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  2. Sand reinforced polyester composite - Wikipedia

    en.wikipedia.org/wiki/Sand_reinforced_polyester...

    Sand reinforced polyester composites (SPCs), are building materials with sand acting as reinforcement in the composite.Pioneers in using sand reinforced composites include German business men Gerhard Dust and Gunther Plötner, who made sand reinforced composite bricks with polyester resin and hardener to provide emergency relief housing for those affected by the 2010 earthquake in Haiti.

  3. Conformal coating - Wikipedia

    en.wikipedia.org/wiki/Conformal_coating

    Conformal coating is a protective, breathable coating of thin polymeric film applied to printed circuit boards (PCBs). Conformal coatings are typically applied with 25–250 μm [ 1 ] thickness on electronic circuitry to protect against moisture and other substances.

  4. Vision Street Wear - Wikipedia

    en.wikipedia.org/wiki/Vision_Street_Wear

    In 1984 Vision sports released their first pro model skateboard for skater Mark 'Gator' Rogowski designed by Greg Evans. [2] This was followed by a release of a pro model deck for skater Mark Gonzales (1985) and the iconic "Psycho Stick" (1986), both designed by Los Angeles-based artist Andy Takakjian. [ 2 ]

  5. Geosynthetics - Wikipedia

    en.wikipedia.org/wiki/Geosynthetics

    Geofoam is a polymeric product created by processing polystyrene into a foam consisting of many closed cells filled with air and/or gases. The skeletal nature of the cell walls resembles bone-structures made of the unexpanded polymeric material.

  6. Binder (material) - Wikipedia

    en.wikipedia.org/wiki/Binder_(material)

    Sand is added to improve compressive strength, hardness and reduce shrinkage. The binding property of clay is also used widely to prepare shaped articles (e.g. pots and vases) or to bind solid pieces (e.g. bricks). In composite materials, epoxy, polyester or phenolic resins are common.

  7. Sandpaper - Wikipedia

    en.wikipedia.org/wiki/Sandpaper

    Sheets of sandpaper with different grit sizes (40 (coarse), 80, 150, 240, 600 (fine)) Sandpaper, also known as glasspaper or as coated abrasive, is a type of material that consists of sheets of paper or cloth with an abrasive substance glued to one face. [1]

  8. Resin identification code - Wikipedia

    en.wikipedia.org/wiki/Resin_identification_code

    Resin code for polyethylene terephthalate Polypropylene lid of a Tic Tac box, with a living hinge and the resin identification code, 5, under its flap. The Resin Identification Code (RIC) is a technical standard with a set of symbols appearing on plastic products that identify the plastic resin out of which the product is made. [1]

  9. Grain size - Wikipedia

    en.wikipedia.org/wiki/Grain_size

    Wentworth grain size chart from United States Geological Survey Open-File Report 2006-1195: Note size typos; 33.1mm is 38.1 & .545mm is .594 Beach cobbles at Nash Point, South Wales Grain size (or particle size ) is the diameter of individual grains of sediment , or the lithified particles in clastic rocks .