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5

I use pure Eucalyptus oil. It works wonderfully. Keep in mind that if you are using it on LEGO, it will also remove the original printing (but won't harm the plastic itself), so I wouldn't recommend it in that case. But other than that Eucalyptus oil can remove marker, paint, glue-residue, and all kinds of gunk much better and faster than products like ...


2

I've been to Legoland Windsor (in the UK) on one of the days they were cleaning some of the boats, and it looked hard - all manual work, with a large toothbrush and plenty of elbow grease


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It's very unlikely to be lead, smaller batteries don't use it. If the batteries were old rechargables they might contain cadmium (NiCd batteries). Most likely what you had was a disposable AA battery which will be an alkaline cell. As you'd guess, you can neutralise that with acid. But not a strong acid - you don't want to dissolve away the metal parts of ...


2

The yellowing that is common in some colors is caused when a fire retardant that was added to the ABS plastic breaks down under UV light. One of the elements used in the fire retardant is bromine. When the chemical degrades, bromine atoms can be freed and can make their way to the surface of the brick where they bond with an oxygen molecule (O2) and take ...


2

The retr0brite method only affects the surface of the brick and does not affect the clutch power. I have used the method on several printed bricks. I have noticed the black printing will start to fade if the bricks are left in the solution for a long time. I have not noticed that it affects other colors as much as black, but this may be because the fading ...


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I've used a dry erase marker, over the permanent, to remove it from a white board. I don't know if that'd work on Lego or not.


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Using something you may already have in your home: Aerosol hairspray Spraying this over permanent marker allows the marker to be wiped off, and then you can rinse off the residue in warm water. I've used or seen used this remedy on many types of plastic in my life, but I can't recall if I've used it on LEGO pieces before. I think I did use it on a yellow ...


1

I know it's not the most cost-effective way, but I used to use gasoline on a rag to remove a lot of markings on plastics of all kinds. It won't warp the plastic when used sparingly on a rag. The only downside is that it may "smear" the marker, depending on the kind of marker that was used.


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Most of the answers here use various combinations of air and brushes to get rid of dust. This works fairly well; I used to dust my model airplanes with the same paintbrushes I used for painting them. I second the tiny portable vacuum cleaner too. However, my go-to option for dusting models that have been standing around too long is soapy water. I recently ...



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