Pour-in place and foam

In site foaming can either be pour-in place and foam or spray on in-site type. 

Pour-in place and foam is a very attractive on-site method used for thermal insulation. This method, although not commonly used mainly due to its rather imfavourable economy, is very practical. The technique uses relatively simple equipment, and rests on the principle of pouring the specially formulated mixture to be foamed as a low viscosity liquid into the cavity to be filled (usually between the load bearing inner face of the wall and the weather resistant facade wall of brick-cement or masonry, for cavity wall construction or between metal boards to produce sandwich panels, etc.), where the mixture is left to foam and adhere the walls by sealing the cavity effectively. 

For the pour-in place and foam technique, there is a group of characteristic rigid PU foam applications available, however, their largest consumption area is in the insulation of refrigerators and freezers, but not that much in the construction industry. Standard two-component formulations with special adaptations, or one-component systems that cure by reaction with the moisture existing in the atmosphere, are available. The method produces highly effective thermal and noise insulation as well as physical reinforcement, although the foams produced are less uniform than those produced in-plant. 

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See also in sourсe #XX -- [ ]

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