Post-retr0bright UV protection agent

Hey all,
I'm about to make some retr0bright and apply it to a few old things, including an SNES, and was wondering if anybody has used this anti-UV acrylic spray afterward to try to protect the console from further yellowing. Any guidance would be much appreciated - thanks!

 

I used that in the past, works fine. Forget further yellowing, the real reason to use a sealant is because retrobrite wears off over time when exposed to air. Before you know it, it's back to looking like it was before!

 

In other words - it doesn't really work!

bilditup1 - your first post was caught by our auto-moderation system. You would have received a message once you posted stating that it will need approval. If your posts don't show up in future, don't keep reposting them until they do - wait and a moderator will get round to approving them. Thanks!

 

To get a more even job, use liquid hydrogen peroxide and submerge it, one ingredient same or better result..

Hot glue may work to hold the plastic under

 

Use just enough hydrogen peroxide to submerge the plastic or should I use more? What is the percentage of the hydrogen peroxide used? Most over the counter H2O2 in the USA is 3%. Would that be enough?

Could you post images of your results if you have any?

 

I was wondering what the heck happened there, because I wasn't paying attention to the post-post (heh) confirmation message. Then after reposting, I actually read the thing. Sorry about that - I'll be sharp to that in the future!

OK, thanks!

Really? This is the first I'm hearing of that option. What concentration of H₂O₂ were you using? Can you show some results?

 

It's really hard to get any sort of liquid chemicals here (mineral oil, hydrogen peroxide, nitro gliseran)

iirc there are some videos on YouTube of a guy who used 12% (or whatever is used for hair, people use it to evenly bleach hair extensions) you can use the food safe ,3% but it's a much slower reaction..

just enough to cover will suffice, use a clear pirex container and cover the top with plastic wrap..

hydrogen perixide breaks down when exposed to UV light, the more light, the faster the reaction..

If I had the money I would get some fuming Hydrogen Peroxide and see how that works (I have a chemist friend ) but it's like $80 a liter haha


the reason the plastic (in most cases) goes brown is the Bormine that is mixed into it as a fire retardant, when exposed to the right conditions, oxidieses and goes brown..


All we are doing is bleaching out that brown colour, in theory soaking the plastic rather than using a thick substance, should penitrate the plastic..

Sealing the the plastic again after bleaching, will prevent the Bormine from oxidizing again, also bleaching breaks down the plastic a little making it brittle, so clear coat should also make it less so..