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Hot Melt Adhesive
3764 • 3748
Technical Data
July, 2016
Product Description
3M™ Hot Melt Adhesives are 100% solids, thermoplastic resins that become fluid
when heated and quickly wet the bonding surface. They cool, harden and reach bond
strength in seconds, keeping production flowing by eliminating clamps, fixturing and
drying, and saving time energy and space.
3M™ Hot Melt Adhesive 3764 and 3748 bond to a wide variety of substrates such as
wood, plain and coated corrugated, fabrics and foams, plastics, and other lightweight
materials.
3M™ Hot Melt Adhesive 3764
Excellent general plastics bonder with low
temperature flexibility.
3M™ Hot Melt Adhesive 3748
Designed especially for low surface energy
plastics and coatings such as polyolefins.
Good high temperature stability and thermal
shock resistance.
Features
100% solids, no VOCs
Easy to use
Adhesive obtains strength in seconds
Designed for plastics and polyolefin bonding, including ABS, PVC, polycarbonate,
polypropylene and polyethylene
Typical Physical
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
3764
3748
Clear
Off White
Color (solid)
Density (g/cm3 )
0.95
0.93
1
514
536
Flashpoint (°F)
(1) Cleveland Open Cup ASTM D92-72
Directions for
Use
1. Surface Preparation: Surfaces must be clean, dry and dust free. Wipe with a solvent
such as isopropyl alcohol for plastic substrates to aid in removing oil and dirt.*
*Note: When using solvents, extinguish all ignition sources, including pilot lights, and
follow the manufacturer’s precautions and directions for use.
2. Application: 3M™ Hot Melt Adhesives are designed for application with a 3M™ Hot
Melt Applicators. Read and follow the precautions and directions for use in the user’s
manual before operating the applicator. 3M™ Hot Melt Adhesives are applied at 350385°F.
Extruded bead sizes can be customized using 3M™ applicator tips.
3M™ Hot Melt Adhesive
3764 • 3748
Directions for
Use (continued)
Typical
Application
Properties
3. Coverage: 3M™ Hot Melt Adhesives yield approximately 430 linear feet per pound of
adhesive when extruded as a 1/8” diameter semi-circular
4. Set 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.
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
3764
3748
350-385°F/ 177-196°C
350-385°F/ 177-196°C
6,000 @ 375°F
5,000 @ 375°F
Open Time (seconds)3
40
45
Delivery Time (seconds)4
55
65
5/8”x8”Q
5/8”x2” TC
1”x3” PG
1/2”x12”AE
1/8” Bulk
5/8”x8”Q
5/8”x2” TC
1”x3” PG
Bulk
Application Temperature 1
Viscosity (CPS)2
Available sizes/forms
(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
3764
3748
Heat Resistance 1
140°F/ 60°C
175°F/ 79°C
Ball & Ring Melt Point2
190°F/ 88°C
292°F/ 144°C
Shear Strength3
390 psi
250 psi
Peel Strength4
14 pwi
18 pwi
UL94 Listing
V2
V2
21 CFR 175.105
21 CFR 175.105
FDA Indirect Food Contact5
(1) Highest temperature that the adhesive will support a 2 psi dead load .
(2) ASTM E28-67.
(3) Douglas Fir to Douglas Fir.
(4) Canvas to Douglas Fir.
(5) Permitted for indirect food contact subject to the limitations in applicable CFR section(s).
3M™ Hot Melt Adhesive
3764 • 3748
Storage
Store product below 120°F (49°C).
Shelf Life
When stored at the recommended conditions, this product has a shelf life of 2 years
after 3M ships the product to a customer or distributor.
Precautionary
Information
Refer to Product Label and Material Safety Data Sheet for health and safety information before using this
product. For additional health and safety information, call 1-800-364-3577 or (651) 737-6501
Product Use
All statements, technical information and recommendations contained in this document are based upon
tests or experience that 3M believes are reliable. How ever, many factors beyond 3M’s control can affect
the use and performance of a 3M product in a particular application, including the conditions under
w hich the product is used and the time and environmental conditions in w hich the product is expected to
perform. Since these factors are uniquely within the user’s know ledge and control, it is essential that the
user evaluate the 3M product to determine w hether it is fit for a particular purpose and suitable for the
user’s method of application.
Warranty and
Limited Remedy
Unless stated otherwise in 3M’s product literature, packaging inserts or product packaging for individual
products, 3M w arrants that each 3M product meets the applicable specifications at the time 3M ships the
product. Individual products may have additional or different warranties as stated on product literature,
package inserts or product packages. 3M MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF
DEALING, CUSTOM OR USAGE OF TRADE. User is responsible for determining whether the 3M product
is fit for a particular purpose and suitable for user’s application. If the 3M product is defective within the
w arranty period, your exclusive remedy and 3M’s and seller’s sole obligation w ill be, at 3M’s option, to
replace the product or refund the purchase price.
Limitation of Liability
Except w here prohibited by law, 3M and seller w ill not be liable for any loss or damage arising from the
3M product, w hether direct, indirect, special, incidental or consequential, regardless of the legal theory
asserted, including w arranty, contract, negligence or strict liability.
ISO 9001: 2000
This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001: 2000 standards.
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Industrial Adhesives and Tapes Division
3M Center, Building 225-3S-06
St. Paul, M N 55144-1000
800-362-3550 • 877-369-2923 (Fax)
www.3M .com/Adhesives
3M is a trademark of
3M. Printed in U.S.A.
©3M 2016