WIKO-Wiki: 0-9
1C-PU-Adhesives
1-component polyurethane adhesives contain moisture-reactive binders. These consist of an isocyanate-containing prepolymer (precursor), which reacts with water from the air and from the substrate to form PU, releasing carbon dioxide (CO2). As the adhesives contain isocyanate, they are subject to labelling. They can be used almost without restriction for parquet bonding. Due to the splitting off of the CO2, the adhesives foam up minimally and can therefore partially compensate for hollow spots.
