(1) The routine installation of bathroom walls and bathroom bathrooms is labor intensive. The industrial production of prefabricated toilet components using rigid polyurethane foam as the core material is highly efficient.
The porous concrete or plaster board serves as a surface layer on both the inner and outer sides, or a glass fiber reinforced plastic laminate as an inner layer and a particle plate as an outer surface layer. Sanitary pipes, fittings, wires, ventilation pipes and some parts of the toilet can be installed on the surface layer for easy dressing. The rest of the space is filled with foam. The foaming pressure is absorbed by the support model. All devices are supported by rigid polyurethane foam. If special supports are required, they are inserted in the foam.
(2) Window sills In the construction industry, in order to seek economic effects, prefabricated concrete components, such as entire wall components or window sills, are used. The demoulding time of the concrete window sill is as long as 3h, too heavy, difficult to transport, and the prefabricated concrete window sill will cause additional heat loss: if the heating pipe or the temperature regulating device is installed under the window, the heat transferred into the window sill will be directly transmitted. Go outside. Window sills made of rigid polyurethane foam avoid these disadvantages. This special production method allows installation time to be much shorter than with concrete parts.
The reaction mixture was filled into a supporting mold equipped with a metal surface layer and a reinforced wire mesh. In many cases, the foam-filled space is covered with a foam glass ball. The demolding time is 5-7 min. The window sill with polyurethane foam core has a metal surface layer outside, while the inner window sill is protected by any surface layer. This window sill can be produced up to 6m in length.
A window sill made of rigid polyurethane foam is about 10 times lighter than a concrete sill made of concrete. The window frame, window sash, window frame, door frame and other components can be made of polyurethane rigid foam structural material with higher density.
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