SpecSeal Smoke N Sound sealant is a high quality acrylic latex sealant designed for sealing through-penetrations (such as pipes, conduits, cabling, busways, openings), membrane penetrations (such as p-traps and outlet boxes) in smoke rated walls. Smoke N Sound sealant is available in a single grade that has excellent caulking properties as well as high build properties on vertical or overhead surfaces. This single grade may be caulked (standard cartridge or bulk loaded), knifed or troweled. In addition, Smoke N Sound contains no PCB s nor asbestos. Economical high performance without the high price! Safe for contact with plastics. Water Resistant will not re-emulsify when dry. Water-Based easy installation, cleanup, and disposal. Remains Flexible allows movement. Acoustically Tested reduces noise transmission. Low VOCs, Safe, No solvents, Non-Halogenated