3M™ Scotch-Weld™ Structural Adhesive Film AF 126 and AF 126 FR must be stored

at 0°F (-18°C) or lower. Allow these products to return to room temperature before using

to prevent moisture condensation on the adhesive surface or cracking during handling.

Refrigerated storage at 40°F ± 5°F (4°C ± 3°C) is suggested for 3M™ Scotch-Weld™

Structural Adhesive Primer EC-2320. Primer should be permitted to thoroughly warm to

room temperature before using in order to prevent moisture condensation.

Storage

The shelf life of Scotch-Weld AF 126 and AF 126 FR is 3 months at 0°F (-18°C) or

below.

The out times* is:

1. at 40°F (4°C) – 30 days

2. at 75°F (24°C) – 10 days

3. at 90°F (32°C) – 5 days

*as measured by peel test values.

Shelf Life

Structural Adhesive Film

AF 126 • AF 126 FR

Product Application

(continued)

Cure Time

Cure time depends on the cure temperature used, methods of heat application,

production limitations and bond properties required. Since no two bonding operations

are exactly alike, it is suggested that a few simple experiments be conducted varying

both temperature and cure time to determine optimum conditions for the particular

application.

The following cure cycle is suggested to obtain dense glue lines and was used to obtain

the strengths reported in the Test Results section:

1. Apply a pressure of 50 psi (0.35 MPa) prior to reaching a bond line temperature of

150°F (66°C) and maintain throughout the cure cycle.

2. Raise the bond line temperature from ambient to 250°F (121°C).

3. Cure for 60 minutes at 250°F (121°C).

4. Cool to below 200°F (93°C) bond line temperature prior release of pressure.

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