Foreword Concrete is subject to deterioration by a variety of mechanisms. Properly selected and applied flooring systems can protect from deterioration caused by impact@ abrasion@ and chemical attack@ as well as provide the features and benefits described in Section 1 of this report. This technical committee report provides information on the design@ installation@ and maintenance of protective polymer flooring systems that are applied and directly bonded to concrete. Numerous standards@ conference papers@ books@ and technical reports on many aspects of polymer flooring for concrete have been published by SSPC@ ICRI@ NACE@ and other organizations. This report focuses on those aspects of design@ materials@ and installation procedures that can help the user attain long-term service from a variety of polymer flooring systems for a wide range of applications. This report is intended for use by manufacturers@ specifiers@ applicators@ and facility owners who specify protective polymer flooring systems for concrete. This report was prepared by the SSPC/ICRI/NACE Joint Task Group N (NACE TG 005) on Coatings for Concrete Floors. This task group was comprised of members from all three organizations. At SSPC the Task Group was administered by the C.1 Unit Committee on Coatings and sponsored by Committee C.1.6 on Coatings for Concrete. At ICRI the Subcommittee on Polymer Floors was administered by the Technical Activities Committee and sponsored by the Committee on Coatings and Waterproofing. At NACE@ the Task Group was administered by Specific Technology Group (STG) 02 on Protective Coatings and Linings??Atmospheric. It was also sponsored by STG 03 on Protective Coatings and Linings Immersion/Buried@ and STG 04 on Protective Coatings and Linings Surface Preparation.