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  2. Chromate conversion coating - Wikipedia

    en.wikipedia.org/wiki/Chromate_conversion_coating

    The chromate coating acts as paint does, protecting the zinc from white corrosion, thus making the part considerably more durable, depending on the chromate layer's thickness. [ 8 ] [ 9 ] [ 10 ] The protective effect of chromate coatings on zinc is indicated by color, progressing from clear/blue to yellow, gold, olive drab and black.

  3. Conservation and restoration of paintings - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    There is solvent-based and water-based. Solvent-based acrylic paints are soluble in mineral spirits, and water-based acrylic paints are water-soluble. Acrylic paint differs from oil paint in both its quick drying time, and how the paint dries. Acrylic paint dries in as little as thirty minutes, and dries by the evaporation of the solvent or ...

  4. Synta Technology Corporation of Taiwan - Wikipedia

    en.wikipedia.org/wiki/Synta_Technology...

    Synta Technology Corporation was founded in Taoyuan, Taiwan around 1980 by mechanical and optical designer Dazhong Shen, (a/k/a David Shen). In 1992 Synta, along with Canadian investors, established the Suzhou Synta Optical Technology Co., Ltd in Suzhou (Jiangsu), China (outside Shanghai) as a manufacturing facility producing telescopes for Celestron and Tasco.

  5. Black oxide - Wikipedia

    en.wikipedia.org/wiki/Black_oxide

    A standard black oxide is magnetite (Fe 3 O 4), which is more mechanically stable on the surface and provides better corrosion protection than red oxide Fe 2 O 3. Modern industrial approaches to forming black oxide include the hot and mid-temperature processes described below. Traditional methods are described in the article on bluing. They are ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Conservation-restoration of the Statue of Liberty - Wikipedia

    en.wikipedia.org/wiki/Conservation-restoration...

    The 6,000 or so separate components of the scaffold, made of a high load capacity aluminum (alloy 6061 T6), were unloaded onto Liberty Island on January 23, 1984. Aluminum was used to prevent possible rust stains from affecting the exterior patina of the statue. Screw jacks were used to brace the aluminum against the granite pedestal of the statue.

  8. Conservation and restoration of lacquerware - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Traditional Asian lacquer has been used for centuries [2] and is derived from sap, prominently that from the Urushi tree; part of the sumac family grown throughout Japan, China and Korea. [3] Sap from the tree contains a chemical compound called urushiol that hardens when exposed to humidity. [4] The sap is processed to remove impurities. [5]

  9. Copper in architecture - Wikipedia

    en.wikipedia.org/wiki/Copper_in_architecture

    Comparison of lifespan, embodied energy, and embodied CO 2 emissions of copper, stainless steel, and aluminium in roofing and cladding materials. (Source: German Ministry for Environmental Affairs, 2004) [11] [43] Copper Stainless steel Aluminium Typical thicknesses (mm) 0.6: 0.4: 0.7 Lifespan (years) 200: 100: 100 Embodied Energy (MJ/m 2) 103. ...

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