3M™ Extreme Sealing Tape

Surface

4411N

4411G

4411B

4412N

4412G

Preparation lb/in

N/cm

lb/in

N/cm

lb/in

N/cm

lb/in

N/cm

lb/in

N/cm

Stainless

AP111

15

26

16

28

17

30

18

32

18

32

Aluminum

AP111

15

26

15

26

19

33

18

32

18

32

Truck Paint

AP111

14

25

15

26

17

30

19

33

17

30

Glass

AP115

15

26

15

26

19

33

19

33

16

28

PC

P94

16

28

15

26

18

32

18

32

18

32

Acrylic

P94

15

26

15

26

16

28

19

33

17

30

ABS

P94

16

28

16

28

18

32

19

33

18

32

PVC

P94

16

28

15

26

19

33

19

33

18

32

PP

P94

15

26

15

26

16

28

18

32

17

30

3M

4411N • 4411G • 4411B • 4412N • 4412G

- 3 -

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.

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)

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.