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Metal adhesives

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Tra-Con Tra-Bond FDA25 Food and Drug Application Epoxy Adhesive
Categories: Polymer; Adhesive; Thermoset; Epoxy

Material Notes: TRA-BOND FDA-25 is a medium viscosity epoxy resin system specifically developed for bonding and coating applications in accordance with Title 21, U.S. Code of Federal Regulations, Food and Drug Administration Chapter 1, Sub Part B, Sections 175.105 and 175.300. This two-part adhesive is commonly used for bonding, laminating and repair applications by manufacturers of food preparation, processing and packaging equipment, and by manufacturers of catheters, hearing aids, dental products and other biomedical instruments and devices. TRA-BOND FDA-25 is an effective electrical insulator, and it provides low permeability to gases and vapors and good resistance to water, weather, galvanic action, to petroleum solvents, lubricants and fuels, to mild acids and alkalis, and to many other organic and inorganic compounds.

Information provided by Tra-Con Inc.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.10 g/ccMixed
Volatile Organic Compounds (VOC) Content 7.12 g/l
Water Absorption 0.16 %After 24 hours
Viscosity 28500 cP
@Temperature 25.0 °C
Mixed (rv #6, 10 rpm)
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 82
Adhesive Bond Strength 2400 psiLap shear, alum to alum, 1 hr @ 65°C
 2650 psiLap shear, alum to alum, 4 hrs @ 65°C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 89.9 µm/m-°CBelow Tg
 218 µm/m-°CAbove Tg
Maximum Service Temperature, Air 140 °C
Minimum Service Temperature, Air -70.0 °C
Glass Transition Temp, Tg 125 °CUltimate Tg
 
Processing PropertiesOriginal ValueComments
Cure Time 1.00 - 4.00 hour
@Temperature 65.0 °C
 72.0 hour
@Temperature 25.0 °C
Pot Life 25 min100 grams
 30 min25 grams
 
Compliance PropertiesOriginal ValueComments
FDA Yes
 
Descriptive Properties
Color Black
Mix Ratio, parts by weight100/23Resin/Hardener
Thixotropic Index 25 rpm/50 rpm

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PTRAC263 / 71191

Metal adhesives

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