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Significance and Use
Durable adhesive bonds of composite laminates can be obtained reliably only through proper selection and careful control of the materials used and the steps in the bonding process. The preparation of the composite laminates to obtain surfaces with appropriate characteristics is a critical step. Improper surface preparation can produce seemingly acceptable bonds that can degrade rapidly with time. This practice describes how properly prepared surfaces can be obtained.
The formation of reproducible, durable, adhesive bonds in structural units requires great care in the selection of materials, the preparation of the surfaces of the parts to be bonded, the fit of parts, and the performance of the steps in the bonding process. Experience has shown that adhesive bonding carried out in accordance with this practice produces reproducible bonds.
1.1 This practice covers the materials, processes, and quality controls to be used in the manufacture of durable adhesive bonded, nonmetallic faced, flat sandwich panels for rigid wall relocatable shelters.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C297/C297M Test Method for Flatwise Tensile Strength of Sandwich Constructions
E865 Specification for Structural Film Adhesives for Honeycomb Sandwich Panels
E990 Specification for Core-Splice Adhesive for Honeycomb Sandwich Structural Panels
E1091 Specification for Nonmetallic Honeycomb Core for Use in Shelter Panels
Federal StandardFEDSTD209 Clean Room and Work Station Requirements
Society of Automotive Engineers (SAE) StandardSAE-AMS-S-8802 Sealing Compound, Temperature-Resistant, Integral Fuel Tanks and Fuel Cell Cavities, High-Adhesion
Military HandbookMIL-Handbook337 Adhesive Bonded Aerospace Structures
ICS Number Code 79.060.01 (Wood-based panels in general)
UNSPSC Code 30162400(Partition walls); 30103500(Honeycomb core)