| Discussion Forum: Thread 292326 |
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| | | Author: | shannoc  | | Posted: | Jul 5, 2021 09:57 | | Subject: | Yellow bricks | | Viewed: | 147 times | | Topic: | General | |
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| Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
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| | | | | Author: | molten.brick | | Posted: | Jul 5, 2021 12:07 | | Subject: | Re: Yellowed bricks* | | Viewed: | 48 times | | Topic: | General | |
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| I'm not entirely sure - would peroxide only take off the glossy lustre from
the pieces?
I'd question the seller first?
In General, shannoc writes:
| | Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
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| | | | | Author: | iprice | | Posted: | Jul 5, 2021 12:22 | | Subject: | Re: Yellow bricks | | Viewed: | 36 times | | Topic: | General | |
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| In General, shannoc writes:
| | Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
|
I've heard both positive and negative feedback about Hydrogen Peroxide -
one of the Lego forums I visit on FaceBook raves about it, however DownUnderBricks
did a YouTube video about it; while the initial results were good, the end results
(after just a short time) were worse than then original yellowing.
Those that have used it on Facebook have never given an account about the after
effects long-term, so either they didn't have any, or they didn't want
to mention them. It was interesting though that a moderator of the FB forum actually
removed my post about the possible negative effects of HP, so maybe others were
removed/deleted too. How strange that a forum for Lego would deliberately remove
information about potentially damaging your Lego...
However, from what I've seen, heard and read, it takes more than an hour
or two in strong sunlight to get the best results.
At the end of the day, it's your choice. I plan to dio it myself at some
point in the future, but I'll be using an ultra-violet lamp (there are reports
that sunshine happens in the UK, but I'm doubtful myself!)
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| | | | | | | Author: | molten.brick | | Posted: | Jul 5, 2021 12:29 | | Subject: | Re: Yellow bricks | | Viewed: | 32 times | | Topic: | General | |
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| Lol. How about warm soapy water and a soft toothbrush to start with? Maybe add
some toothpaste if that doesn't work?
In General, iprice writes:
| | In General, shannoc writes:
| | Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
|
I've heard both positive and negative feedback about Hydrogen Peroxide -
one of the Lego forums I visit on FaceBook raves about it, however DownUnderBricks
did a YouTube video about it; while the initial results were good, the end results
(after just a short time) were worse than then original yellowing.
Those that have used it on Facebook have never given an account about the after
effects long-term, so either they didn't have any, or they didn't want
to mention them. It was interesting though that a moderator of the FB forum actually
removed my post about the possible negative effects of HP, so maybe others were
removed/deleted too. How strange that a forum for Lego would deliberately remove
information about potentially damaging your Lego...
However, from what I've seen, heard and read, it takes more than an hour
or two in strong sunlight to get the best results.
At the end of the day, it's your choice. I plan to dio it myself at some
point in the future, but I'll be using an ultra-violet lamp (there are reports
that sunshine happens in the UK, but I'm doubtful myself!)
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| | | | | Author: | Styphelus | | Posted: | Jul 5, 2021 12:38 | | Subject: | Re: Yellow bricks | | Viewed: | 38 times | | Topic: | General | |
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| In General, shannoc writes:
| | Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
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I've used 3% peroxide. It works but some parts will start yellowing again
after 6 months while others may take a couple of years. You just have to re-do
the process again. You also have to pay attention to the greys as they can get
lighter than they should. Keep checking on them every hour or so. However I would
contact the seller. I don't think it's acceptable to be selling yellowed
sets. They are permanently damaged. That's what I have done in the past.
Send pictures as well. Next time before purchasing ask about the condition and
yellowing. Best thing to do is to replace all the damaged parts.
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| | | | | Author: | brickbuzzard | | Posted: | Jul 5, 2021 13:01 | | Subject: | Re: Yellow bricks | | Viewed: | 54 times | | Topic: | General | |
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| In General, shannoc writes:
| | Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
|
After some trial and error, I have had success de-yellowing white and grey pieces.
First, wash the pieces thoroughly. I use a clear glass casserole dish or
bowl and fill it with 3% hydrogen peroxide. I put the pieces in and set it on
a LED ultraviolet light panel and cover the whole thing with aluminum foil.
This allows the light and mild heat from the light panel to reflect back into
the container. I let it "cook" for about 6 hours stirring about once an hour,
then wash the pieces again. I learned that removing the pieces sooner would
lead to re-yellowing of the pieces in a relatively short time. Some pieces still
have re-yellowing issues like animal horns and tail ends that have a softer feel
than a brick to start with.
Afterwards, keep your pieces out of sunlight and heat. This is the main cause
of the yellowing in the first place.
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| | | | | | | Author: | shannoc | | Posted: | Jul 5, 2021 14:12 | | Subject: | Re: Yellow bricks | | Viewed: | 50 times | | Topic: | General | |
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| In General, bbuzzard writes:
| | In General, shannoc writes:
| | Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
|
After some trial and error, I have had success de-yellowing white and grey pieces.
First, wash the pieces thoroughly. I use a clear glass casserole dish or
bowl and fill it with 3% hydrogen peroxide. I put the pieces in and set it on
a LED ultraviolet light panel and cover the whole thing with aluminum foil.
This allows the light and mild heat from the light panel to reflect back into
the container. I let it "cook" for about 6 hours stirring about once an hour,
then wash the pieces again. I learned that removing the pieces sooner would
lead to re-yellowing of the pieces in a relatively short time. Some pieces still
have re-yellowing issues like animal horns and tail ends that have a softer feel
than a brick to start with.
Afterwards, keep your pieces out of sunlight and heat. This is the main cause
of the yellowing in the first place.
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Thanks Bbuzzard.
Yeah I’m going to give this a shot then since pretty much every yellow and grey
piece is badly yellowed. I think I haven’t run into this because all the sets
I display I keen out of the sun and lit with led bulbs which won’t yellow them.
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| | | | | Author: | wendybrowne | | Posted: | Jul 7, 2021 06:57 | | Subject: | Re: Yellow bricks | | Viewed: | 34 times | | Topic: | General | |
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| hello,
is 3% hydrogen peroxide the same stuff that is sold at the drug store for regular
home use? There are some you tube videos out on this subject....
In General, shannoc writes:
| | Hello everyone I was just wondering what is the best way to clean bricks that
are really yellow? I just bought the Tower Bridge and a lot of the white and
light grey bricks are are really bad. I’ve heard the best way is to use 3% hydrogen
peroxide and let it set out in in the sun for an hour or so, but have also heard
not to do it because they can go back to yellow in a few weeks. This is the first
time I’ve had to deal with this so any advice would really be appreciated. Thank
you
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