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  2. Densities of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Densities_of_the_elements...

    — "Values ranging from 21.3 to 21.5 gm/cm 3 at 20 °C have been reported for the density of annealed platinum; the best value being about 21.45 gm/cm 3 at 20 °C." 21.46 g/cm 3 — Rose, T. Kirke. The Precious Metals, Comprising Gold, Silver and Platinum .

  3. Glass fiber - Wikipedia

    en.wikipedia.org/wiki/Glass_fiber

    Glass fiber, when used as a thermal insulating material, is specially manufactured with a bonding agent to trap many small air cells, resulting in the characteristically air-filled low-density "glass wool" family of products. Glass fiber has roughly comparable mechanical properties to other fibers such as polymers and carbon fiber. Although not ...

  4. Fiberglass - Wikipedia

    en.wikipedia.org/wiki/Fiberglass

    Other common names for fiberglass are glass-reinforced plastic (GRP), [1] glass-fiber reinforced plastic (GFRP) [2] or GFK (from German: Glasfaserverstärkter Kunststoff). Because glass fiber itself is sometimes referred to as "fiberglass", the composite is also called fiberglass-reinforced plastic ( FRP ).

  5. Fibre-reinforced plastic tanks and vessels - Wikipedia

    en.wikipedia.org/wiki/Fibre-reinforced_plastic...

    FRP tanks and vessels designed as per BS 4994 are widely used in the chemical industry in the following sectors: chlor-alkali manufacturers, fertilizer, wood pulp and paper, metal extraction, refining, electroplating, brine, vinegar, food processing, and in air pollution control equipment, especially at municipal waste water treatment plants and water treatment plants.

  6. Kilogram per cubic metre - Wikipedia

    en.wikipedia.org/wiki/Kilogram_per_cubic_metre

    The kilogram per cubic metre (symbol: kg·m −3, or kg/m 3) is the unit of density in the International System of Units (SI). It is defined by dividing the SI unit of mass, the kilogram, by the SI unit of volume, the cubic metre. [1]

  7. List of physical properties of glass - Wikipedia

    en.wikipedia.org/wiki/List_of_physical...

    This is a list of some physical properties of common glasses. Unless otherwise stated, the technical glass compositions and many experimentally determined properties are taken from one large study. [1]

  8. FR-4 - Wikipedia

    en.wikipedia.org/wiki/FR-4

    FR-4 (or FR4) is a NEMA grade designation for glass-reinforced epoxy laminate material. FR-4 is a composite material composed of woven fiberglass cloth with an epoxy resin binder that is flame resistant (self-extinguishing).

  9. Polycarbonate - Wikipedia

    en.wikipedia.org/wiki/Polycarbonate

    Density ρ) 1.20–1.22 g/cm 3 ... 2.6–2.8 €/kg [4] Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical ...