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Sand with a very fine grit sandpaper such as you would use to finish sand a car. Use a wide block and broad strokes. Finish by water-washing, letting it dry then chalking it completely and erasing with a felt eraser.

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Q: How do you clean lead pencil off a blackboard?
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Related questions

What the pencil eraser made out of?

Plastic or rubberIt is made out of rubber.


What is a pencil lead made off?

It is made of graphite, or carbon.


Is there lead in marijuana?

If your dealer put pencil lead in your bag, you got ripped off. If there was lead in the water it was grown in, some of it will have traveled into the plant.


How do you shaepen a pencil with out a pencil sharpener?

You can sharpen a pencil, by using a blade, or your own teeth! You can use a blade, and scrape the wood, so that the lead comes out. You can also scrape it off with your teeth.


My Dr Grip Lead Pencil got jammed and I can't get the cap off What do I do?

you should tried to pull it off with pliers or a vice.


How do you clean a battery leak inside a radio?

Use a pencil eraser to clean off the contacts and remove the corossion. You can also use CRC electronic cleaner to clean out all the acid residue.


Does Lead have any carbon?

If you're talking about pencil lead, it's made up of layers and layers of carbon. For example, when you write with pencil, the lines that you make on paper are just layers of carbon that had come off your pencil lead.


Why is graphite used in pencil lead?

It is a soft, dark material that shows up well on white paper and can be rubbed off.


What is the active ingredient in pencil lead?

I can't remember exactly remember off the top of my head right now but I'm almost certain it is aluminum sulfate. I know for certain that it is some type of an aluminum ion compound.


How do you refill a blass machanical pencil?

take off the back metal cap, pull out the eraser, pull out the brownish thing that holds the eraser then put the lead on the out side of the gold thing. if you try to put it in the gold thing the lead will get jammed in the mechinism therefore ruining the pencil


What is a wax pencil and how is it used in chemistry?

A wax pencil (or grease pencil) is often used to label test tubes in a laboratory. Wax pencils are used to mark non-porous surfaces, like glass, and are easy to clean off for re-use (with warm, soapy water).


What can you do when your pencil broke and you don't have a sharpener?

First off, you should check to see if it is a mechanical pencil or not. If it a regular pencil the fix will be much easier. Just find a pencil sharpener, stick the pencil in, and hold it there until it's sharp. If you don't have a sharpener, you could go to any office supplies store and buy one (prices range from $2 to $172). If you don't have a car, and can't secure a ride there, then you should pull out a pocketknife and cut back the wood surrounding the lead. If all else fails, then break the pencil in half and get a new one. If it is a mechanical pencil, the only logical fix is to get a new pencil. You can find them in the same stores as the sharpeners.