Has anyone seen this!!! (whitening yellowed plastics)

[Kyle]

Looks AMAZING.

[liegeprime]

That is an amazing improvement Kup!.... Ive set my Shockwave - Actionmaster in the jar for today and will leave him overnight to soak a bit more, I've also placed inside Abominus's head as it needed a bit of freshening up. Taken it out already and its quite an improvement! I will need a bigger jar though for my next project is Hungurr... after this Im done hehehe. This is a most useful thread. Very pleased with the results.

[kup]

I think this thing is revolutionary.

I no longer have the fear of god in me when it comes to toys becoming yellow as there is a way to reverse it!

The awesome thing is that it doesn't appear to affect stickers at all! Dogfight's stickers are in the same condition as before!

Now I am trying a junker Galvatron that had its whole back yellowed. Before I saw him as something to keep just for parts but now there is a possibility to fully restore him.

This is fantastic!

[heroic_decepticon]

liege, Kup, those are fantastic results.

I'll be trying this out over christmas, hopefully.

[i_amtrunks]

Those are some great results, such a simple solution for fixing up older discoloured toys.

If I wasn't repainting Silverbolt, I'd give him a "bath", he was yellow as Sunstreaker!

[kup]

Great success with Galvatron and it only took one day to do a part wich had considerably yellowed.

It seems that lighter colors de-yellow much quicker than darker colored ones such as Dogfight's blue.

[kup]

Dogfight is finally out of the CR Tank and back to an almost minty blue!

All that is needed for a full minty look are new reprolabels as his stickers are looking dodgy to begin with but the Hydrogen Paroxide did not affect them at all despite being submerged for days.

Before:

After:



Before:

After:

[Golden Phoenix]

Dogfight is finally out of the CR Tank and back to an almost minty blue!

All that is needed for a full minty look are new reprolabels as his stickers are looking dodgy to begin with but the Hydrogen Paroxide did not affect them at all despite being submerged for days.

Before:

After:



Before:

After:

Wow.
It's a miracle fix.
Let just hope it doesn't end up like soylent green

[jgon2098]

Absolutely magnificent.

Questions:

- The screws on dogfight? Were they 'de-rerusted' by the chemical? or were they new screws from a junker.

- Is the reaction more efficient in an air-tight environment. i.e. closed-lid jar or open-lid jar.

- Recyclibility of the chemical?

[kup]

Absolutely magnificent.

Questions:

- The screws on dogfight? Were they 'de-rerusted' by the chemical? or were they new screws from a junker.

- Is the reaction more efficient in an air-tight environment. i.e. closed-lid jar or open-lid jar.

- Recyclibility of the chemical?

Answers:

- The screws do indeed clean a bit but its hardly perfect, they still look worn and discolored so I had to sand the rust off and paint them silver. I have not seen any negative reaction in practice but theoretically, the Hydrogen Peroxide is very corrosive to metal.

- I have not tested this however the biggest factor to how quickly something de-yellows appears to be direct sunlight. The longer its in the Jar with Sunlight the quicker it de-yellows but I am not sure if maintaining an open jar will make any difference. Keep in mind that the liquid does heat up a bit due to the sun and evaporates and condenses within the jar. Having a closed lid would be best to maintain the volume of liquid for future reuse and avoid possible toxic vapor.

- I have used the same liquid for all of Dogfight's parts. At first I started out with putting them all at once but that had limited impact because some parts shaded others from the sun as well as the Peroxide sold locally being a much lesser concentration than what the Americans can get (Thanks to The_Damned for the tip ). Due to this, I did a couple of parts at a time for a day or two each (depending on avaliable sunlight). I have been using the same liquid this whole time and its equally effective despite several reuses. I have now moved on to fixing yellowed Galvatron parts using the same liquid with great success despite several reuses over more than a week.