3M™ Scotchrap™ Tapes 50, 51 & Pipe Primer, 3M™ Scotchfil™ Electrical Insulation Putty

3 of 4

Typical Properties,

continued

Not for specifications. Values are typical, not to be considered minimum or maximum.

Properties measured at room temperature 73°F (23°C) unless otherwise stated.

3M™ Scotchrap™ Tapes 50 and 51, All-Weather Corrosion Protection Tapes,

continued

Property

(Test Method ASTM D-1000 unless otherwise

stated)

50 Tape

US units (metric)

51 Tape

US units (metric)

Water Vapor Transmission Rate

(ASTM D-3833)

1.0

1.0

Moisture Absorption

(ASTM D-570)

.30%

.35%

Resistance to Weathering

(3M)

Weatherometer

100 Hrs.

100 Hrs.

Dielectric Break Down Voltage

12,000 volts

20,000 volts

Normal Application

Temperature Range

+10°F to 150°F

(-12°C to 65.6°C)

+10°F to 150°F

(-12°C to 65.6°C)

Normal Service

Temperature Range

-55°F to 175°F

(-48°C to 80°C)

-55°F to 175°F

(-48°C to 80°C)

Note: For 3M™ Scotchrap™ Tapes 50 and 51 to work properly, all metal surfaces must be coated with

3M™ Scotchrap™ Pipe Primer before wrapping with the 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 convert to rolls, multiply the number of squares by the number of roll/square from the above tables

3M™ Scotchrap™ Tapes 50 and 51, All-Weather Corrosion Protection Tape – Pipe Coverage Table

Paper 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

2-1/2

2.88

2

1.00

1.51

3

3.50

4

1.05

1.83

3-1/2

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