Glass flake

Polyester/glass-flake linings can be applied onsite because they cure at ambient temperature. Their corrosion resistance depends on the type of polyester resin used. 

Unsaturated polyesters, glass flake and fiber reinforced... 

Unsaturated polyesters The formation of the coating occurs in situ by the reaction between polyester resin and styrene, activated by a catalyst such as organic peroxide. The main use as coatings is in the formation of glass fiber or glass flake, reinforced plastics. 

Flakeglas copolymers with butadiene Glass flakes for reinforcements Owens-Corning Fiberglas... 

The Engelhard product based on calcium borosilicate glass flakes is said to give a star-like glitter to coatings. 

Pigments used in barrier coatings should also be hydrophobic in nature, and possess good adhesion across pigment-binder interfaces. Some typical pigments used are flat platey aluminum flakes, glass flakes, stailness steel flakes and micaceous iron oxide. 

Reinforced RIM (RRIM) elastomers are used. By the addition of reinforcing fillers such as milled glass fiber, glass flake, or mineral fillers in the polyurethane or short to long glass fiber in preforms, fabric, or mat forms placed in the mold cavity, the properties of the material can be altered to meet high performance requirements of the part (Chapter 15). The reinforced elastomers are used to increase flexural modulus, improve thermal properties, and improve dimensional stability.267... 

The mold in RRIM is similar to resin transfer molding (RTM) (Chapter 15). In the reinforced RIM (RRIM) process reinforcements such as woven or nonwoven fabrics, short glass fibers, glass flakes, milled fibers dry reinforcement preform, etc. are placed in a closed mold. Next a reactive plastic system is mixed under high pressure in a specially... 

It is also possible to formulate epoxy coatings by using glass flakes. This improves the abrasion resistance. Such coatings can be applied at a dft of between 1500 xm and 3000 xm (International Paints, 1996). 

It is impossible to achieve a dft between 400-500 xm in two coats without fibre glass reinforcement. In some laminate systems, glass flakes are also used as fillers. Their function is to minimise the shrinkage stress. 

Polyester coatings are suitable for concrete and steel substrates. The systems are generally used as laminates in conjunction with the use of glass cloth or glass flakes as the reinforcement. Polyester coatings are particularly useful in areas where resistance to mineral acids is required. Typical properties of polyester coatings are given in Table 9.2. 

Surface Quality. Class "A surface (after painting) is considered by the automotive industry as their first requirement for an exterior part. Comparing the surface quality of several reinforcements in RRIM urethane panels, it was found by visual examination that the best surface quality was the glass flakes and the worst was the integral chopped strands. Milled fiber is slightly worse than glass flakes, but it is still considered a "Class A" surface. 

Cermets, which are mixtures of ceramic and metal powders, heat treated and compressed. (4) Fabrics, e.g., woven combinations of wool or cotton and a synthetic fiber. (5) Filled composites in which a bonding material, i.e., linseed oil, resin, or asphalt, is loaded with a filler in the form of flakes or small particles examples are linoleum, glass flake-plastic mixtures for battery cases, and asphalt-gravel road-surfacing mixtures. 

Typical fillers calcium carbonate, talc, glass fiber, glass beads, glass flakes, silica flour, wollastonite, mica, sepiolite, magnesium hydroxide, carbon black, clay, metal powders (aluminum, iron, nickel), steel fiber, si-licium carbide, phenolic microspheres, wood fiber and flour, antimony trioxide, hydrotalcite, zinc borate, bismuth carbonate, red phosphorus, potassium-magnesium aluminosilicate, fly ash, hydromagnesite-huntite... 

Flakeglas. [Nyco Minerals] Chemically surface-n fied glass flake... 

Other resins, such as resorcinol and cashew nut resins, other acidic catalysts, such as p-toluene sulfonic acid and other aggregates, such as asbestos, glass flakes, and slag microfibers (PMF) have been substituted for the original ingredients but basically the formulations for the relatively widely used phenolic resin mortars have not changed radically during more than a half century of satisfactory use. 

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