On 14 Jan, 23:32, Malcolm wrote:

Would the politically incorrect please note that there is no such thing
as 'blackboard paint'. *It is chalkboard paint.

OTOH there are whiteboards and whiteboard markers :-)

ITYF they're called 'penboards' by the PC brigade, though the pens I
have in front of me just say 'Dry Wipe Marker', conveniently avoiding
the mention of any type or colour of board.