Henkel Hysol EA9323 Tough High Strain Paste - Quart

Mixing

This product requires mixing two components together just prior to application to the parts to be bonded. Complete mixing is necessary. The temperature of the separate components prior to mixing is not critical, but should be close to room temperature (77°F/25°C).

Mix Ratio (by weight):
Part A: 100
Part B: 45

NOTE: Volume measurement is not recommended for structural applications unless special precautions are taken to assure proper ratios.

Pot Life (450 gm mass): 30 minutes

Method - ASTM D 2471 in water bath.

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 450 grams as dangerous heat buildup can occur causing uncontrolled decomposition of the mixed adhesive. TOXIC FUMES CAN OCCUR, RESULTING IN PERSONAL INJURY. Mixing smaller quantities will minimize the heat buildup.

Applying

Bonding surfaces should be clean, dry and properly prepared. For optimum surface preparation consult the Hysol Surface Preparation Guide. The bonded parts should be held in contact until the adhesive is set. Handling strength for this adhesive will occur in 24 hours (>77°F/25°C), after which the support tooling or pressure used during cure may be removed. Since full bond strength has not yet been attained, load application should be small at this time.

Curing

Hysol EA 9323 may be cured for 5 to 7 days @ >77°F/25°C to achieve normal performance. Accelerated cures up to 200°F/93°C (for small masses only) are used as an alternative. For example, 1 hour @ 180°F/82°C 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 industrial solvents are suitable for removing uncured adhesive. Consult with your supplier’s information pertaining to the safe and proper use of solvents.

BOND STRENGTH PERFORMANCE

Tensile Lap Shear Strength
Tensile lap shear strength tested per ASTM D1002 after curing for 5 days @ 77°F/25°C. Adherends are 2024-T3 Alclad aluminum treated with phosphoric acid anodized per ASTM D3933.

* Test Temperature, 77°F/25°C

Peel Strength
Bell peel strength (ASTM D3167) tested during curing for 5 days @ 77°F/25°C. Adherends are 2024-T3 bare aluminum treated with chromic acid etch (ASTM D2651).

Service Temperature

Service temperature is defined as that temperature at which this adhesive still retains 1000 psi (6.9 MPa) using test method ASTM D1002 and is 250°F/121°C.