| Let’s look at the difference between poster colour and water colour property wise |
| WATER COLOR | POSTER COLOR |
| Water Colors come with a tube/pan. | Poster Colors pakackaging are in a glass jar or small bottle. |
| Water colors takes time in drying compared to poster color | Poster colors take less time to dry compared to n water color |
| Water colors are not thick like poster color. | Poster colors are thick. |
| Water colors are mostly used by artist . | Poster colors are student quality. |
| Water colors are more costly than poster colors. | Poster colors are cheaper than watercolors. |
| When mixed with water and applied to paper, watercolors are usually transparent | When mixed with water and applied to paper, water colors are usually opaque. |
| Water colors don’t smell much | Poster colors have a little bit smell. |
| Water colors are made of some chemical pigments. | Poster colors are made of acrylic (a form of plastic) |
| Both are Water Based | |
| Both have to be framed under glass for long-term display | |
| None of the above are waterproof/moisture-proof when dry |
So if you need to frame a sentence with the above properties then, for the question
What is the difference between poster colour and water colour?
The answer is: Water colour is transparent while Poster Paint is opaque. All three are water-based paints, which means both these colors utilize water as a solvent. Watercolor and gouache have finer pigments and can come in both tubes and pans while poster paints, with pigments more coarse, often come in jars.