Scotch
ATG Tapes
969 976 970XL
924 926 928
Technical Data August, 2000
Product Description Tape 924 0.002 in. (0.05 mm) thick adhesive transfer tape
Tape 926 0.005 in. (0.13 mm) thick high performance adhesive transfer tape
Tape 928 0.002 in. (0.05 mm) thick high-tack/low-tack double coated tape
Tape 969 0.005 in. (0.13 mm) thick high-tack adhesive transfer tape
Tape 970XL 0.001 in. (0.025 mm) thick adhesive transfer tape
Tape 976 0.002 in. (0.05 mm) thick high-tack adhesive transfer tape
Tapes are reverse wound on 1-inch diameter cores for use in Scotch ATG dispensers.
Construction
Products Tape 924 Tape 926 Tape 928 Tape 969 Tape 976 Tape 970XL
Adhesive Type: 400 350 400/1000 300 300 400
*
Adhesive Carrier: None None Tissue None None None
Release Liner: Tan Paper Tan Paper White Paper Tan Paper Tan Paper White Paper with
*DK *DK *PCK *DK *DK Red Printing *DK
Approximate Thickness:
Release Liner 0.004 in. 0.004 in. 0.006 in. 0.005 in. 0.004 in. 0.0025 in.
(0.10 mm) (0.10 mm) (0.15 mm) (0.13 mm) (0.10 mm) (0.065 mm)
Tape Only 0.002 in. 0.005 in. 0.002 in. 0.005 in. 0.002 in. 0.001 in.
(0.05 mm) (0.13 mm) (0.05 mm) (0.13 mm) (0.05 mm) (0.025 mm)
Tape Color: Clear Clear White Clear Clear Clear
*DK = densified kraft PCK = polycoated kraft
*Adhesive System 350 is a firm acrylic pressure-sensitive adhesive system. It features very high adhesion to a variety of surfaces, excellent
shear holding power, high temperature resistance and excellent UV resistance.
Adhesive System 400 is a medium-firm acrylic pressure-sensitive adhesive system. It features an excellent balance of good initial adhesion
(quick stick) and good shear holding power.
Adhesive System 400 is a medium-firm acrylic pressure sensitive adhesive system. If features high initial adhesion to a wide variety of
materials and good shear holding power.
Adhesive System 300 is a soft acrylic pressure-sensitive adhesive system. It features very high initial adhesion and good shear holding power
to a wide variety of materials including most plastics.
Adhesive System 1000 is a low-tack, repositionable acrylic pressure-sensitive adhesive.
Scotch ATG Tapes
924 926 928 969 976 970XL
Note: The following technical information and data should be considered representative
Typical Physical
or typical only and should not be used for specification purposes.
Properties and
Performance
Characteristics
Products Tape 924 Tape 926 Tape 928 Tape 969 Tape 976 Tape 970XL
Adhesion to Steel:
(ASTM D3330) 25 oz./in. 150 oz./in. 3 oz./in. 75 oz./in. 60 oz./in. 14 oz./in.
(27 N/100 mm) (163 N/100 mm) low-tack side (82 N/100 mm) (66 N/100 mm) (15 N/100 mm)
12 oz./in.
high-tack side
(13 N/100 mm)
Relative High Temperature
Operating Ranges:
Long Term (days, weeks) 180F 300F 120F 180F 180F 180F
(82C) (149C) (49C) (82C) (82C) (82C)
Short Term (minutes, hours) 250F 450F 180F 250F 250F 250F)
(121C) (232C) (82C) (121C) (121C) (121C)
Relative Solvent Resistance: Good Very Good Fair Medium Medium Good
U.V. Resistance: Excellent Good Good Not recommended Excellent
for direct exposure
to sunlight or other
sources of U.V. light.
Shelf Life of Tape in Roll Form: 24 months from date of manufacture when stored in original cartons at 70F (21C) and 50% relative humidity.
Available Sizes
Available Lengths: 36 yd. (32.9 m) 18 yds. (16.5 m) 18 yds. (16.5 m) 18 yds. (16.5 m) 36 yds. (32.9 m) 36 yds. (32.9 m)
60 yds. (54.9 m) 36 yds. (32.9 m) 36 yds. (32.9 m) 36 yds. (32.9 m) 60 yds. (54.9 m) 60 yds. (54.9 m)
Available Widths: 1/4 in, 1/2 in., 1/4 in., 1/2 in., 1/2 in. and 3/4 in. 1/4 in., 1/2 in., 1/4 in., 1/2 in. 1/2 in. and 3/4 in.
3/4 in. and 2 in. 3/4 in. and 2 in. 3/4 in. and 2 in. and 3/4 in.
Normal Slitting Tolerance: 1/32 in. (0.8 mm)
Core Size (ID) 1.0 in. (25.4 mm) 1.0 in. (25.4 mm) 1.0 in. (25.4 mm) 1.0 in. (25.4 mm) 1.0 in. (25.4 mm) 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 adhesive contact and
improve bond strength.
To obtain optimum adhesion, the bonding surfaces must be clean, dry and well
unified. Typical surface cleaning solvents are isopropyl alcohol and water (rubbing
alcohol) or heptane. Note: Be sure to follow the manufacturers precautions and
directions for use when using solvents.
Ideal tape application temperature range is 70F to 100F (21C to 38C). Initial
tape application to surfaces at temperatures below 50F (10C) is not recommended
because the adhesive becomes too firm to adhere readily. However, once properly
applied, low temperature holding is generally satisfactory.