{"version":"1.0","type":"card","id":"e26925a7-76b8-4da3-bacb-06901f13caf3","url":"https://stacklist.com/card/e26925a7-76b8-4da3-bacb-06901f13caf3","title":"Treadstone SiteMix Gypsum Underlayment: CSI MasterSpec 03 54 16 (Gypsum)","source_url":null,"note":"Treadstone® SiteMix is a fire-rated, polymer-modified, self-leveling gypsum cement underlayment mixed on-site, designed for high compressive strength, precise thickness control, and superior surface hardness over various substrates. The specification details comprehensive requirements for product data, UL listings, mix design, on-site quality control including batch records, slump tests, compressive strength tests, and installer qualifications.","image":null,"stack":{"id":"b062ea44-534f-4db3-9fb1-b94e459cd58c","title":"Waterproofing & Flooring MasterSpec Docs","url":"https://stacklist.com/c/business/stack/b062ea44-534f-4db3-9fb1-b94e459cd58c"},"created_at":"2026-07-08T19:12:13.184Z","updated_at":null,"aco":null,"_links":{"self":"/api/public/card/e26925a7-76b8-4da3-bacb-06901f13caf3.json","html":"https://stacklist.com/card/e26925a7-76b8-4da3-bacb-06901f13caf3","md":"/api/public/card/e26925a7-76b8-4da3-bacb-06901f13caf3.md","stack_json":"/api/public/stack/b062ea44-534f-4db3-9fb1-b94e459cd58c.json"}}