bright solution may discolor them. See what happened with the Apple logo from our keyboard in Figure 8.

Figure 8: Discolored logo