Awards 2019

Quieter shutter boxes with acoustic insulation made from PVC

Increasing acoustic insulation in register and shutter boxes, LaViuda has developed a specific composition to replace adhesive bituminous foils with a PVC profile. It’s based on PVC Inovyn 271DF, epoxidised soybean oil (ESBO) as a prime plasticiser and co-stabiliser, and a barium sulphate mineral filler (BaSO4). Through extrusion, the result is a foil that is integrated on the rigid PVC profile of the register box lid. The foil is attached to the structure by a laminating process and a bonding process using reactive polyurethane.