Scotch

®

ATG Gold Adhesive Transfer Tape

908

Technical Data

September, 2009

Product Description

Scotch

pressure sensitive, permanent adhesive transfer tape.

Construction

Product

Tape 908

Adhesive Type:

320AF*

Release Liner:

White paper with printed red 3M logo

Approximate Thickness

Release Liner:

.003 in. (0.08 mm)

Tape Only:

0.002 in. (0.05 mm)

Tape Color:

Clear

*320AF is an acid-free medium-firm acrylic pressure sensitive adhesive system. It features a

good balance of high initial adhesion (quick stick) and shear holding power.

Typical Physical

Properties and

Performance

Characteristics

Note: The following technical information and data should be considered representative

or typical only and should not be used for specification purposes.

Adhesion to Steel (Stainless):

(ASTM D-3330)*

60 oz./in. (66 N/100 mm)

*Modified: 72 Hr. room temperature dwell - 180 degree peel at 12 in/min (305 mm/min) -

2 mil. aluminum to stainless steel.

Relative High Temperature

Operating Ranges:

Short Term: (minutes, hours)

180°F (82°C)

Long Term: (days, weeks)

150°F (66°C)

Relative Solvent Resistance:

Good

U.V. Resistance:

Good

Shelf Life of Tape in Roll Form:

18 months from date of manufacture when stored in original

cartons at 70°F (21°C) and 50% R.H.

Available Sizes

Available Lengths:

Standard

36 yds. (32.9 m) and 60 yds. (54.9 m)

Available Widths:

1/4 in. (6.4 mm), 1/2 in. (12.7 mm) and 3/4 in. (19 mm)

Normal Slitting Tolerance:

± 1/32 in. (0.8 mm)

Core Size (ID):

1.0 in. (25.4 mm)

Application

Techniques

• Bond strength is dependent upon the amount of adhesive-to-surface contact developed.

Firm application pressure helps develop better contact (wet out) and improved bond

strength.

• To obtain optimum adhesion, the bonding surfaces must be clean, dry, and well unified.

• Ideal tape application temperature range is 70°F to 100°F (21°C to 38°C). Initial tape

application to surfaces at temperatures below 50°F (10°C) is not recommended

because the adhesive becomes too firm to adhere readily. However, once properly

applied, low temperature holding is generally satisfactory.