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soft coatings

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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001278
EISBN: 978-1-62708-170-2
... ) usually gives adequate flexibility, but the coatings are soft and do not possess good tensile strength. By raising the T g of the acrylic polymer to improve hardness, the coating becomes too brittle to be useful over flexible substrates. Usually a modification is required that involves introducing some...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006044
EISBN: 978-1-62708-172-6
... phase. A simple approach to this is a blend of hard and soft latex polymers. Particles with multiple lobes have also been prepared. The multilobe morphology imparts unique rheology to the coatings formulations, because the lobed particles sweep out a higher effective volume than spherical particles as...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006050
EISBN: 978-1-62708-172-6
... unpainted surfaces. Sacrificial coatings include acrylic and wax-based materials that are removed by pressure washing, taking the graffiti with it. After removal, the soft coatings are reapplied. More-permanent solutions include solventborne and waterborne polyurethanes that can resist aggressive cleaning...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003844
EISBN: 978-1-62708-183-2
... application purposes. Upon drying and curing, the solvent must volatilize from the coating into the atmosphere in a timely manner. If sufficient solvent volatilization does not occur and solvent is retained in the film, the coating may remain soft and plasticized, because the relatively large solvent...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001316
EISBN: 978-1-62708-170-2
... Chinese porcelains. Glaze 3 is a sanitaryware glaze ( Ref 5 ). It is derived from the soft paste porcelain glaze by the addition of ZnO in large quantities. Bristol glaze (glaze 4) is used to produce an opaque white coating on stoneware and other dark-colored bodies. Fast-fire wall tile glazes are...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006047
EISBN: 978-1-62708-172-6
... unique viability in certain applications, and some recent use has been noted. The resin blend component of an aromatic-based polyurea system is the more complex component of the system. The resin blend uses soft-block and hard-block segments for the reactive constituents. The soft-block segments are...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001282
EISBN: 978-1-62708-170-2
... occasionally used with soft materials such as tin, zinc, and babbitt to produce a smooth, dense bearing surface. Table 4 Typical ranges of speeds and feeds used in machining thermal sprayed metal coatings Coating metal High-speed steel tool Carbide tool (a) Speed Feed Speed Feed m/s sfm...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006038
EISBN: 978-1-62708-172-6
... hard objects. Pipeline coating systems exhibit a broad range of physical characteristics. They can be hard or relatively soft; they can be thick or thin; they can contain single or multiple layers. Regardless of these characteristics, all coating system configurations are prone to some form of...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005656
EISBN: 978-1-62708-198-6
... for multiple decades. In the late 1940s, porous materials to fill soft tissue defects were explored. During the 1950s, analysis was performed on porous polyvinyl sponges, initially investigated as soft tissue implants, for use in bone reconstruction and in augmenting autogenous grafting ( Ref 3...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006028
EISBN: 978-1-62708-172-6
... cabinets, and automotive interior coatings. Use levels range from additive (0.5%) levels to formulations using the silicone elastomer as the primary binder. Benefits include improved water resistance, flexibility, antiblocking, matting, and soft-feel texturizing. The synergies of SBT and organic polymers...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006011
EISBN: 978-1-62708-172-6
... temperature of the soft segment, the type and amount of any coalescing agent or solvent used, the application conditions, and the film thickness ( Ref 3 ). Water-based coatings are capable of providing similar performance to solvent-based coatings; however, solvent-based coatings are preferred in...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006029
EISBN: 978-1-62708-172-6
... excellent thermal and ultraviolet (UV) radiation resistance, their physical properties are less than ideal for the protective coatings market: silicone resins formulated to be hard and abrasion resistant are typically inflexible and brittle; soft and flexible silicone resins are easily abraded. The chemical...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001272
EISBN: 978-1-62708-170-2
... 2 Ca+Mg Very low Very good Very low Sea water O 2 +CO 2 +Cl Mg+Ca Low Very good Moderate Soft water, with free air supply O 2 +CO 2 … High Good High Soft or distilled, with poor air supply O 2 … Very high Very poor Very high Note: The different compositions of the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003217
EISBN: 978-1-62708-199-3
... characteristics °C °F Eta (η) Zinc 0.03 419 787 Hexagonal 70–72 Soft, ductile Zeta (ζ) FeZn 13 5.7–6.3 530 986 Monoclinic 175–185 Hard, brittle Delta (δ) FeZn 7 7.0–11.0 530–670 986–1238 Hexagonal 240–300 Ductile Gamma (Γ) Fe 3 Zn 10 20.0–27.0 670–780 1238–1436 Cubic...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006009
EISBN: 978-1-62708-172-6
.... Tetrabromophthalic anhydride Flame-retardant systems Adipic acid Soft resins Sebacic acid Soft resins o -carboxy phthalanilic acid … Unsaturated acids and anhydrides Maleic anhydride Most common Fumaric acid Copolymerizes better with styrene than maleic anhydride Itaconic acid...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006037
EISBN: 978-1-62708-172-6
... and chemical-resistance properties. Fig. 17 Urethane chemistry. Polyol + isocyanate reaction to create urethanes. Urethane groups form hard segments, while polyol midblocks form soft segments to give elastomeric (rubberlike) properties. Courtesy of Loyd Burcham, Stonhard Fig. 18...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001325
EISBN: 978-1-62708-170-2
... that used for conventional air atomization. The difference is that the guns are constructed with special air and fluid nozzles that allow the coating to be atomized at low air pressures and velocities. This creates a soft spray effect that produces higher transfer efficiencies, usually 60 to 70...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006013
EISBN: 978-1-62708-172-6
... in a catastrophic failure of the coating system and requiring full removal and replacement. Fig. 7 Undercatalyzed epoxy film. Coating chip is expected to be stiff and rigid but here is soft and pliable, folding over the support bar. Coating applied off-ratio (undercatalyzed) through a plural...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006040
EISBN: 978-1-62708-172-6
... extremely low-alkalinity (acidic), low-hardness (soft) water, which promotes aqueous-phase carbonation that can cause cement paste dissolution, exposing coarse aggregate and ultimately the reinforcing steel. Such situations are rare, and even when liquid-phase carbonation occurs, the reaction compounds...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001280
EISBN: 978-1-62708-170-2
... Table 10 Descaling of stainless steels and heat-resisting alloys before ceramic coating Alloy Immersion time, min Solution 1 Sodium hydroxide (a) Solution 2 Sodium hydride (b) Solution 3 Nitric-hydrofluoric acid (c) Solution 4 Nitric acid (d) 410, 430 1–2 10–30 None 5...