Fiberglass production

By far the most common form of reinforcement is fiberglass. Products using unsaturated polyester resin as a matrix and fiberglass fiber reinforcements are commonly referred to as composites , laminates or FRPs (fiber-reinforced plastics). The latter reinforcements are sold as continuous roving, which is continuously chopped in place with a liquid resin stream, chopped roving mat, woven... 

Fiberglass Reinforced Piping Systems for Chemical and Industrial Applications, Smith Fiberglass Products, Inc., Litde Rock, Ark., 1993 to 1994. 

As the war drew to a close, Owens-Corning began to plan for peacetime uses of its fiberglass products. In 1946, it introduced fiberglass-reinforced fishing rods, serving trays, acoustical tiles, and pleasure boats. And in 1953, it announced production of the first commercial automobile, the Chevrolet Corvette, with a body made entirely of polymer matrix composite, a fiberglass reinforced plastic. 

Although pressed wood products may be a source of formaldehyde in indoor air, there are numerous others. These include permanent press fabrics, fiberglass products, decorative laminates, paper goods, paints, wallpaper, and cosmetics (Kelly et al. 1996). Its presence in indoor air also results from combustion sources, such as stoves, heaters, or burning cigarettes (Matthews et al. 1985 NRC 1981). 

During projection of fabrication high strength radioparent fiberglass product s technological process appears a task of choice of optimum cross-linked polymer matrix, which has combination of as much as possible isotropic and stable radioparence... 

PPG Fiber Glass, 2010. (Online) Available at bttp //www.ppg.com/glass/fiberglass/products/ documents/2001 rev42008. pdf. 

The only question about their use is for applications above the binder oxidation temperature of 400 to 500°F (205 to 260°C). Most manufacturers rate their products above the binder temperature and are confident of their performance due to the long glass fiber matrix. However, there are certain applications that combine severe vibration with high temperature. In such cases, fiberglass products, like mineral wools, may tend to sag on the pipe and lose some of their thermal efficiency. 

In the example depicted in the logic tree in Figure 5.2, a site had a complete failure of the bottom of a fiberglass product tank and a resulting spill of product. The logic dialogue would have been ... 

No attempt should be made to apply fiberglass products (Flexi-Wall Systems, 1990) over large gaps or holes, since the product could be easily punctured, reexposing lead coatings underneath. Similarly, fiberglass products should not be applied over badly deteriorated surfaces, such as exposed brown-coat plaster unless repairs are first undertaken. The mastic coating will not adhere to the brown coat. 

A test patch should be made before applying fiberglass products, and the test patch should be thoroughly cured (resins must be completely dried or reacted) according to the manufacturer s instructions. If attempts to remove the test patch yield only very small pieces, then acceptable cohesion and adhesion have been achieved. 

Casting can also be done with some thermoplastic materials, but it requires heat and some use of pressure. The pressure may be applied by centrifugal force, or an external pressure source. Resin casting is used to make all kinds of fiberglass products, and is often used to produce dolls, toy models, and other collectibles. Unit cost per finished product is usually higher than other molding technologies. Production quantities are usually low (at least per mold). 

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