LOCTITE EA 9313

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

LOCTITE EA 9313

Main features

  • Flexible Cured Adhesive
  • 0.6 to 1.5 Pa s Mixed Viscosity
  • 60-Minute Working Window

Product Description

LOCTITE EA 9313 AERO is a two-component epoxy paste adhesive formulated for flexible bonds in aerospace and industrial assemblies. Its mixed viscosity of 0.6–1.5 Pa·s at 25°C provides a pourable consistency that can be injected into preassembled parts, while the cured adhesive supports bonding between dissimilar substrates. The system cures at room temperature and provides a 60-minute pot life at 25°C. Typical performance on phosphoric-acid-anodized 2024-T3 AlClad aluminum includes 31.0 MPa tensile lap shear and 267 N/25 mm floating-roller peel at 25°C after a five-day room-temperature cure. The product may also be used as a laminating resin and for potting small assemblies.

Key features

  • Flexible cured bondline: Supports bonded joints where substrate dissimilarity and peel loading are important evaluation factors.
  • Pourable mixed viscosity: 0.6–1.5 Pa·s at 25°C supports injection into preassembled parts.
  • Room-temperature cure: Develops normal performance after five days above 25°C, with accelerated cure options for small adhesive masses.
  • Controlled processing window: 60-minute pot life at 25°C for a 200 g mixed mass.
  • Mechanical performance: Typical lap shear reaches 31.0 MPa at 25°C and 28.9 MPa at −55°C on the tested anodized aluminum configuration.

Applications / Suitable for

  • Bonding dissimilar substrates
  • Injection bonding of preassembled parts
  • Laminating resin applications
  • Potting small assemblies
Product Family

LOCTITE EA 9313

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

TDS, SDS & Technical Documents

Technical Specifications

General Properties
ColorColor
Off white (Part A) / Red (Part B) / Pink (Mixed)
Density (g)Density (g)
1.09 (Mixed) g/cm3
Mix RatioMix Ratio
100:22 by weight
Physical Properties
Viscosity (Part A)Viscosity (Part A)
13,000 to 24,000 mPa.s
Viscosity (Part B)Viscosity (Part B)
25 to 45 mPa.s

Additional Information

Aerospace epoxy adhesive

LOCTITE EA 9313 AERO

A two-component, room-temperature-curing epoxy paste with a pourable mixed viscosity and a flexible cured bondline. The adhesive is suited to bonds requiring peel strength and low-temperature performance, including joints between dissimilar substrates, and it can be injected into preassembled parts.

Two-component epoxy paste 100:25 mix ratio by weight 60-minute pot life at 25°C Room-temperature cure Flexible cured bondline
LOCTITE EA 9313 AERO two-component epoxy adhesive product packaging

LOCTITE EA 9313 AERO two-component epoxy paste adhesive.

As-Supplied Properties

Mix ratio
100:25 by weight
Part A to Part B. A 3.5:1 volume ratio is also listed, but volume measurement is not recommended for structural applications without special ratio-control precautions.
Pot life
60 minutes at 25°C
Typical value for a 200 g mixed mass using ASTM D2471 in a water bath.
Property Value Unit Method / condition
Part A color Off-white As supplied
Part B color Red As supplied
Mixed color Pink Immediately after mixing
Part A viscosity 13–24 (130–240) Pa·s (P) 25°C; Brookfield HBT, spindle 3 at 20 rpm
Part B viscosity 0.025–0.045 (0.25–0.45) Pa·s (P) 25°C; Brookfield HBT, spindle 1 at 100 rpm
Mixed viscosity 0.6–1.5 (6–15) Pa·s (P) 25°C; Brookfield LVF, spindle 1 at 60 rpm
Part A density 1.11 g/mL As supplied
Part B density 1.01 g/mL As supplied
Mixed density 1.09 g/mL Mixed system
Peak exotherm 188 at 70 minutes °C 250 g mass; ASTM D2471 water-bath method
Application process

Processing and Cure

Use the specified component ratio, control mixed batch size, and maintain contact between the parts through the handling-strength stage. Cure time can be shortened by increasing temperature within the stated limits.

Surface preparation: Bonding surfaces should be clean, dry, and properly prepared before adhesive application.
Mixing and batch size: Combine Part A and Part B at 100:25 by weight and mix thoroughly. Do not mix quantities greater than 450 g; excessive heat buildup can cause uncontrolled decomposition and toxic fumes.
Application window: Pot life is 60 minutes at 25°C for a 200 g mass. Apply the mixed adhesive and hold the bonded parts in contact until handling strength is reached.
Handling strength: Typical time to exceed 500 psi lap shear is 8 hours at 25°C, 75 minutes at 38°C, 30 minutes at 60°C, or 5 minutes at 93°C. Apply only small loads at this stage because full bond strength has not developed.
Full cure: Normal performance develops after five days above 25°C. For small adhesive masses, an accelerated cure may be used up to 82°C; one hour at 82°C gives complete cure.
Cleanup: Remove excess uncured adhesive from tools and the work area before it hardens, using a suitable solvent and the solvent supplier’s safety instructions.
Storage and Handling

Store Parts A and B between 0°C and 25°C in closed containers. Shelf life is 1 year below 25°C for each component. Part A may crystallize at 4°C or below; restore it by heating Part A to 49°C for 1–2 hours, cooling to ambient temperature, and hand-mixing with a spatula before combining with Part B. Keep the separate components near room temperature before mixing.

Cured material

Cured Material Properties

Typical bulk-resin properties. These values describe cured test specimens and are not bonded-joint design allowables.

Property Value Unit Method / condition
Tensile strength 45 MPa 25°C; 3.18 mm castings; ASTM D638
Tensile modulus 2,274 MPa 25°C; 3.18 mm castings; ASTM D638
Elongation at break 8.0 % 25°C; 3.18 mm castings; ASTM D638
Shore D hardness 80 25°C; cured bulk resin
Glass transition temperature 49 °C Cured bulk resin
Shear modulus, dry 889 MPa 25°C; cured bulk resin
Poisson’s ratio 0.36 Cured bulk resin
Compressive strength 62.3 MPa 25°C; 12.7 mm castings; ASTM D695
Compressive modulus 1,812 MPa 25°C; 12.7 mm castings; ASTM D695
Dielectric constant 3.86 1 kHz and 25°C; ASTM D150
Dissipation factor 0.012 1 kHz and 25°C; ASTM D150

Bond Performance

Typical bond data are specific to the stated aluminum substrate, surface preparation, cure, and test methods.

Tensile lap shear across test temperatures
Test temperature Typical value Unit Method
−55°C 28.9 MPa ASTM D1002
25°C 31.0 MPa ASTM D1002
60°C 6.2 MPa ASTM D1002
71°C 4.1 MPa ASTM D1002
2024-T3 AlClad aluminum, phosphoric-acid anodized per ASTM D3933; cured 5 days at 25°C; tested per ASTM D1002.
Floating-roller peel strength
Typical peel strength is 267 N/25 mm at 25°C.
2024-T3 AlClad aluminum, phosphoric-acid anodized per ASTM D3933; cured 5 days at 25°C; tested per ASTM D3167.
Defined service temperature
Service temperature is 49°C under the stated definition.
Defined as the temperature at which the adhesive retains 6.9 MPa tensile lap shear using ASTM D1002.
Application fit

Applications

The product can be evaluated for flexible bonding and low-viscosity application tasks supported by the specified mix and cure process.

Flexible adhesive bond between dissimilar substrates
Bonding dissimilar substrates
The flexible cured adhesive is suitable for bonds between dissimilar substrates where bondline flexibility and peel response are important evaluation factors.
Adhesive injected into a preassembled component joint
Injection into preassembled parts
The pourable mixed viscosity supports injection into accessible joints in preassembled parts, subject to geometry, surface preparation, and process validation.
Epoxy adhesive used for lamination and small assembly potting
Laminating and small-assembly potting
The mixed system may be used as a laminating resin and for potting small assemblies using the documented ratio, batch-size, and cure controls.
Next steps

Evaluate LOCTITE EA 9313 AERO for your bonding process

Contact Krayden to discuss substrate preparation, mixing and cure conditions, batch-size controls, handling strength, or performance data for your assembly.

Leading Brands Trust in Our Products and Services

  • Jabil
  • Linxens
  • Magna
  • Medtronic
  • NXP
  • Philips
  • Semikron
  • Teledyne
  • Thales
  • Vishay
  • ZF
  • AMS
  • Apple
  • Audi
  • Broadcom
  • Borgwarner
  • Bosch
  • Eaton
  • Henkel
  • Honeywell
  • Hysol
  • Intel
Products that Perform|Knowledge that Serves|Service that Delivers