It is an extremely versatile bonding agent for use with all cementitious materials, lime washes, plasters, etc. It can be used to penetrate substrate as an adhesionpromoting agent, as a primer/ sealer for decorative coatings and as an additive for cement/sand mixes. VIVA clear sealer is a highly concentrated product, specially developed for the most demanding situations. It increases the compressive, tensile and flexural strengths of mortars and reduces the water/cement ration. VIVA clear sealer can be used with confidence on all exterior and interior surfaces.