Thermosetting Adhesives for Assembly Applications

Master Bond Inc. formulates a wide range of epoxy, silicone, polyurethane, and polysulfide adhesives for high performance and reliability. These compounds vary in thickness, viscosity, hardness, cure speed, strength, temperature and chemical resistance properties. They are successfully employed in industries ranging from aerospace, optical and electronics to oil/chemical processing, medical and automotive.

Specific grades offer:

  • Fast Room Temperature Cures
  • High Strength Bonds to Metals, Glass, Ceramics, Rubbers and Most Plastics
  • Wicking Properties
  • Optical Clarity
  • Thermal and Electrical Conductivity
  • Flexibility and Toughness
  • Corrosion Resistance
  • Low/Cryogenic and High Temperature Serviceability
  • Withstand Exposure to Many Chemicals and Water
  • UV Cures
  • NASA Low Outgassing Approval
  • Abrasion Resistance

adhesive bonding, glues, thermosetting adhesives

Some of Our Most Popular Thermosetting Adhesive Systems

Master Bond's popular thermosetting adhesive systems are given below.

   Product     Description
EP13 One part oven-cured system, (cures at 300°F) with excellent serviceability at higher temperatures, up to 500°F.
EP46HT-1 Two part, oven cured system with high-temperature resistance up to 550-600°F. Excellent adhesive properties and chemical resistant. Excellent strength retention at higher temperatures.
EP125 Specialty two part system requiring oven curing at 300-350°F; serviceable up to 500-550°F; removable resistance to chemicals also including some organic solvents.
EP30HT Two part, room temperature curing epoxy that is optically clear, high temperature resistant and meets NASA low outgassing requirements.
EP41S-1 Two component room temp cured epoxy system featuring outstanding chemical resistance to fuels, alcohols and organic solvents.

 

Advantages of Adhesive Bonding Over Alternative Assembly Techniques

The advantages of adhesive bonding over alternative assembly techniques are outlined in the following list:

  • Improved stress distribution; stresses are evenly distributed over the entire bonding area thereby minimizing high localized stress concentrations.
  • Outstanding fatigue resistance of adhesively bonded joints especially to cyclic loading.
  • Superior resistance to mechanical shock and vibration even upon prolonged exposure to hostile environmental conditions.
  • Ability to bond dissimilar as well as similar materials including metals, plastics, elastomers, glass, ceramics and wood.
  • Outstanding humidity and corrosion resistance at both ambient and elevated temperature conditions.
  • Superior thermal resistance.
  • Availability of adhesive formulations for a wide range of service conditions from as high as 600°F to cryogenic environments.
  • Adhesively bonded surfaces feature smooth contours free from gaps and external projections unlike rivets and other mechanical fasteners.
  • Less critical tolerances acceptable for high-performance bonding compared to mechanical fastening methods.
  • Substantial weight and significant cost savings without decrease of pertinent bonding strength parameters.
  • Unexcelled dimensional stability and long-term durability.
  • Techniques are available for disassembly of adhesively bonded assemblies without deleteriously affecting the individual components.

Important Thermosetting Adhesive Performance Requirements

Master Bond polymer adhesives are designed to meet specific performance requirements. Among the most important are:

  • Abrasion resistance
  • Chemically resistance
  • Cryogenically serviceable
  • Easily polished
  • Easily removed by water
  • Easily repairable
  • Electrically insulative
  • Excellent adhesion
  • Mechanical properties
  • Dimensionally stability
  • Optical transmission
  • High temperature resistance
  • Index of refraction
  • Low coefficient of expansion
  • Low outgassing
  • Reworkable
  • Low shrinkage
  • Low stress
  • Shock resistance
  • Non-yellowing
  • Resistance to water
  • Impact resistance
  • Screen printable
  • Spectral transmittance
  • Peel strength
  • Durability
  • Thermal cycling
  • Shock resistance
  • Thermal conductivity
  • Vibration resistance

Master Bond Thermosetting Adhesive Systems are Used in a Wide Range of Applications

Master Bond thermosetting adhesive systems are used in the following applications:

  • High load assemblies
  • Applications exposed to severe service conditions
  • Photovoltaic industry applications
  • Stacked foil thrust bearing assembly
  • Thrust bearing plates
  • Semiconductor assembly
  • Bonding and coating of critical electronic components
  • Composites
  • As a filler for oversized bolt holes
  • Highly stressed joints
  • Transmission bands
  • Core plates
  • Structural bonding applications
  • Small gap bonding in motor assembly
  • Electronics packaging manufacturing
  • Compressor fairing
  • Electrical circuits
  • Pipe fittings
  • Rocket motor component assembly
  • Industrial sink manufacturing
  • Encapsulation of electrical components
  • Potting of electrical components
  • Surgical devices
  • Assembly of oil, water, and selective chemical tanks
  • Pressure vessels
  • Glass reinforced polyester composites
  • Die attach applications
  • Printed circuit board applications
  • Gears
  • Insulators
  • Bonding of fuselage panels for aircraft
  • Wiring components
  • Switchboards
  • Compressors
  • Trim cover applications
  • Gas cryogenic machines
  • Manufacturing of valves
  • Vacuum bleeder valves
  • Film laminating applications
  • Fiber optic bonding
  • Optical replication
  • Fiber optic mounting
  • Fiber optic lens bundling and terminating
  • LCD laminations
  • Detector encapsulation
  • Medical needle assembly and bonding
  • Respiratory devices
  • Tracheotomy tube assembly
  • Resuscitator apparatus
  • Catheter bonding, sealing and assembly
  • Wire tacking and coating
  • Wire harness assembly
  • To prevent coils from unwinding
  • Bonding rigid fittings to flexible tubing
  • Reinforcing of ultra centrifuge rotors
  • Machinery base plates
  • Specialty alternator applications

adhesive bonding, glues, thermosetting adhesives

Packaged the Way You Need It

We offer a wide array of packaging options to speed productivity, minimize waste and save energy including:

  • Quantities from grams to gallons
  • Cans, bottles and jars
  • Cartridges for manual and pneumatic guns
  • Premixed and frozen syringes
  • Bipaks for field service kits

adhesive bonding, glues, thermosetting adhesives

Thermosetting Epoxy Adhesive

Master Bond's thermosetting epoxy adhesives are given below.

   Product     Description
EP30HT Two part, room temperature curing epoxy that is optically clear, high temperature resistant and meets NASA low outgassing requirements.
SUPREME 11HT Two part room temperature cured adhesive. Service temperature range -100°F to 400°F. High peel & shear strength. 1:1 mix ratio. Resistant to shock, vibration and impact.
EP17HTND-2 Two part, room temperature curing epoxy polysulfide system with excellent flow. Used primarily for potting, encapsulating and coating applications.

This information has been sourced, reviewed and adapted from materials provided by Master Bond Inc.

For more information on this source, please visit Master Bond Inc.

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