It is ok to spray yellow on Chinese columns, but it must be treated before painting.

Precautions for painting: 1. Paint construction must be carried out within the indoor temperature required by the product. Different products have different temperature requirements, which can be found in the product packaging or instructions. 2, each working procedure should ensure the dry edge of the second working procedure; 3. Use the same coating, and don't mix different kinds of coatings to avoid adverse reactions. 4, construction, completes the safety protection measures, such as wearing a mask, etc.