How to draw R2 as 1K?

The method of distinguishing 1k is as follows:

1, dilute, pour it out with a ruler and wait a few minutes to know.

2. 1k is metallic paint. Shine with a mobile phone flashlight, and there are metal particles on the paint surface, such as silver with silver powder particles and pearls with colored particles.

3. Plain paint looks a little opaque, while metallic paint looks brighter.

4, two thousand sandpaper grinding will know, black water is 2k, white water is1k.