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Painting: what makes paint stick?
Words to learn: paint • pigment • binder • drying
Why does coloured powder fall off a surface, while paint stays put?
WHERE DOES THE COLOUR COME FROM?
A coloured powder called pigment gives paint its colour.
WHAT MAKES IT STICK?
A binder acts like a glue. It spreads the pigment over the surface and holds it there.
WHAT HAPPENS WHEN IT DRIES?
As a simple water-based paint dries, water escapes and the binder hardens, leaving the colour held firmly in place.
WHAT YOU NEED TO KNOW
NOW LOOK AT THE TEXTBOOK
