{"version":"1.0","type":"card","id":"514e3712-a453-4857-934c-2add48e28663","url":"https://stacklist.com/card/514e3712-a453-4857-934c-2add48e28663","title":"Gypsum Concrete Depth and IIC/STC Performance Data","source_url":"https://www.cemplexgroup.com/services/gypsum-concrete/","note":"Every inch of gypsum depth changes acoustic output. Cure time: 24 hrs to walk, 28 days to full compressive strength. Do not apply finish flooring until moisture content is at or below 75% RH. Paired with Treadstone Elite, meets virtually any IIC/STC target in a single scope.","image":{"url":"https://ucarecdn.com/78b39573-36d0-4924-a0e4-2536a652154d/","alt":"Gypsum Concrete Depth and IIC/STC Performance Data","width":480,"height":640},"stack":{"id":"f20d45f7-f257-4126-b723-226c1f44f0a6","title":"Sound Control Systems for Multifamily Buildings","url":"https://stacklist.com/c/technology/stack/f20d45f7-f257-4126-b723-226c1f44f0a6"},"created_at":"2026-06-23T19:06:14.659Z","updated_at":null,"aco":null,"_links":{"self":"/api/public/card/514e3712-a453-4857-934c-2add48e28663.json","html":"https://stacklist.com/card/514e3712-a453-4857-934c-2add48e28663","md":"/api/public/card/514e3712-a453-4857-934c-2add48e28663.md","stack_json":"/api/public/stack/f20d45f7-f257-4126-b723-226c1f44f0a6.json"}}