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Hysol ®9460 
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Epoxy Adhesive 


Description
Hysol 9460 is a thixotropic, modified, two component epoxy adhesive formulated for ease of use as well for a good balance of properties. This adhesive couples high peel strength and excellent sheer strength in a smooth, non-sag paste that is easily dispensed. Hysol 9460 features a 1:1 mix ratio by weight and volume and has a long work life with a quick heat response. The tough, flexible nature of this structural adhesive makes it useful for bonding dissimilar substrates including metals, engineering thermoplastics and thermoset laminates such as sheet molding compound (SMC) without the use of primers.

Features
Excellent Peel Strength                         Excellent Tensile Sheer Strength         Resistant to Automotive Fluids
Impact and Fatigue Resistant               Non-Sag /Slump Resistant                Easily Mixed/Easily Dispensed
Long Work Life                                     Quick Heat Cure Response
                                                                                         
Typical  Properties
                                                                                        Part A                     Part B                  Mixed
Color                                                                               White                      Black                   Grey
Viscosity, Poise @ 77oF                                                 1500-3000               1000-2500           1500-2500
Specific Gravity                                                                1.35                         1.31                      1.33
Density, Lbs/Gal                                                            11.3                         10.9                      11.1

Handling
Mixing: Hysol 9460 requires mixing Part A and Part B together just prior to the application. Complete mixing is necessary.
                                                                                        Part A                     Part B
By  weight                                                                       100                          100  
By volume                                                                       1                              1

Pot life, 250 grams                               40-50 minutes
Peak Exotherm, 250 grams                 200oF

Application
Mixing – Bulk: Combine Part A (resin) and Part B (hardener) in the correct ratio and mix thoroughly. Continue to mix until all white and black streaks are gone and mix is uniformly gray. This is important! Heat build-up during or after mixing is normal. Do not mix quantities greater than ten pounds as excessive exotherm or heat build-up will develop. Mixing smaller quantities will minimize the heat build-up.

Mixing – Cartridges: Place cartridge in proper dispenser. To begin using a new cartridge, remove cartridge cap and dispense a small amount of adhesive, making sure Part A and Part B are extruding. Attach nozzle and dispense approximately 1-2" before applying onto the part being bonded. Partially used cartridges can be stored with mixing nozzle attached. To reuse, remove and discard the old nozzle, attach new nozzle and begin dispensing.

Application: Bonding surfaces should be clean and dry. For optimum surface preparation, consult Dexter's bulletin "Preparing the Surface for Adhesive Bonding". The bonded parts should be held in contact until the adhesive is set. It not necessary to maintain fixturing for the entire cure schedule but only until handling strength is achieved.  

Cure: Hysol 9460 can be cured by a variety of cure schedules to meet processing requirements. 9460 will achieve handling strength in 6-8 hours at room temperature (note: this can vary with different bond configurations and ambient temperatures).  Full cure time at  77oF is 3 days.  After 24 hours, approximately 90% of full cure properties are attained. Heat cures up to 300oF can be used to reduce time. Graphs on the following page indicate alternative heat cure schedules which can be used to achieve a desired degree of cure from handling strength to full cure.

Clean up: It is important to remove excess adhesive from the work area and application equipment before it hardens. Many common solvents and citrus cleaners are suitable for removing uncured adhesive. Consult with your solvent supplier for information pertaining to the safe and proper use of solvents.

Performance
Tensile Lap Shear Strength             Tested after 3 day cure @ 77oF
Substrate                                                 Bondline                        Test                       Typical                  Failure
                                                                 Thickness, Mils              Temp, oF             Results                 Mode
Metals (per ASTM D1002)
Aluminum

Heated Fixture Strength: Tensile Lap Shear Strength at 77oF tested per ASTM D3163 on 1/10" thick profile automotive grade SMC specimens with 30 Mil bondline. Heated fixture test specimens equilibrated for 10 minutes at room temperature.

Substrate                                           Cure Schedule                     Test Temp, oF                  Strength, psi               Failure Mode
Low Profile Automotive                 2 min. @ 275oF                  77                                       600                               Fiber Tear
Grade SMC                                       4 min @ 250oF                   77                                       300                               Fiber Tear

Peel Strength: Floating roller peel strength on etched aluminum tested per ASTM D3167 and T-peel strength on etched aluminum tested per ASTM D1876.

Peel Test                                           Cure Strength                       Test Temp, oF                   Peel Strength, PLI
Floating Roller Peel                          3 days @ 77oF                      77                                       30
                                                                                                        -67                                       25

Floating Roller Peel                         Overnight @ 77oF                77                                       40
                                                        +60 minutes @ 250oF          -67                                       30

T-Pee                                                l3 days                                     77                                       20
                                                                                                         -67                                       15

T-Peel                                               Overnight @ 77oF                 77                                       25
                                                         +60 minutes @ 250oF          -67                                       20

Bulk Properties
Tensile strength                                 4400 psi @ 77oF
Tensile Modulus                               400,000 psi @ 77oF
Elongation at Break                           3.5% @ 77oF
Hardness (Shore D)                           80 @ 77oF
Glass Transition (Tg)                        155oF

Packaging
50 ml, 200 ml and 400 ml EPS Cartridges Quart, One Gallon, Five Gallon and Drum Systems