716 WHITESET EXTRA - WHITEXTRA20 White Set Extra is a white, rapid setting, one part flexible thick or thin bed adhesive for bonding ceramic tiles to floors and most walls. It can be used internally and externally and bonds to most building substrates such as concrete, cement screeds and render, timber etc. Conforms to BS5980 as a Type 1 Class AA Adhesive; i.e. the adhesive is fully water resistant and suitable for continuous immersion (e.g. swimming pools). White Set Extra is the ideal choice for fixing white tiles to floors and walls as the adhesive will give no show through. It is ideal for bonding low porosity tiles such as marble, porcelain, marble composite, certain natural stones etc.