| Discussion Forum: Thread 273514 |
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| | | Author: | robwaysch  | | Posted: | Aug 19, 2020 22:33 | | Subject: | Opinion on vintage light gray brick color | | Viewed: | 124 times | | Topic: | Colors | | Status: | Open | |
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| I'm relatively new to selling on brick link and even less experienced with
vintage sets. I acquired a fairly complete 1984 Knight's Castle set 6073.
I was missing several light gray bricks and I purchased some on brick link. I
know that there can be variation in color between different production runs and
from year to year. Then you have the time factor, sun fading, etc. I took several
pictures of my light gray bricks and I placed a new light bluish gray brick on
top that I took from a recent star wars set. My question to the group is. Are
all these bricks light gray? Should I even bother trying to sell a set with this
kind of color variation? How much of a detraction is this from the sets value?
Thanks.
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| | | | | Author: | JLRSextra | | Posted: | Aug 20, 2020 01:12 | | Subject: | Re: Opinion on vintage light gray brick color | | Viewed: | 44 times | | Topic: | Colors | |
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| These are problematic. They are badly discolored. I've gotten complaints
from buyers for sending discolored bricks, so I don't. They might be a loss.
I've tried Hydrogen Peroxide 50% with water 50% and sunlight. Sometimes that
works, but sometimes you get what are called white blooms. An uneven lightening
of the plastic that makes it equally discolored. H2O2 works well on white and
trans-clear but it is very hit and miss on old gray. Ensuring the bricks remain
fully submerged 100% of the time seems to help avoid white blooms.
I've recently heard of this new method called RetrOBright (google it), but
I've not tried it.
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| | | | | | | Author: | taxan | | Posted: | Aug 20, 2020 07:42 | | Subject: | Re: Opinion on vintage light gray brick color | | Viewed: | 48 times | | Topic: | Colors | |
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| In Colors, JLRSextra writes:
| | These are problematic. They are badly discolored. I've gotten complaints
from buyers for sending discolored bricks, so I don't. They might be a loss.
I've tried Hydrogen Peroxide 50% with water 50% and sunlight. Sometimes that
works, but sometimes you get what are called white blooms. An uneven lightening
of the plastic that makes it equally discolored. H2O2 works well on white and
trans-clear but it is very hit and miss on old gray. Ensuring the bricks remain
fully submerged 100% of the time seems to help avoid white blooms.
I've recently heard of this new method called RetrOBright (google it), but
I've not tried it.
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50%is way to strong solution.
10-15% is a better strenght and you don't get that many "blooms". You still
have to watch it when you do the sun part.
Hydrogen Peroxide with some (2-3) other chemical is RetrOBright. Those other
chemicals is for speeding up the process and make it in to a gel substance that
is mean to be use on much bigger parts than LEGO.
RetrOBright (Hydrogen Peroxide) is known to work at a 3-6% solution. It just
take longer before is done.
And a note about Hydrogen Peroxide. It will replace the Brom that was use as
a fire damping solution by LEGO for some time.
But it will only replace the Brom molecule in the top layer on the part and the
Brom molecule will continue to travel back to the top, and after some time and
you have to repeat the process again.
Some link to information about Retr0bright
https://en.wikipedia.org/wiki/Retr0bright
https://www.retr0bright.com/
Have a nice day.
taxan
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| | | | | Author: | hpoort | | Posted: | Aug 20, 2020 02:19 | | Subject: | Re: Opinion on vintage light gray brick color | | Viewed: | 61 times | | Topic: | Colors | |
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| In Colors, robwaysch writes:
| | I'm relatively new to selling on brick link and even less experienced with
vintage sets. I acquired a fairly complete 1984 Knight's Castle set 6073.
I was missing several light gray bricks and I purchased some on brick link. I
know that there can be variation in color between different production runs and
from year to year. Then you have the time factor, sun fading, etc. I took several
pictures of my light gray bricks and I placed a new light bluish gray brick on
top that I took from a recent star wars set. My question to the group is. Are
all these bricks light gray? Should I even bother trying to sell a set with this
kind of color variation? How much of a detraction is this from the sets value?
Thanks.
|
You are right in comparing with the known Light Bluish Gray 1x3 Brick. What you
have seems to be a mix of Light Bluish Gray and Light Gray. If this was supposed
to be all classic Light Gray, you did not get what you ordered.
In good daylight you can spot the difference.
If you doubt about whether it is sun burn or just the natural tan, look at the
inside of the bricks (rarely discolored) or compare opposite sides.
Light Bluish Gray does not have so much variation, so start by taking out all
that match your 1x3 brick and see how much variation you are left with.
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| | | | | Author: | crazylegoman | | Posted: | Aug 20, 2020 20:10 | | Subject: | Re: Opinion on vintage light gray brick color | | Viewed: | 27 times | | Topic: | Colors | |
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| I have to agree with hpoort. Those bricks are a combination of some True Light
Gray and some Light Bluish Gray.
David
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| | | | | Author: | GTBricks | | Posted: | Aug 22, 2020 11:16 | | Subject: | Re: Opinion on vintage light gray brick color | | Viewed: | 39 times | | Topic: | Colors | |
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| In Colors, robwaysch writes:
| | I'm relatively new to selling on brick link and even less experienced with
vintage sets. I acquired a fairly complete 1984 Knight's Castle set 6073.
I was missing several light gray bricks and I purchased some on brick link. I
know that there can be variation in color between different production runs and
from year to year. Then you have the time factor, sun fading, etc. I took several
pictures of my light gray bricks and I placed a new light bluish gray brick on
top that I took from a recent star wars set. My question to the group is. Are
all these bricks light gray? Should I even bother trying to sell a set with this
kind of color variation? How much of a detraction is this from the sets value?
Thanks.
|
I also opened up a thread regarding bricks and rebuilds of vintage sets.
As a purchaser, what should one tolerate from sellers?
I look at rebuilds and randomly chosen bricks from different areas as hoax.
Some sellers seems to do business on this.
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