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Significance and Use
The purpose of this classification system is to provide a method of adequately identifying silicone adhesives and sealants through the use of a line call-out designation.
This classification system was designed to permit the addition of property values for future silicone adhesives and sealants.
1.1 This classification covers silicone adhesives and sealants intended for but not limited to sealing and retaining metallic and nonmetallic component assemblies in transportation applications. The materials cure to an elastomeric state by their specified cure system and mechanism.
Note 1—The classification system may serve many of the needs of industries using silicone materials. This classification is subject to revision, as the need requires; therefore, the latest revision should always be used.
1.2 This classification is intended to be a means of classifying silicone materials. It is not intended for engineering design purposes.
1.3 It is not the intent of this classification to include pressure-sensitive or hot-melt adhesives.
1.4 In all cases in which the provisions of this classification system would conflict with the referenced ASTM standard for a particular method, the latter shall take precedence.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 The following safety hazards caveat pertains only to the test methods portion, Section 7, of this classification. 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.
C679 Test Method for Tack-Free Time of Elastomeric Sealants
D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension
D471 Test Method for Rubber Property--Effect of Liquids
D573 Test Method for Rubber--Deterioration in an Air Oven
D618 Practice for Conditioning Plastics for Testing
D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D907 Terminology of Adhesives
D1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading (Metal-to-Metal)
D1053 Test Methods for Rubber Property--Stiffening at Low Temperatures: Flexible Polymers and Coated Fabrics
D1084 Test Methods for Viscosity of Adhesives
D1349 Practice for Rubber--Standard Temperatures for Testing
D1415 Test Method for Rubber Property--International Hardness
D1566 Terminology Relating to Rubber
D1898 Practice for Sampling of Plastics
D2240 Test Method for Rubber Property--Durometer Hardness
D3182 Practice for Rubber--Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
D4800 Guide for Classifying and Specifying Adhesives
SAE StandardSAEJ369 Flammability of Polymeric Interior Materials--Horizontal Test Method
UL StandardUL94 Flammability
ICS Number Code 55.040 (Packaging materials and accessories); 71.100.55 (Silicones)
ASTM F2468-05(2011), Standard Classification for Specifying Silicone Adhesives and Sealants for Transportation Applications, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top