3

Structural Adhesive Film

AF 32

Introduction

3M™ Scotch-Weld™ Structural Adhesive AF 32 is an unsupported, thermosetting

film adhesive designed for structural bonding especially where high peel strengths or

vibration damping is required.

Scotch-Weld AF 32 film adhesive offers the following advantages:

• Exceptionally high peel strength.

• Good flexibility and shear strength.

• Low tack, dry film. Can be pressure, heat or solvent tacked in position.

• Excellent retention of strength after aging in many environments.

• Excellent adhesion to aluminum, titanium, stainless steel, cadmium, nickel, brass,

phenolic, and epoxy (must use high bonding pressure).

• Extremely low flow.

Technical Data

Issue No. 3

Description

Form:

Flexible unsupported film, protected by a suitable liner.

Color:

Yellowish Brown

Nominal Caliper:

10 mils

Weight:

Volatile Content:

2.5% (2-4 gm sample cured 1 hr. @ 350°F (182°C)

Availability:

Maximum width is 20 inches. Standard roll is 36 yds. long

Shrinkage:

5% maximum (24 hrs @ 75°F ± 5°F [24°C ± 2.8°C]) in

horizontal position.

General

The technical information and data contained in this technical data sheet should be

considered representative or typical only and should not be used for specification

purposes.