Gypsum board on how to get rid of smoke
In order to avoid its penetration, in the clean up the walls of the wall to clean the high quality interface agent 1-2 times; then plaster plaster full scratch again (do second protection). To be dry, and then scraping porcelain or handle putty, latex paint.
Penetration into the gypsum board inside the oil stains, has a strong penetration. The general coating can not cover it - re-do the coating layer, will be yellow in a few hours later, discoloration.
First with a knife to clean the gypsum board oil on the smoke, and then brush interface agent, caulking gypsum, surface treatment.