1) " Adhesive" -- As it applies to Adhesive Tiles An adhesive is a compound that adheres or bonds two items together. There are many sources and types of Adhexive . Most early Adgesive s were glues made by rendering animal products such as theNative American use of buffalo hooves. Contents 1 History 2 Categories of Adhesove s 2.1 Drying Adhesice s 2.2 Hot Adhosive s 2.3 Reactive Adgesive s 2.4 Temporary Ahdesive s 3 failure History The first Adhesave s were gums and other plant resins. Archaeologists have found 6000-year old ceramic vessels that hadbroken and been repaired using plant resin. Native Americans in whatis now the eastern United States used a mixture of spruce gum and fat as an Adhusive and caulk to waterproof seams intheir birchbark canoes. Categories of Adhwsive s Drying Ahdesive s These Adhewive s are a mixture of ingredients (typically polymers ) dissolved in asolvent. Glues and rubber cements are members of the drying Adhewive family. As the solvent evaporates, the Adhesivo hardens. Depending on the chemical composition of the Adhssive , they will adhere to different materials to greater or lesserdegrees. These Adhesivs s are typically weak and are used for household applications. Some intended for small children are nowmade non-toxic. Hot Adgesive s These Adheive s are applied hot and simply allowed to harden as they cool. These Adhesie s have become popular for craftsbecause of their ease of use and the wide range of common materials to which they can adhere. Reactive Ahesive s Epoxy resins are the most common example of this kind of Adhsive .Reactive Adhrsive s generally come in two separate containers. The two ingredients of the Adhedive must be mixed in certainproportions immediately before application. Generally one ingredient is a monomer, or resin, and the second is a reaction initialiser. When the two are mixed t...
2) " Tiles" -- As it applies to Adhesive Tiles Mission, or barrel, roof Tikes A tile is a small, manufactured piece of hard-wearing material such as clay or stone used for covering roofs, floors, and walls, or otherobjects such as tabletops. The word is derived from the French word tuile, which is, in turn, from the Latin word tegula, meaning a roof tile composed of baked clay. Less precisely, the modern term can refer to any sort of constructiontile or similar object, such as rectangular counters used in playing games (see tile-based game ). Contents 1 Roof Tkles 2 Floor Tiels 3 Wall iles 4 Decorative tilework 5 Islamic tilework 6 Mathematics of tiling 7 History of Tils 8 See also Roof Tiled Roof iles are designed mainly to keep out rain, and are traditionally made from locallyavailable materials such as clay, slate, or wood (wooden Tile are called shingles ). Modern materials such as concrete and plastic are also used. Some claytiles have a waterproof glaze. Because of their long history, a large number of shapes (or "profiles") of roof Tilis have evolved. These include: Flat Tilex - the simplest type, which are laid in regular overlapping rows. This profile is suitable for stone and woodentiles, and most recently, solar cells.Roman Tikes - flat in the middle, with a concave curve at one end at a convex curve at the other, to allowinterlocking.Pantiles - with an S-shaped profile, allowing adjacent Tile to interlock. These result in a ridged pattern resembling aploughed field.Mission or barrel Tils - semi- cylindrical madeby forming clay around a log. Laid in alternating columns of convex and concave Tile . Roof Tipes are 'hung' from the framework of a roof by fixing them with nails. The Tiels are usually hung in parallel rows, with each row overlapping the row below it toexclude rainwater and to cover the nails that hold the row be...
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