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Chipping resistance

Although plaster has been a very successful and serviceable material, it is seriously lacking in hardness, edge strength, chip resistance, abrasion resistance, and strength to fulfiU many needs of dentistry. Some of these requirements have been partially filled by the development of the type III and type IV plasters. Table 3 Hsts the compression strength of dental plasters. [Pg.476]

In formulating holloware enamels the degree of acid resistance required is less than for chemical plant, e.g. reaction vessels, and consequently the RO2 (Si02 and Ti02) is lower thus permitting increased quantities of fluxes to be incorporated which confer improved workability . Furthermore, they can be fired at lower temperatures and have superior chip resistance. Conversely, chemical plant enamels are higher in silica and dissolved titania and require harder firing. An example of such an enamel is shown in Table 16.1. [Pg.741]

Tear/Chip resistance Poor Poor Poor Good... [Pg.277]

A primer surfacer, composed most often of a polyester to be cross-linked with a blocked isocyanate or melamine cross-linker, is applied next at a dry film thickness of approximately 1.0 mil by conventional spray application. The function of this coating is to provide filling and leveling properties as well as some stone-chip resistance. Cure conditions range from 250 to 325°F for 20 min. [Pg.1301]

The solvent-borne clear-coat is spray-applied over the basecoat at a dry film thickness of 1.8-2.0 mils. The clear-coat, responsible for UV protection, chemical resistance, chip resistance, and so on, is most often composed... [Pg.1301]

Impact DIN 53 453 (ball weight) ASTM D-27094 (chip resistance) ASTM D-3170... [Pg.235]

Despite the introduction of synthetic elastomers, ceramics and other abrasion resisting metals such as manganese, natural rubber holds a dominant position in this field of application and is the primary choice for abrasion resistance. Synthetic rubbers (particularly styrene-butadiene rubber which is dominant in the tyre industry sector) are used in dry abrasion application such as general purpose abrasion resistant sheets and conveyor belt covers, since the rubber can be reinforced with fine particles of carbon blacks to achieve dry abrasion resistance close to that of natural rubber. It should be noted that styrene-butadiene rubber is inferior to natural rubber in cutting and chipping resistance. [Pg.31]

Low surface tension causes excellent wetting of substrate which is required for good adhesion of the coating to the surface. Good adhesion promotes good corrosion resistance, impact resistance, and chip resistance. [Pg.667]

Surfacers are mainly produced from low molecular mass polyester resins cross-linked with amino resins. Blocked polyisocyanate resins may also be used for high stone chip resistance. Water-soluble polyester resins are increasingly used for water-thinnable stoving surfacers. Spray and dip paints based on polyester resins are used to coat automobile accessories (e.g., windscreen wipers, axle parts). [Pg.55]

Chem. Descrip. Fatty acid-modified polyester PU resin (45%) in water/N-methyl pyrrolidone, neutralized with dimethyl ethanolamine Uses Polyester for highly flexible aq. stoving systems, e.g., stone chip-resist. primer surfacers for on-line automotive finishing Features Rec. in combination with water-thinnable amino resins Properties Ylsh./brnsh. cloudy appearance 45 015 nm mean particle size sol. in water, alcohols, glycols, glycol ethers dens. = 1.1 ml (20 C) vise. 200-2000 mPa-s-(23 C) add no. 13 02 pH 7.25 00.75 (1 3 in DW) equiv. wt. = 1417 anionic 4501%NV Bayhydrol PR 135 [Bayer AG]... [Pg.106]

Uses Polyester improving stone chip resist, in automotive OEM base coats... [Pg.734]

Chem. Descrip. Sat. polyester resin in xylene/butanol solvents (85/15) Uses Polyester giving good chip resist., high hardness in automotive OEM primers... [Pg.734]

Setamine 19-3132 Setamine 19-3136 chip resistance aid, stone automotive... [Pg.1467]

Recent developments by DuPont in high performance car tyres have shown that inclusion of para-aramid as Kevlar EE, which is a pre-dispersed form of Kevlar pulp, in the rubber sidewall apex increases stiffness and improves cornering efficiency. The apex is part of the located radially outward of the tyre s bead (see Fig. 11.1 (a) and (b)). The EE stands for Engineered Elastomer and DuPont has introduced Kevlar EE into beltings, seals and gaskets, and bicycle tyres to improve resistance to abrasion, tear and puncture, modulus, and cut and chip resistance. ... [Pg.332]

Cy to Cji phthalate (Palatinol 711) in chip-resistant, vibration-damping, automotive coatings ... [Pg.434]

Saleh O A, Sohn LL (2002) Correcting off-axis effects in an on-chip resistive-pulse analyzer. Rev Sci Instrum 73 4396. doi 10.1063/1.1519932... [Pg.1157]

See other pages where Chipping resistance is mentioned: [Pg.162]    [Pg.206]    [Pg.423]    [Pg.466]    [Pg.486]    [Pg.801]    [Pg.1028]    [Pg.490]    [Pg.423]    [Pg.466]    [Pg.306]    [Pg.157]    [Pg.195]    [Pg.206]    [Pg.1301]    [Pg.1303]    [Pg.694]    [Pg.2405]    [Pg.49]    [Pg.40]    [Pg.1019]    [Pg.1020]    [Pg.162]    [Pg.160]    [Pg.160]    [Pg.246]    [Pg.461]    [Pg.689]    [Pg.1467]    [Pg.433]    [Pg.433]    [Pg.434]   
See also in sourсe #XX -- [ Pg.256 ]



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