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Styrofoam insulation extruded polystyrene foam (XPS), owned and manufactured by DuPont. Styrofoam is a genericized trademarked brand of closed-cell extruded polystyrene foam (XPS), manufactured to provide continuous building insulation board used in walls, roofs, and foundations as thermal insulation and as a water barrier.
Rigid cellular polystyrene (RCPS). This includes extruded polystyrene foam XPS (such as Styrofoam and commonly referred to as "blue board," expanded polystyrene foam EPS (commonly referred to as "beadboard"), and MEPS. Polyisocyanurate (also known as polyiso). More stable at high temperatures and less flammable than polyurethane.
Extruded polystyrene foam (XPS) consists of closed cells. It offers improved surface roughness, higher stiffness and reduced thermal conductivity. The density range is about 28–34 kg/m 3. [55] [56] Extruded polystyrene material is also used in crafts and model building, in particular architectural models. Because of the extrusion ...
The board can be sheet metal, fibre cement, magnesium oxide board (MgO), plywood or oriented strand board (OSB), and the core can either be expanded polystyrene foam (EPS), extruded polystyrene foam (XPS), polyisocyanurate foam, polyurethane foam, or be composite honeycomb (HSC).
Production of extruded polystyrene foam board named "Kanelite Foam" began in Kaneka Belgium. In 1971, Kaneka Americas founded "Kanepearl" plant. In 1972, the company developed polystyrene paper, [ citation needed ] while development and commercialization of production for flame-retardant ABS resin "Enpurekkusu" started in Osaka factory.
Polystyrene (expanded polystyrene (EPS) and extruded polystyrene (XPS)) Closed-cell polyurethane White or yellow. May use a variety of blowing agents. Resistant to water wicking and water vapor.: An example of a commercial closed-cell polyurethane product:
Extruded expanded polystyrene (XPS) high-density 2.54: 1 0.88–0.95: 5–5.4: 26–40 [3] Polystyrene board [6] 2.54: 1 0.88: 5.00: 35 Phenolic rigid panel 2.54: 1 0.70–0.88: 4–5: 28–35 Urea-formaldehyde foam 2.54: 1 0.70–0.81: 4–4.6: 28–32 High-density fiberglass batts 2.54: 1 0.63–0.88: 3.6–5: 25–35 Extruded expanded ...
Stacked blocks of geofoam at a construction site. Geofoam is expanded polystyrene (EPS) or extruded polystyrene (XPS) manufactured into large lightweight blocks. The blocks vary in size but are often 2 m × 0.75 m × 0.75 m (6.6 ft × 2.5 ft × 2.5 ft).
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