SEF 666 Plus / SEF 666 Plus WHITE is a high-performance, polymer-modified adhesive classified as C2TE and Type 3, designed for superior strength and durability in interior and exterior wall applications. Ideal for large-format ceramic, vitrified, semi-vitreous tiles, marble, granite, and natural stones, it offers exceptional adhesion and extended open time up to 30 minutes. Engineered for demanding vertical installations like wall cladding, façades, and door/window frame fixing, SEF 666 Plus is perfect for both residential and commercial projects, even in high-temperature environments.