Drawing
3M™ Scotchrap™ Tapes 50, 51 & Pipe Primer, 3M™ Scotchfil™ Electrical Insulation Putty
4 of 4
3M, Scotchrap and Scotchfil are trademarks of 3M Company.
3
Electrical Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
800.245.3573
FAX: 800.245.0329
www.3M.com/electrical
Please recycle
© 3M 2013 All rights reserved
78-8129-9283-8 Rev C
3M™ Scotchrap™ Tapes 50 and 51, All-Weather Corrosion Protection Tapes – Pipe Coverage Table, cont.
Paper Size Squares of Tape for 100 Linear Ft. Pipe
Nominal I.D.
(
Inches
)
O.D.
(
Inches
)
Su
gg
ested Ta
p
e Width Minimum Overla
p
1/2” Hal
f
-La
pp
ed
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
While the chart gives coverage data for most common sizes, the following formula may be helpful for non-standard items:
Squares of Tape = (LP) ( (DP) TW
1200 (TW-OV)
Where = 3.14
LP = length of pipe (ft.)
DP = outside diameter of pipe (in.)
TW = tape width (in.)
OV = overlap of tape (in.)
When using metrics,
Squares of tape = (LP) ( (DP) TW
9290 (TW-OV)
Metric Conversions
1 inch = 25,4 millimeters
1 foot = 0,3048 meter
1 sq. ft. = 0,092 sq. meter
1 gallon = 3,785 liters
Primer Coverage
1 gallon of 3M Scotchrap Pipe Primer will
cover up to 700 sq. ft., depending on the
surface condition of the pipe. To calculate
area of pipe for primer coverage:
Sq. ft. of pipe = (DP ÷ 12) (LP)
Shelf Life & Storage
These products have a 5-year shelf life from date of manufacture when stored in a
humidity controlled storage (10°C/50°F to 27°C/80°F and <75% relative humidity).
Availability
Please contact your local distributor; available from 3M.com/electrical [Where to Buy]
or call 1-800-245-0329.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed to
be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and
determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any
statements related to the product, which are not contained in 3M’s current publications, or any contrary statements
contained on your purchase order, shall have no force or effect unless expressly agreed upon, in writing, by an authorized
officer of 3M.
Warranty; Limited
Remedy; Limited
Liability
This product will be free from defects in material and manufacture at the time of purchase. 3M MAKES NO OTHER
WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive
remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except
where prohibited by law, 3M will not be liable for any indirect, special, incidental or consequential loss or damage
arising from this 3M product, regardless of the legal theory asserted.