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Hysol ® 9430
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Epoxy Adhesive 
. 
Description
Hysol 9430 is a modified epoxy adhesive that attains structural properties after room temperature cure. This two-part adhesive is formulated to give very high peel strength coupled with excellent shear strength. Bonds are permanently flexible and resist water, salt spray and many common industrial fluids.  The tough, flexible nature of this adhesive makes it useful for bonding dissimilar substrates and for assemblies requiring bondline thickness up to one-tenth inch.

Features
High peel and shear strengthRoom temperature cure
Bonds variety of substratesLong pot life
Excellent low temperature properties

Typical Properties
                                                                          Part A                         Part B                         Mixed
Color                                                                 Cream                         Tan                             Off-white
Viscosity @ 77°F, poise                                   200,000- 400,000        40                               12,000
Brookfield HBT                                               Spdl 7 @ 20 rpm       Spdl 1 @ 20 rpm       Spdl 4 @ 20 rpm
Specific Gravity @ 77°F                                   1.15                             1.00                             1.12  
Pounds per gallon                                            9.6                               8.3                               9.3
Shelf Life @ 77°F                                             1 year                           1 year                          N/A

Handling
Mixing : This product requires mixing two components together just prior to application to the parts to be bonded. Complete mixing is necessary.

Mix Ratio                                                                    Part A              Part B
By Weight                                                                   100                   23
By Volume                                                                 4                       1
Pot Life, (250-gram mass)
        as determined by a Gardener Gel Timer         50 minutes
Peak Exotherm, (250-gram mass)              370°F @ 60 minutes                              

Application
Mixing: Combine Part A and Part B in the correct ratio and mix thoroughly. THIS IS IMPORTANT! Heat buildup during or after mixing is normal. Do not mix quantities greater than ten pounds (10 lbs.), as excessive heat buildup can occur.  Mixing smaller quantities will minimize the heat buildup.

Applying: Bonding surfaces should be clean and dry and properly prepared. 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 is not necessary to maintain fixturing for the entire cure schedule, only until handling strength is achieved. Hyandling strength of 500 psi is achieved in 6-8 hours @ 77°F.

Curing: Hysol 9430 can be cured for 5 days at room temperature (77°F). Curing temperatures up to 180°F can also be used to reduce cure time. For example, 1 hour @ 180°F will give complete cure.

Cleanup: It is important to remove excess adhesive from the work area and application equipment before it hardens. Denatured alcohol and many common solvents are suitable for removing uncured adhesive. Consult with your supplier's information pertaining to the safe and proper use of solvents.

Performance
Tensile Lap Shear Strength
Tensile lap shear strength was tested on etched aluminum per ASTM D1002 after curing for 5 days at 75°F on 1"x 0.5" overlap speciman.

Substrate                                       Test Temp. °F                           Typical Results, psi
Etched Aluminum                       77                                                4700
                                                      -67                                               5000
                                                      140                                              1700
                                                      180                                              750
Degreased Aluminum                 77                                                3500
FRP                                               77                                                1400
                                                                                                         (substrate failure)
Bonderized Steel                           77                                               2400
Mineral Filled PET                       77                                               850
Polycarbonate                                77                                               1500
Etched aluminum after environmental exposures:
30 day salt spray                            77                                               4000
30 day @ 120°F, @                      77                                                3700
100% relative humidity

Peel Strength
Floating roller peel tested per ASTM D 3167 at a crosshead speed of six inches per minute
Substrate                                     Test Temperature, °F               Peel Strength, pli
Etched Aluminum                       77                                                60

Bulk Properties
Tensile properties tested at room temperature on 0.125 inch castings per ASTM D 638
Tensile strength, psi                    5300
Tensile modulus, psi                  380,000
Elongation @ break, %              6.0
Shore D hardness                        75
Shear modulus, ksi                      130
Poissons ratio                               0.35