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  2. Wood finishing - Wikipedia

    en.wikipedia.org/wiki/Wood_finishing

    Excellent. It finishes hard and can be buffed to a gloss. Use a release agent. A thick finish can leave a plastic feel. 2-Part polyurethane: Transparent Stronger protection than regular polyurethane varnish Durable once cured, generally less than an hour low or free of VOCs, nonreactive when cured

  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. Varnish - Wikipedia

    en.wikipedia.org/wiki/Varnish

    Polyurethane may also be applied over a straight oil finish, but because of the relatively slow curing time of oils, the emission of certain chemical byproducts, and the need for exposure to oxygen from the air, care must be taken that the oils are sufficiently cured to accept the polyurethane.

  5. 118 Satisfying Before And After Restoration Pics That Prove ...

    www.aol.com/lifestyle/118-satisfying-restoration...

    Before applying a new finish to the piece, the surface has to be sanded. When that’s done, remove any sawdust and be mindful of the thin veneer, as it can be damaged quickly. Then, a finish of ...

  6. Polyurethane - Wikipedia

    en.wikipedia.org/wiki/Polyurethane

    Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links.

  7. How To Clean And Care For Antiques, According To An Expert - AOL

    www.aol.com/lifestyle/clean-care-antiques...

    Identify the Material and Finish ... “For any wood finished with lacquer, oil, polyurethane, or varnish, we use a very diluted mixture of Sal Suds Biodegradable Cleaner and water,” he explains ...

  8. Moisture cure polyurethane - Wikipedia

    en.wikipedia.org/wiki/Moisture_cure_polyurethane

    Moisture cured polyurethane–urea coatings have been made by reacting 1,2,3-triazole rich polyether polyols with HMDI at NCO/OH eq. ratio of 1.2 to obtain isocyanate-terminated polyurethane prepolymers. The prepolymers were cured under atmospheric moisture to make polyurethane–urea free films. [5]

  9. Wood flooring - Wikipedia

    en.wikipedia.org/wiki/Wood_flooring

    PolyurethanePolyurethane floor finishes were first introduced around 1942. Water-based urethane is harder than oil-modified polyurethane and is much safer for the user. Within both categories there are many variations and other names used to describe the finish. They have very different refinishing and maintenance requirements.

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