3789-Q

3 Hot Melt Adhesive 3747 • 3779 • 3789 • 3797 Technical Data July, 2016 Product Description 3M™ Hot Melt Adhesives are heat applied, 100% solids adhesives. 3M™ Hot Melt 3747, 3779, 3789 and 3797 are thermoplastic adhesives to bond to wide variety of substrates such as wood, plastic, vinyl, metal and glass. 3M™ Hot Melt Adhesive 3747 General purpose adhesive for bonding dissimilar substrates such as wood to plastic, fabric to metal. 3M™ Hot Melt Adhesive 3779 High strength bonding with excellent environmental stability including very high heat resistance. Fast set time. 3M™ Hot Melt Adhesive 3789 High performance for plastic with good fuel, oil and plasticizer resistance. Long open time. 3M™ Hot Melt Adhesive 3797 Low viscosity for fast flow rates, good high temperature resistance, and fast set. Good for electrical potting. Features  100% solids, no VOCs  Easy to use  Long open times allow for easy use on large assemblies and large surfaces  Adhesive sets and obtains strength in seconds  Creates high performance bonds  Ideal for woodworking and general industrial applications. 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. Color (solid) Density (g/cm3 ) Flashpoint (°F)1 3747 Tan 0.97 509 3M™ Hot Melt Adhesive 3779 3789 Amber Brown 0.99 0.95 550 >392 3797 Off-White 0.92 570 (1) Determined by Cleveland Open Cup ASTM D 92-72. Directions for Use 1. Surface Preparation: Surfaces must be clean, dry and dust free. Wipe with a solvent such as isopropyl alcohol for plastic, metal and glass substrates to remove 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. Adhesives yield approximately 430 linear feet per pound of adhesive when extruded as a 1/8” diameter semi-circular bead. Extruded bead sizes can be customized using 3M™ applicator tips. 3M™ Hot Melt Adhesive 3747 • 3779 • 3789 • 3797 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 bead. 4. Set 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. Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 3747 Application Temperature 1 3M™ Hot Melt Adhesive 3779 3789 3797 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 (seconds)3 45 25 50 30 Delivery Time (seconds)4 45 75 70 55 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 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. 3747 3M™ Hot Melt Adhesive 3779 3789 3797 Heat Resistance 1 145°F/ 63°C 300°F/ 149°C 220°F/ 104°C 170°F/ 77°C Ball & Ring Melt Point2 220°F/ 104°C 325°F/ 163°C 270°F/ 132°C 304°F/ 151°C Shear Strength3 430 psi 700 psi 570 psi 350 psi Peel Strength4 20 piw 18 piw 16 piw 10 piw UL94 Listing FDA Indirect Food Contact5 n/a 21 CFR 175.105 V0 21 CFR 175.105 V2 21 CFR 175.105 V2 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). 3M™ Hot Melt Adhesive 3747 • 3779 • 3789 • 3797 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. 3 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