Concrete repair process

The present invention provides a process for repairing concrete involving filling one of a void, gap or seam in the concrete with a polyurethane sealant containing a silane terminated prepolymer ("STP"), and a catalyst, optionally, one or more of plasticizers, fillers, pigments, drying age...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Johnston, Jay A
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention provides a process for repairing concrete involving filling one of a void, gap or seam in the concrete with a polyurethane sealant containing a silane terminated prepolymer ("STP"), and a catalyst, optionally, one or more of plasticizers, fillers, pigments, drying agents, light stabilizers, antioxidants. thixotropic agents and bonding agents and applying an isocyanate-terminated prepolymer containing polyurethane or polyurea coating to the silane terminated prepolymer polyurethane sealant.