Encapsulant coatings
Sound paint on the hall walls of a 1950s Hayward ranch may qualify for an encapsulant, which the Department of Labor describes as a coating that bonds to the paint and puts it out of reach. Sashes, sills, stair treads and damp surfaces are poor fits because wear and moisture break the film down, and loose layers underneath can lift it. These are general practice points and not rules.
