1. Open the can and smell the texture
1. Open the lid of the paint bucket and stir the paint until Uniform
2. Smell whether there is a pungent smell. Inorganic paint has a faint lime smell, while latex organic paint has a slightly pungent smell, especially the smell of inferior latex paint. This smell is mainly composed of organic volatile formaldehyde and other harmful substances.  
3. Brush the paint on the wall with a roller to see if there are tiny particles. Inorganic paints are generally made of minerals, so they have a particle feel. The surface of latex paint is relatively smooth and shiny.

Second, burn the coating film to see the flame and smell

1. Open the lid of the paint bucket and stir the paint until uniform
2. Apply the paint evenly on the film, dry it in an oven at 40—60°C, take it out or dry it naturally
3. Peel off the paint coating from the film Come down, pick up a small piece of coating with tweezers, and ignite the coating in a ventilated place with an alcohol torch or a windproof lighter.
Inorganic coatings can withstand high temperatures of 1200 ° C, do not burn, and do not produce irritating gases. Even if they burn red, the coating will be extinguished immediately after leaving the flame. Latex paint can burn and be ignited within a few seconds , It can burn by itself after leaving the flame, and produce harmful gas with strong pungent smell. It will be very uncomfortable for the human body to breathe.