Evolved over a span of more than 50 years, BAL CTF4 stands as a benchmark polymer-modified cementitious tile adhesive for both walls and floors. With an extended open time of 30 minutes and a pot life of 5 hours, BAL CTF4 is well-suited for the installation of ceramics, porcelain, vitrified tiles, mosaics, specific natural stones, terrazzo, rigid foam insulating materials, and brick slips. Its adaptability extends to both dry and wet interior and exterior environments, making it particularly recommended for large-format wall tiles and showers. Notably, BAL CTF4 exhibits high resistance to water and frost.