PUF/PIR expanding and self mould ability has opened loot of other usages. Cavity Filling to get the solidity and low cost is one of them. PUF is used in Boat / Ship wall cavity filling. It is also used to make patterns in moulding technology. PUF is used in fixing windows and frames, and to clear unrepaired gaps. Spray PU systems are used as whether protector and as insulator for Roof and Ceiling. In addition to factory made polyurethane rigid foams (PUR/PIR), in-situ foams are also used in building. They are produced with state-of-the-art equipment “in situ” on the building site itself. In-situ foams are mainly used for technical insulation applications.