Cut Sheet

Scotchrap All-Weather Corrosion Protection Tape - Pipe Coverage Table
Pipe Size Squares of Tape for 100 Linear Ft. Pipe
Nominal I.D. (Inches) O.D. (Inches) Suggested Tape Width Minimum Overlap 1/2" Half-Lapped
1/2 0.84 1 0.44 0.44
3/4 1.05 2 0.37 0.55
1 1.32 2 0.46 0.69
1-1/4 1.66 2 0.58 0.87
1-1/2 1.90 2 0.66 0.99
2 2.38 2 0.83 1.25
21/2 2.88 2 1.00 1.51
3 3.50 4 1.05 1.83
31/2 4.00 4 1.20 2.09
4 4.50 4 1.35 2.36
5 5.57 4 1.59 2.92
6 6.63 6 1.89 3.47
7 7.63 6 2.18 3.99
8 8.63 6 2.46 4.52
10 10.75 6 3.07 5.63
12 12.75 6 3.64 6.67
14 14.00 6 4.00 7.33
16 16.00 6 4.57 8.37
18 18.00 6 5.14 9.42
20 20.00 6 5.71 10.47
22 22.00 6 6.28 11.51
24 24.00 6 6.85 12.56
26 26.00 6 7.42 13.61
28 28.00 6 8.00 14.65
30 30.00 6 8.56 15.70
36 36.00 6 10.28 18.84
Scotchrap All-Weather Corrosion Protection Tapes - Typical Properties* Continued
Property Test Method 50 Tape 51 Tape
Breaking Strength ASTM-D-1000 20 lb./in. (3.5 kN/m) 40 lb./in. (7,0 kN/m)
Adhesion to Steel ASTM-D-1000
10°F (-12°C) 30 oz./in. (0,328 kN/m) 30 oz./in. (0,328 kN/m)
74°F (-23°C) 20 oz./in. (0,219 kN/m) 20 oz./in. (0,219 kN/m)
Adhesion to Backing ASTM-D-1000
10°F (-12°C) 30 oz./in. (0,328 kN/m) 30 oz./in. (0,328 kN/m)
74°F (-23°C) 20 oz./in. (0,219 kN/m) 20 oz./in. (0,219 kN/m)
Roll Unwind ASTM-D-1000
10°F (-12°C) 16 oz./in. (0,175 kN/m) 16 oz./in. (0,175 kN/m)
74°F (-23°C) 16 oz./in. (0,175 kN/m) 16 oz./in. (0,175 kN/m)
Water Vapor Transmission Rate
g/100 in
2
(645 cm
2
)/24 hrs. ASTM-D-3833 1.0 1.0
Moisture Absorption ASTM-D-570 .30% .35%
Resistance to Weathering 3M 100 Hrs. 100 Hrs.
Weatherometer
Dielectric Strength ASTM-D-1000 12,000 Volts 20,000 Volts
Normal Application +10°F to 150°F +10°F to 150°F
Temperature Range (-12°C to 65.6°C) (-12°C to 65.6°C)
Normal Service -55°F to 175°F -55°F to 175°F
Temperature Range (-48°C to 80°C) (-48°C to 80°C)
*This data is not to be used for specification. Values listed are for typical properties and should not be considered minimum or maximum.
NOTE: For the Scotchrap tapes to work properly, all metal surfaces must be coated with 3M Scotchrap Pipe Primer before wrapping with the tape.
Scotchrap All-Weather Corrosion Protection Tape
Tape Width #Rolls per Square
1" 12
2" 6
4" 3
6" 2
12" 1
All widths are in 100 ft. rolls. 1 square = 100 sq. ft. (i.e., a roll 1 ft. wide x 100 ft. long)
To covert to rolls, multiply the number of squares by the number of rolls/square from the above tables.