3M™ Hot Melt Adhesive

3747 • 3779 • 3789 • 3797

Directions for

Use (continued)

3. Coverage: 3M™ Hot Melt Adhesives yield approximately 430 linear feet per pound

of adhesive when extruded as a 1/8” diameter semi-circular bead.

4. Se t up time: After the bond is made, 3M™ Hot Melt Adhesives immediately build

strength and no clamping is necessary. Set will occur faster on cold or metallic

substrates.

Typical

Application

Properties

Note: The following technical information and data should be considered representative or

typical only and should not be used for specification purposes.

3M™ Hot Melt Adhesive

3747

3779

3789

3797

Application

350-385°F/

177-196°C

350-385°F/

177-196°C

350-385°F/

177-196°C

350-385°F/

177-196°C

4,100 @

375°F

7,000 @

375°F

5,200 @

375°F

2,650 @

375°F

Open Time

45

25

50

30

Delivery Time

45

75

70

55

Available

sizes/forms

5/8”x8” Q

5/8”x2” TC

1”x3” PG

1/2”x12” AE

5/8”x8” Q

5/8”x2” TC

1”x3” PG

1/8” Bulk

5/8”x8” Q

1”x3” PG

1/8” Bulk

5/8”x2” TC

1”x3” PG

(1) Recommended application temperature range. Temperature can be adjusted to regulate desired

viscosity, delivery rate and pot life.

(2) Brookfield Thermocel Viscometer in Centipoise using a #27 Spindle @ 10 RPM.

(3) Open time is the maximu m time between the application of the adhesive and when the parts

must be joined together. Data based on 1/8" semicircular bead on non-metallic substrates at 75°F.

Higher environmental temperatures and/or larger beads will lengthen open times.

(4) Extrusion time for one 1”x3” PG cartridge.

Typical

Performance

Properties

Note: The following technical information and data should be considered representative or

typical only and should not be used for specification purposes.

3M™ Hot Melt Adhesive

3747

3779

3789

3797

145°F/ 63°C

300°F/ 149°C

220°F/ 104°C

170°F/ 77°C

Ball & Ring Melt

220°F/ 104°C

325°F/ 163°C

270°F/ 132°C

304°F/ 151°C

430 psi

700 psi

570 psi

350 psi

20 piw

18 piw

16 piw

10 piw

UL94 Listing

n/a

V0

V2

V2

FDA Indirect

21 CFR

175.105

21 CFR

175.105

21 CFR

175.105

21 CFR

175.105

(1) Highest temperature that the adhesive will support a 2 psi dead load

(2) ASTM E28-67

(3) Overlap shear measured on Douglas Fir to Douglas Fir

(4) Measured in pounds per inch width (piw). Flexible canvas bonded to Douglas Fir

(5) Permitted for indirect food contact subject to the limitations in applicable CFR section(s).