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KOSTER American Corp. is proud to announce that Jenilee Lucero received the CSI President’s Certificate of Appreciation at the 2026 CSI Mid-Atlantic Region Conference (MARC26) in Norfolk, VA. The award recognizes her outstanding service, leadership, and dedication to the Construction Specifications Institute and the broader construction industry.
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KOSTER PRO Series: Practical Training & Insights for Better System Performance
Join KOSTER technical experts as they showcase and discuss proven KOSTER systems for waterproofing, moisture mitigation, and flooring. Each session delivers practical insights, application guidance, and best practices to help you specify, install, and build with confidence.See What’s Coming Up — and Secure Your Spot.
Since November 14, 2017, there are once again two test certificates for Radon resistance. In addition to the KÖSTER KSK SY 15, the seam overlap of the membrane was also successfully tested.
Patented process for creating subsequent horizontal barriers by means of a water-repellent cream
KÖSTER OS 8 coating successfully installed
OS 8 coating is a concrete protection system with an increased grip and chemical resistance for traffic areas, e.g. public parking facilities or industrial plants.
ETA approval for KÖSTER NB 1 Grey (mineral sealing slurry)
KÖSTER NB 1 Grey can be sold as a mineral sealing slurry via a CE mark
Better product availability, less environmental impact, longer shelf life, safer and simpler packaging: this is the packaging strategy of the KÖSTER BAUCHEMIE.
Cold applied self-adhesive tape for sealing the upper edges of KÖSTER KSK sealing membranes. KÖSTER Butyl Fix-Tape Fleece can be plastered over.
KÖSTER Butyl Fix-Tape Fleece is 1.5 mm thick with a separating backing paper on the bottom side. The material is highly tear resistant, immediately waterproof and can be plastered over due to its fleece-laminated upper side. Priming before application of the KÖSTER Butyl Fix-Tape Fleece is not necessary.
1.5 mm x 150 mm.
