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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780131
EISBN: 978-1-62708-268-6
... on either mating surface, such as a scratch, gouge, or surface finish that is too rough. Contaminants caught between the gasket and the mating surfaces can allow a leak path. Sometimes, gaskets are used with sealants, and the sealant flows into minute gaps between the gasket and its mating surfaces...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780141
EISBN: 978-1-62708-268-6
... become a significant problem. In some systems, outgassing can actually insulate the contacts on an electrical switch. Chapter 13 discusses the adverse effects of contamination on epoxies and other sealants. Epoxies and sealants can be a contaminant in their own right if these materials migrate...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870307
EISBN: 978-1-62708-314-0
... and no more than three threads should be showing when the nut is installed and tightened to the proper torque. Fasteners exposed to the outer moldline of the aircraft are normally installed “wet” by dipping the end of the fastener in polysulfide sealant prior to installation. This practice helps to prevent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230441
EISBN: 978-1-62708-298-3
... of the joint, such as in mechanical properties and in peel resistance. Although sealants are generally not discussed in this book, it should be pointed out that sealants have many of the same characteristics as adhesives with respect to their molecular structures, storage limitations, surface preparations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... and pressures. In a typical bagging operation ( Fig. 6.3 ), the materials required include high-temperature polyimide bagging material, glass bleeder cloth, and silicone bag sealant. The polyimide bagging materials (for example, Kapton or Upilex) are more brittle and harder to work with than the nylon materials...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
.... Shear strength to 20 MPa (2900 psi), tensile strength to 40 MPa (5800 psi). Applications: sealant, structural assembly Modified acrylic: Two-component thermosetting adhesive consisting of acrylic-based resin and initiator/hardeners. Cures at room temperature after mixing. Shear strength to 34 MPa...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
... been drilled and reamed to their final sizes, the patch is removed and deburred. A layer of woven glass cloth is impregnated with sealant to provide both sealing and corrosion protection. The full-size holes in the patch are countersunk, and the patch is installed with either one-sided blind fasteners...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290001
EISBN: 978-1-62708-306-5
... Edition , 2nd ed. , ASM International , 1998 , p 1052 10.31399/asm.hb.mhde2.a0003205 1.5 Petrie E.M. , An Introduction to Adhesives and Sealants , Handbook of Adhesive and Sealants , McGraw Hill , 2000 , p 20 Selected References Selected References • Adhesives...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910301
EISBN: 978-1-62708-250-1
... crevices cannot be avoided, they should be sealed by welding, soldering, or by the use of caulking compounds or sealants. Fig. 8 Designs for preventing excessive turbulence. (a) Poor designs (both top and bottom figures). (b) Good designs (both top and bottom figures) Designing and planning...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... the basic part, on which extensions have been provided. The exposed edges of the bond joint should be protected with an appropriate sealer, such as an elastomeric sealant or paint. Source: Ref 7 8.4.1 Prekitting of Adherends Many adhesives have a limited working life at room...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870161
EISBN: 978-1-62708-299-0
... susceptible to stress-corrosion cracking (SCC). More detailed information on the joining methods discussed in this chapter can be found in Welding, Brazing, and Soldering , Volume 6, of the ASM Handbook; the ASM Specialty Handbook: Aluminum and Aluminum Alloys; and Adhesives and Sealants , Volume 3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030235
EISBN: 978-1-62708-282-2
... ( Fig. 7b) . Effective insulation can be useful if it does not lead to crevice corrosion. Some difficulties arise in the use of adhesives, which are not usually sealants. The relative surface areas of anodic and cathodic surfaces should not be underestimated, because corrosion at a small anodic zone...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730099
EISBN: 978-1-62708-283-9
... °F) and are resistant to sunlight, oxidation, and chemical attack. They have low toxicity. The uses of silicones include body implants, sealants for joints in construction, O-rings, and spatulas for cooking. Silicone greases for lubrication withstand higher temperatures than hydrocarbons. Fig...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060155
EISBN: 978-1-62708-355-3
... • Harrington W.F. , Elastomeric Adhesives , Engineered Materials Handbook , Vol 3 , Adhesives and Sealants , ASM International , 1990 , p 143 – 150 • Mark J.E. , Erman B. , and Eirich F.R. , Ed., Science and Technology of Rubber , 2 nd ed., Academic Press , 1994...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870045
EISBN: 978-1-62708-299-0
... should be filled with a resilient, moisture-excluding sealant. On thicker sections no provision need be made. Crevices in Waters In most fresh waters crevice corrosion of aluminum is negligible. In seawater, crevice corrosion takes the form of pitting, and the rate is low. Resistance to crevice...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
..., which might not be sealants. The relative surface areas of anodic and cathodic surfaces should not be underestimated, because instances of corrosion failure can result from a combination of galvanic and crevice attack. Corrosion in a small anodic zone can be several hundred times greater than...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870063
EISBN: 978-1-62708-299-0
... It was recommended that another marking process that does not involve corrosive materials be used. The prevention of electrolyte from being trapped between the tubing and ferrules by using a MIL-S-8802 sealant was recommended. IGC of 5<italic>xxx</italic> (Al-Mg) Alloys Aluminum-magnesium alloys (5 xxx...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780323
EISBN: 978-1-62708-281-5
..., detergents, gasoline, lubricants, and sealants, may seriously reduce the mechanical properties of plastics. It is therefore important for design engineers to consider the effects of environment on plastics. The most serious problems arise when a material is exposed to aggressive fluids under stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870063
EISBN: 978-1-62708-314-0
... and then sealing the edges with a polysulfide sealant. Fig. 3.12 Galvanic corrosion mechanism for imide linkage. Source: Ref 3 3.5 Cyanate Ester Resins Cyanate esters are often used in applications requiring low dielectric loss properties, such as antennas and radomes. They are potential...