They are green
Large dry erase board are commonly used in schools or offices. Given the text on the board has to be seen from far away it is helpful given the board is big enough to write a bit bigger.
they where erasable
try using mr clean Dry erase marker on a smart board? This is why I don't like to see white boards next to smart boards. The white board markers are very easy to confuse with the non marking smart board markers. Use a wet rag to remove the dry erase marker from your smart board and then, paint the dry erase markers a neon orange so that they can be easily identified. For those of you who may not know what a smart board is, it is a screen that uses a projection generated by a pc to see an overhead display. It has a rougher surface than a dry erase board so special markers are supplied with the board that will only be visible on the smart board.
so teachers can get many uses out of it
It is "possible" to use water-based markers on whiteboards, yes, but it is not recommended. You'd need to use a damp cloth in order to remove it. Whiteboards aren't intended to be dampened, and doing so could cause warping to the board itself (depending on the composition of the board). Whiteboards are intended to be used with dry erase pens or dry erase markers, so I would suggest using those instead.
i think so. for like a really tough marker stain i guess so.
It does seem a little counterintuitive that adding more marker would help to get rid of the marks, but this trick really works! Dry erase markers have a unique makeup of chemicals so that they can be easily erased from surfaces that won’t absorb them, like a dry erase board (they are, of course, not so erasable when you get them on your clothes—no, I’m not bitter). Some of those chemicals are alcohols, which act as solvents and dissolve the permanent marker, making it erasable.Also, as I learned this week, it also works on five-year-old dry erase marker! Who knew.
so he could find a dry erase board so his students could watch the play
Hair spray it gets sharpies off so pretty sure it will get expo off
You would be surprised. I was messing around with my diecast model buses and I discovered because at first I was using a wash cloth and water and it wasn't getting me anywhere so I thought to myself if I use a dry erase marker over the permanent marker it might work because when you have marker on a board and it wont come off, you scribble on it with a dry erase and then erase so I did that with my buses and it worked! try it out.
The ink used in dry-erase markers is almost identical to that used in permanent markers. It is comprised of colored pigments, a chemical solvent (like alcohol) and a polymer or "release agent." The type of polymer used marks the main difference between dry-erase and permanent markers. Unlike permanent markers, which use acrylic polymers to make the pigment stick to surfaces, dry-erase markers use an oily silicone polymer. The ink's slippery consistency prevents the colored pigment from coming in direct contact with the surface so it can easily be wiped off.
they headed to the great plians so they would not have to deal with the dry land
Yes, and it is safe to eat off of, so it may be used for things like wood plates, bowls, and cutting boards.