Excelsior Bond & Key 4 Plaster (Prices From)

a high performance, easy to use water-based bonding and keying agent. It can also be used into gypsum plaster and cement plaster mixes to promote adhesion, water repellancy and durability. It bonds weak and powdery previously painted surfaces to strengthen the substrate before top-coat painting.  It Improves adhesion of cement and Gypsum plaster to smooth impervious surfaces such as composite board, face brick and other similar substrates.

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