What is an effective technique to prevent smoke odors from permeating materials?

Sealing with a clear coat is an effective technique to prevent smoke odors from permeating materials because it creates a barrier on the surface that locks in the odors. Smoke particles can penetrate deeply into porous materials, such as wood and drywall, and simply painting over or covering them will not prevent the odors from eventually seeping through. A clear coat specifically designed for sealing can close off the surface, isolating any trapped smoke particles and preventing them from releasing odors back into the environment.

This technique is particularly beneficial for materials that are difficult to clean or where the odors are likely to persist even after cleaning efforts. By using a sealant, restorers can effectively encapsulate the smoke residue, ensuring that the unpleasant odors do not return after the restoration process is completed.