Extreme Sealing Tape
4411N • 4411G • 4411B • 4412N • 4412G
Technical Data
September,
2014
Product
Description
3M™ Extreme Sealing Tape is a family of single coated, pressure sensitive adhesive tapes
designed for difficult sealing applications. The backing on this tape is an ionomer film that is
very tough yet flexible and abrasion resistant. The very soft and thick acrylic adhesive has
excellent sealing properties and good outdoor durability. This single coated tape is designed to
seal over an existing joint, seam, or penetration. The adhesive is designed to adhere well to the
ionomer film so that overlapping tape joints can be made while maintaining a strong seal.
Construction
Release Liner
Ionomer Backing
Adhesive
Thickness, mils (mm)
Construction
Release Liner
Ionomer Backing
Adhesive
Total Tape Thickness
36
(0.9)
40
(1.0)
4411N
4411G
4411B
2
(0.05)
4
(0.1)
76
(1.9)
80
(2.0)
4412N
4412G
Description
matte, translucent
polyester film
acrylic and ethylene copolymer
very conformable multi-
purpose acrylic
without disposable release liner
3M
™
Extreme Sealing Tape
4411N • 4411G • 4411B • 4412N • 4412G
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.
3M™ Extreme Sealing Tape
4411N
Tape Color
Thickness, mil (mm)
Tape Density, lb/ft
3
(g/cm
3
)
Tape Tensile Strength, lb/in (N/cm)
(ASTM D-3759 with D-412 dog bone die C)
4411G
Gray
40 (1.0)
4411B
Black
4412N
Neutral/
Translucent
80 (2.0)
4412G
Gray
Neutral/
Translucent
51 (0.82)
13 (23)
400%
Tape Elongation to Break
(ASTM D-3759 with D-412 dog bone die C)
90 Degree Peel Adhesion, lb/in (N/cm)
Based on ASTM D-3330;
stainless steel substrate, 72 hour room temp
with 3M™ VHB™ Tape 5925 tape to
attach aluminum peel strip backing;
3M™ Adhesion Promoter 111
used on substrates
15
(26)
16
(28)
17
(30)
18
(32)
18
(32)
Moisture Vapor Transmission Rate g/(m
2
day)
(Tested for 4412N only)
(ASTM E96, Procedure E)
Not Tested
Not Tested
Not Tested
10.6
Not Tested
Max Temperature Tolerance
Short term (minutes, hours)
Long term (days, weeks)
High Pressure Water Resistance
Moisture Resistance
Thermal Shock Resistance
U.V. Resistance:
300°F (149°C)
200°F (93°C)
Excellent
Excellent
Excellent
Samples passed adhesion tests after 2000 hours of accelerated aging.
See “3M™ Extreme Sealing Tape - Exterior Durability Report”.
Available Sizes
Standard Widths:
Standard Lengths:
0.75", 1", 2", 2.5", 3", 4" (19mm 25mm, 50mm, 65mm, 75mm, 100mm)
36 yards (32.9 meters) for 4411N, 4411G and 4411B
18 yards (16.5 meters) for all versions
3" (76.2 mm)
± 1/32" (0.8 mm)
± 10%
Core Inside Diameter:
Slitting Tolerance:
Thickness Tolerance:
-2-
3M
™
Extreme Sealing Tape
4411N • 4411G • 4411B • 4412N • 4412G
90 Degree Peel
Adhesion Strength
(Based on ASTM D-3330;
various substrates, 72 hour
room temp with 3M™
VHB™ 5925 tape to
attach aluminum peel
strip backing; adhesion
promoter or primer
used on substrates)
3M™ Extreme Sealing Tape
4411N
Surface
Preparation lb/in N/cm
Stainless
Aluminum
Truck Paint
Substrate
Glass
PC
Acrylic
ABS
PVC
PP
Notes:
1. For metals and paints, 3M™ Adhesion Promoter 111 was used to increase adhesion to maximum levels.
2. For glass, 3M™ Silane Glass Treatment AP115 was used to increase adhesion to maximum levels and
to provide long term durability on glass.
3. For plastics, 3M™ Primer 94 was used to increase adhesion to maximum levels. Note that Primer 94
has high levels of VOC’s and may not be available for purchase in all areas.
4411G
lb/in
16
15
15
15
15
15
16
15
15
N/cm
28
26
26
26
26
26
28
26
26
4411B
lb/in
17
19
17
19
18
16
18
19
16
N/cm
30
33
30
33
32
28
32
33
28
4412N
lb/in
18
18
19
19
18
19
19
19
18
N/cm
32
32
33
33
32
33
33
33
32
4412G
lb/in
18
18
17
16
18
17
18
18
17
N/cm
32
32
30
28
32
30
32
32
30
AP111
AP111
AP111
AP115
P94
P94
P94
P94
P94
15
15
14
15
16
15
16
16
15
26
26
25
26
28
26
28
28
26
Preparing the
Surfae
The first step in making a successful seal is to prepare the surface for bonding. At a
minimum, this means making sure the bonding surface is clean of all contaminants. For
most surfaces, cleaning with a 50:50 mixture of isopropyl alcohol* (IPA) and water works
well. If the substrate is contaminated with heavy oils or grease, a degreaser or strong
solvent may be used to remove the oil, but a final wipe of IPA/water should be used.
For many substrates, a simple cleaning will allow 3M™ Extreme Sealing Tape to bond.
However, adhesion promoters can be used to increase both initial and final bond strength.
The following three primers are commonly used with 3M™ Extreme Sealing Tapes:
Metals and Paints
3M™ Adhesion Promoter 111 (AP111) increases adhesion on most metals and many hard
coatings and paints.
Plastics and Rubbers
3M™ Primer 94 increases adhesion on many plastics and rubbers.
Glass
3M™ Adhesion Promoter 115 (AP115) increases adhesion on glass.
See technical data sheets for adhesion promoter and primer application instructions.
*Consult
manufacturer’s directions for use and precautions when using cleaning solvents.
This cleaning recommendation may not be compliant with the rules of certain Air Quality
Management Districts in California; consult applicable rules before use.
-3-
3M
™
Extreme Sealing Tape
4411N • 4411G • 4411B • 4412N • 4412G
Application
Temperature
Ideal tape application is accomplished when temperature is between 70° and 100°F
(21° and 38°C). The tape generally reaches full bond strength after 24 hours but
provides a seal immediately. Tape application to surfaces at temperatures below
50°F (10°C) is generally not recommended. Once properly applied, low temperature
holding is generally satisfactory.
Select the Proper
Tape Width
In order to provide a seal, the tape must cover all points of water intrusion. To do this
robustly, the tape should be wide enough to cover the intrusion points and provide for
some variation in workmanship. Choosing a tape width that allows the tape to extend
at least 2 cm (3/4 in) beyond the sealing points can help to accomplish this.
Applying 3M™
Extreme Sealing
Tape
3M™ Extreme Sealing Tape has a release liner on the backing side of the tape.
To avoid overstretching, this liner is usually left on while laying down the tape.
Application Steps
•
•
•
Lay tape down so that it covers all areas meant to be sealed.
Remove release liner (file cleaning brush can help)
Roll down tape with a soft roller (such as a medium nap paint roller). If there is a
step, roll down top and bottom separately.
-4-
3M
™
Extreme Sealing Tape
4411N • 4411G • 4411B • 4412N • 4412G
Creating an
Overlap Joint
It is often required to overlap 3M™ Extreme Sealing Tape onto itself. In this case,
the ionomer backing of the first piece is one of the substrates to which the second
piece of tape is bonding. The tapes should overlap at least 2 cm (3/4 in).
Surface Preparation
The ionomer does not need to be cleaned prior to bonding unless it has been
contaminated with oil, dirt, grease, etc. If the bonding area of the ionomer has been
contaminated, IPA/water can be used to clean the surface.
A quick wipe of AP111 on the ionomer is suggested for best performance of the
overlapping tape. AP111 will approximately double Extreme Sealing Tape’s
adhesion to its own ionomer backing.
Pressure
Firm pressure should be applied to all points of overlap between the two tapes to
join the adhesives and create a robust seal.
Additional Sealing
To increase sealing robustness, a small dab of liquid sealant 3M™ 4000UV is
suggested at the points of overlapping tape. This step maximizes process robustness
by decreasing the chance that an improperly pressurized overlap might leave a gap.
In the above images, the white circles indicate where 3M 4000UV should be applied
in the corner and step situations. These two general categories can describe most
common configurations. For configurations other than these, the general principle is
to use 3M™ 4000UV in any place where water (shown as blue arrows) could seep
past an improperly joined overlap.
Do not apply 3M™ Extreme Sealing Tape over the top of uncured liquid sealants.
If using over a liquid sealant, check with sealant’s manufacturer to determine when
sealant is 100% cured. Certain chemicals produced by the curing process of some
liquid sealants may cause detrimental effects to the long term stability of the bond.
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