Home > How To > Exteriors > Q&A: Painting Over Smoke Damaged Walls Exteriors Q&A: Painting Over Smoke Damaged Walls Concrete Addition By Hank Spies Login or Register to download the PDF version of this article. (83.91 kB) A.Several paint manufacturers have special products for sealing in smoke. One isMAB Lok-Tite,(M.A. Burder Co., P.O. Box 600, Reed Rd., Broomall, PA 19008; 215/353-5100). Login or Register to read the full article.