Subject:
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Re: How to tell Cellulose Acetate from ABS
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Newsgroups:
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lugnet.general
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Date:
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Fri, 23 Jul 1999 17:44:22 GMT
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Viewed:
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899 times
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I am dismantling and rebuilding my large Blue Castle (on my website) one wing
and tower at a time (4 matching wings with 4 towers) just to find all of the
blue Cellulose Acetate bricks which belong to a German wooden box set (#712)
from 1962 (which has been 95% reassembled). When you compare virtually new
blue Cellulose Acetate bricks with new blue ABS bricks, it might not be that
difficult to tell individual bricks apart, but it is a pain in the butt for me
to find all the Cellulose Acetate bricks in a mostly ABS building.
The Cellulose Acetate blue slopes are different from the ABS blue slopes, a
lighter color to be sure, and also because they are usually warped. In fact,
I have both Cellulose Acetate and ABS blue slopes in my Train Station roof.
There are several variations in not only the color, but also the texture of
the sloped bricks. There are different degrees of courseness to the slope
surfaces, especially among the different ABS slopes. And then there is the
other issue of pieces yellowing.
Gary Istok
Mookie wrote:
> Ok, I can understand most of that, though in some respect I don't agree
> with the blue being harder to seperate, I've got some very old blue
> slopes, and I can tell just by looking in the bin which ones are and
> aren't. They are lighter, not as much a "true" blue as the ones they
> make now. And most are 2x3 :) which helps a little bit :) though even
> the 2x4 slopes are pretty easy to tell. Maybe this is just the case
> with the slopes, I don't believe I have any blue, yellow, black
> Cellulose Acetate bricks.. just white and red ones. One other easy way
> to tell those apart which has been mentioned by Gary many times is the
> logo on the studs.. they go in all directions and it's a different font.
> only thing different on these slopes is it doesn't do that.. it's in the
> old font though they are all nice and neatly put on the stud. I just
> did some checking and I've got these slopes in 1x2 2x2 2x3 2x4 2x4 and
> 2x2 double slope roof ridge, 1x2 end cap, and 1x2 with overhang to
> create a gable, All have Pat. Pending inside of them and I'm pretty sure
> they belong to set 080 that's the only set I have instructions for from
> that period.. though I remember others.. long gone :(
>
> Gary Istok wrote:
> >
> > Chris Dee sent me a personal Email about Cellulose Acetate. So here is
> > a reprint of my reply. Gary Istok
> >
> > ___________________________
> >
> > I was looking at some Cellulose Acetate windows yesterday, and I have to
> > say that some of the pieces (especially white) are a little difficult to
> > tell from ABS Lego.
> >
> > The red pieces are probably the easiest to tell apart. They are a
> > lighter color that has sort of an orange tint to it. White bricks are
> > more difficult to tell apart, probably due to the lack of any color.
> > However the white bricks have a sort of "milky" hue. Yellow and blue
> > Cellulose Acetate bricks are scarcer to find. The Cellulose Acetate
> > yellow is lighter and more "lemon yellow" than the current yellow. The
> > blue is hard to distinquish. And grey or black Cellulose Acetate pieces
> > are very rare.
> >
> > The easiest way to tell all Cellulose Acetate Lego from ABS is warping.
> > If you take a brick and turn it upside down, look at the 2 longest
> > straight edges of the brick bottom. If there is a slight curve, you are
> > almost guaranteed to have Cellulose Acetate. If 2 equal sized bricks
> > are put together, and there is any gap at all somewhere around the edges
> > where they connect, you have Cellulose Acetate. If the windows or doors
> > have any warping at all (very common in Cellulose Acetate windows and
> > sloped bricks) then you have Cellulose Acetate.
> >
> > Also the flat surfaces (including the flat area around the studs on top)
> > can also have some roughness (not wear) and uneven surfaces.
> >
> > ABS plastic tends to keep its shape, even after 35 years. So if your
> > Lego brick has a darker color and no warpage, then it must be ABS.
> >
> > One thing I have noticed is that those large white plates (2x8, 4x8,
> > 6x8) with the square holed bottom are almost always Cellulose Acetate.
> > And yet they don't warp much. The square holed bottom must help
> > preserve the shape of the plates.
> >
> > Gary Istok
> >
> > .
> > > At 04:27 AM 7/23/99 PDT, you wrote:
> > > Hi Gary
> > >
> > > Seeing your recent discussions on LUGNET, is there a surefire way to
> > > recognise Cellulose Acetate parts?
> > >
> > > I have some bricks I have set aside from mixed parts purchases 'cos • they
> > > don't look right. Some are clearly poor quality imitations, but some • have
> > > the italicised LEGO logo on the studs, but the characters are not in • the
> > > same proportions as the current bricks, they are slightly less tall. • The
> > > text is definitely italicised and not squat and upright like some fakes • I
> > > have seen. Any ideas about these - I could drop an example in the post • if
> > > seeing them would help.
> > >
> > > Chris Dee
> > >
> > >
> > >
>
> --
>
> Build everyday!
> -Tamy
>
> http://www.execpc.com/~mookie/lego.html
> http://mookie.iwarp.com/
> Lego isn't a toy, it's a way of life!
>
> MOC++++ CA++++(6080)[dm(6048)bk(6009)df(6079)++++fk++(6007)]
> PI+++(6270)[ig++(6271)is+(6256)]WW++++(6716)TR,AQ++SP[ex+++c]
> #+++++ S- LS++ Hal M+ A+ LM- YB63f IC11
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Message has 1 Reply:
 | | Re: How to tell Cellulose Acetate from ABS
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| The online newsgroups are quiet today ..... the "Dog Days" must be here. (For those non-US folks we in the USA call late July and all of August the "Dog Days of Summer" because throughout most of the USA it is HOT (32-38 degree Celcius) and people (...) (25 years ago, 27-Jul-99, to lugnet.general)
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Message is in Reply To:
| | Re: How to tell Cellulose Acetate from ABS
|
| Ok, I can understand most of that, though in some respect I don't agree with the blue being harder to seperate, I've got some very old blue slopes, and I can tell just by looking in the bin which ones are and aren't. They are lighter, not as much a (...) (25 years ago, 23-Jul-99, to lugnet.general)
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