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  2. Spray foam - Wikipedia

    en.wikipedia.org/wiki/Spray_foam

    Spray foam insulation or spray polyurethane foam (SPF) is an alternative to traditional building insulation such as fiberglass. A two-component mixture composed of isocyanate and polyol resin comes together at the tip of a gun, and forms an expanding foam that is sprayed onto roof tiles, concrete slabs, into wall cavities, or through holes ...

  3. List of polyurethane applications - Wikipedia

    en.wikipedia.org/wiki/List_of_polyurethane...

    Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...

  4. Sponge bomb - Wikipedia

    en.wikipedia.org/wiki/Sponge_bomb

    Small enough that it can be set by a single person, it is a non-explosive, chemical bomb that releases a burst of expanding foam that quickly hardens. [1] [2]

  5. Chemical drain cleaners - Wikipedia

    en.wikipedia.org/wiki/Chemical_drain_cleaners

    Other corrosive mixtures come as two-part cleaners that are mixed as they are poured in the drain opening. Inside the drain the two solutions react to release a gas, and surfactants trap the gas as dense foam. The intent of this foaming action is to coat the inside of the drain pipe to dislodge more of the substances that form the clog.

  6. Pipe cleaner - Wikipedia

    en.wikipedia.org/wiki/Pipe_cleaner

    A plain white pipe cleaner A model of a cat made from pipe cleaners A sculpture of a bird made from pipe cleaners. A pipe cleaner or chenille stem or furry wire is a type of brush originally intended for removing moisture and residue from smoking pipes [citation needed]. They can also be used for any application that calls for cleaning out ...

  7. Pigging - Wikipedia

    en.wikipedia.org/wiki/Pigging

    There are several types of pigs for cleaning in various densities, from 32 to 160 kilograms per cubic metre (2 to 10 lb/cu ft) of foam, and in special applications up to 320 kg/m 3 (20 lb/cu ft). Some have tungsten studs or abrasive wire mesh on the outside to abrade rust , scale , or paraffin wax deposits from the inside of the pipe.

  8. Pipe insulation - Wikipedia

    en.wikipedia.org/wiki/Pipe_insulation

    Pipe insulation made from rigid Phenolic, PIR, or PUR foam insulation is common in some countries. Rigid-foam insulation has minimal acoustic performance but can exhibit low thermal-conductivity values of 0.021 W/(m·K) or lower, allowing energy-saving legislation to be met whilst using reduced insulation thicknesses. [8]

  9. Drain cleaner - Wikipedia

    en.wikipedia.org/wiki/Drain_cleaner

    A drain cleaner, also known as drain opener, refers to a person, device, or product used to unblock sewer pipes or clear clogged wastewater drains.This term typically applies to chemical, enzymatic, or mechanical tools such as commercial chemical cleaners, plumber’s snakes, drain augers, bio-enzyme solutions, or toilet plungers.

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