Specco B-30 is a P.V.A. based copolymer liquid used to bond new concrete, mortar, stucco,
plaster and other cement or gypsum based materials to existing, clean, structurally sound surfaces. Specco B-30 may be used
integrally in the mix or as a bonding primer for horizontal and vertical, interior and exterior applications. Specco B-30 is
unaffected by the high alkalinity of gypsum, lime and cement and will rewet up to 72 hours for one time only after covering with
cement based toppings. After the applied topping has been allowed to dry completely, the surface will be moisture resistant.
plaster and other cement or gypsum based materials to existing, clean, structurally sound surfaces. Specco B-30 may be used
integrally in the mix or as a bonding primer for horizontal and vertical, interior and exterior applications. Specco B-30 is
unaffected by the high alkalinity of gypsum, lime and cement and will rewet up to 72 hours for one time only after covering with
cement based toppings. After the applied topping has been allowed to dry completely, the surface will be moisture resistant.
