Process and a composition for the insulation of surfaces, and product hereby obtained
AssigneeAB Bonnierforetagen
InventorErnst R. Fogelberg
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Abstract
The invention relates to a process for insulating surfaces for the purpose of preventing or reducing occurrence of condensation on the surface, comprising applying to the surface a layer of a coating composition containing a binder and, distributed therein, granules of an expanded inorganic material having a bulk density of at least 150 kgs/m.sup.3. The invention also provides for a composition suitable for carrying out such process, comprising a binder and granules of an expanded inorganic material of the nature indicated.
Claims8
A process for minimizing accumulation of moisture on a cold surface exposed to humidity conditions which tend to cause condensation on said surface, which comprises feeding to the nozzle of a spray head a premixed sprayable coating composition containing a binder dispersed in a liquid vehicle having distributed therein water-absorptive granules of heat-expanded perlite having a bulk density of about 60-70 kgs/m.sup.3, said composition being characterized in that the water-absorptive character of said granules is not occluded, in that said binder is either soluble in or physically-dispersible in said liquid vehicle, and in that it dries to an adherent, water-absorptive, insulating coating, and spray-coating said surface for the purpose of minimizing the collection of condensation on said surface with a thin layer of said composition to form said adherent water-absorptive, insulating coating, said granules having a particle size of about 0.01 to about 1.5 mm, being pretreated with a wetting agent, and constituting from 5 to 20 percent by weight of the composition.
Dependencies are inferred from the claim text.