BILDING UNION additive, emulsion specially designed for joining old concrete with fresh one.
It makes the connection between the old and the new surfaces, between materials and concrete, plasters, plasterboard, mortar, floors, etc.
HOW TO USE
The substrate must be well cleaned of dust, oils or grease.
It is recommended to water the surface 12 hours before. Apply over the entire surface where new concrete will be poured.