Everbuild rapid set flexiplus is a rapid setting ceramic tile adhesive with added latex powder for improved flexibility rapid set flexiplus is used for bonding ceramic tiles to prepared floors and walls without the need for a separate flexible additive can be used internally and externally and bonds to most building substrates such as concrete cement screeds and render timber existing ceramic tiles dense blockwork and unskimmed plasterboard conforms to bs5980 as a type 1 class aa adhesive ie th