This is the old blackboard : "board + paint".
Old-fashioned blackboards, usually made of wood, with black paint (not water-based paint), and then the blackboards.
The old reversible blackboards were double-sided, with a white board on one side and a green board on the other (because green is visually friendly).Green plate side, is the metal surface made of baking paint.
This is a beautiful blackboard sticker：
One is PP with paper type, one is magnetic blackboard sticker.
PP stickers, one side is self-adhesive, the other side is frosted PP.(excluding paint)
If the wall itself is smooth, flat and strong, it can be applied directly.Instantly change the original wall into a new blackboard wall, and can be removed at any time when it is not needed or needs to be replaced, leaving no trace.
If you want to build a blackboard wall at home, there are several options:
Make a piece of blackboard to hang directly, advantage: feelings are priceless.Cons: expensive and heavy
Paint of blackboard is brushed on the wall, advantage: better than sticker simple sense, drawback: slant expensive, decorate brush a wall is a technology to live (want even), cannot remove
PP black side paste: advantages: cheap, convenient decoration, can be removed.Cons: no idea.
