3M Scotch-Weld Super Fast Instant Adhesive SF100

Identify substrates and prepare surfaces. Ensure bonding surfaces are clean and positioned for alignment; light roughening of smooth plastic improves adhesion.

Avoid excessive moisture on surfaces. Although SF100 is less moisture-dependent than standard cyanoacrylates, ensure surfaces are not wet or dripping.

Select application method based on joint type. Pinch the flexible container for single precise drops on small areas; squeeze for steady beads on longer joints.

Apply adhesive to one surface only. Dispense adhesive to one bonding surface—application to both surfaces wastes product and provides no adhesion advantage.

Bring surfaces together immediately. With 3–5 second work time, position and press bonded surfaces together without delay.

Apply firm pressure and hold. Press surfaces together with firm, even pressure and hold for 30–60 seconds as initial set develops.

Maintain alignment during holding. Movement during the initial holding period interferes with bond development—keep surfaces stationary and aligned.

Release after initial set. After 60–90 seconds, the bond is sufficiently developed to release without joint separation.

Avoid stress on bonds during curing. Although initial set is rapid, avoid pulling or twisting bonded assemblies until full 24-hour cure is complete.

For critical or load-bearing bonds, use clamping. Fixtures or clamps during the 24-hour cure period ensure consistent pressure and maximum strength development.

Store properly for extended shelf life. Close the nozzle cap tightly immediately after use; store at 4°C to maintain adhesive performance.

Product Type Low-viscosity super-fast curing instant adhesive

Adhesive Classification Cyanoacrylate

Physical Form Self-leveling liquid

Product Colour Transparent

Container Format Flexible bottle with cut-to-size nozzle

Container Sizes 20 g

Viscosity Low, self-leveling for thin bond layers

Work Time 3–5 seconds

Set Time Not specified; rapid progression from work time

Initial Holding Time 30–60 seconds recommended

Full Cure Time 24 hours at 72°F (22°C)

Shear Strength 2900 psi

Gap Filling Capability 0.152 mm maximum

Application Temperature Range -50°C to 80°C

Maximum Operating Temperature 82°C (180°F)

Material Compatibility Leather, cork, wood, plastic, rubber, difficult-to-bond substrates

Surface Requirements Works on contaminated, acidic, and difficult surfaces

Moisture Dependency Low—less reliant on surface moisture than standard cyanoacrylates

Specification Compliance Meets CID A-A-3097, Type II, Class 1

Application Method Flexible container pinch for drops; squeeze for beads

Nozzle Type Cut-to-size for targeted application

Storage Temperature 4°C (40°F) for optimal shelf life

Indoor/Outdoor Both suitable

HS Code 3506.10

• Safety Data Sheet