Scotch-WeldTM Epoxy Adhesives DP460 Off-White and DP460NS Technical Data Sheet January 2019 Product Description 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White and DP460NS are high performance, two-part epoxy adhesives offering outstanding shear and peel adhesion, and very high levels of durability. Features * High shear strength * High peel strength * 60 minute work life * Non sag (DP460NS) * Easy mixing Typical Uncured Physical Properties Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 3MTM Scotch-WeldTM Epoxy Adhesive DP460 Off-White Product 3MTM Scotch-WeldTM Epoxy Adhesive DP460NS Viscosity (approx.) @ 73F (23C) Base Accelerator 20,000-50,000 cps 8,000-14,000 cps 150,000-275,000 cps 8,000-14,000 cps Base Resin Base Accelerator epoxy amine epoxy amine Color Base Accelerator white amber white amber Net Weight Lbs./Gallon Base Accelerator 9.3-9.7 8.8-9.2 9.3-9.7 8.8-9.2 Mix Ratio (B:A) Volume Weight 2:1 2:0.96 2:1 2:0.96 Work life, 73F (23C) 20 g mixed 10 g mixed 5 g mixed 60 minutes 75 minutes 90 minutes 60 minutes 60 minutes 60 minutes 1 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White * DP460NS Typical Cured Thermal Properties Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 3MTM Scotch-WeldTM Epoxy Adhesive DP460 Off-White Product Physical Color Off-white Shore D Hardness Thermal Coefficient of Thermal Expansion (in./in./C) Below Tg Above Tg Electrical Dielectric Strength (ASTM D 149) Volume Resistivity (ASTM D 257) Off-white 75-80 78-84 59 x 10-6 159 x 10-6 74.44 x 10-6 166 x 10-6 0.104 0.104 1100 volts/mil 727 volts/mil Thermal Conductivity (btu - ft./ft.2 - hr. - F) @ 45C Typical Curing Characteristics 3MTM Scotch-WeldTM Epoxy Adhesive DP460NS 2.4 x 1014 ohm-cm 3.25 x 1015 ohm-cm Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Rate of Strength Build-Up Aluminum, Overlap Shear (7 mil Bondline) (ASTM D 1002-72) Bonds Tested at 73F (23C) 3MTMScotch-WeldTM Epoxy Adhesive DP460 Off-White Time in Oven Cure Temperature 73F (23C) 120F1 (49C) -- -- -- -- -- 400 1000 3500 4000/602 <50 1300 4300/602 4400/602 4800/602 -- -- -- 30 minutes 60 90 2 hours 3 5 6 7 24 140F1 (60C) 3000/602 4500/602 -- 4800 -- -- -- -- 3MTMScotch-WeldTM Epoxy Adhesive DP460NS Time in Oven 15 minutes 30 60 2 hours 4 6 24 Cure Temperature 73F (23C) -- -- -- 1 46 970 4500 120F1 (49C) 160F1 (71C) -- 10 2800 5050 5400 5570 -- 4860 5250 5300 5470 5320 5140 5210 This represents the oven temperature to which the bonds were subjected for the prescribed time. The average bondline temperature during the cure time will be somewhat lower than the oven temperature. 1 The value in the denominator is the expected minimum 73F (23C) T-peel strength (piw) measured after the indicated cure cycle. 2 NOTE: The data in this Technical Data Sheet were generated using the 3MTM EPX Applicator System equipped with an EPX static mixer, according to manufacturer's directions. Thorough hand-mixing will afford comparable results. 2 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White * DP460NS Typical Adhesive Performance Characteristics Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Substrates and Testing A. Overlap Shear (ASTM D 1002-72) Overlap shear (OLS) strengths were measured on 1 in. wide 1/2 in. overlap specimens. These bonds were made individually using 1 in. x 4 in. pieces of substrate except for aluminum. Two panels 0.063 in. thick, 4 in. x 7 in. of 2024T-3 clad aluminum were bonded and cut into 1 in. wide samples after 24 hours. The thickness of the bondline was 0.005-0.008 in. All strengths were measured at 73F (23C) except where noted. The separation rate of the testing jaws was 0.1 in. per minute for metals, 2 in. per minute for plastics and 20 in. per minute for rubbers. The thickness of the substrates were: steel, 0.060 in.; other metals, 0.05-0.064 in.; rubbers, 0.125 in.; plastics, 0.125 in. B. T-peel (ASTM D 1876-61T) T-peel strengths were measured on 1 in. wide bonds at 73F (23C). The testing jaw separation rate was 20 inches per minute. The substrates were 0.032 in. thick. C. Bell Peel (ASTM D 3167) Bell peel strengths were measured on 1/2 in. wide bonds at the temperatures noted. The testing jaw separation rate was 6 in. per minute. The bonds are made with 0.064 in. bonded to 0.025 in. thick adherends. D. Cure Cycle With the exception of Rate of Strength Build-Up Tests, all bonds, were cured 7 days at 73F (23C) at 50% RH before testing or subjected to further conditioning or environmental aging. Aluminum, Overlap Shear, at Temperature (PSI) 3MTM Scotch-WeldTM Epoxy Adhesive DP460 Off-White -67F (-55C) 73F (23C) 180F (82C) (15 min.)1 (30 min.)1 (60 min.)1 (4 hr.)1 250F (121C) (15 min.)1 1Represents 4500 4500 700 1000 1400 2500 220 3MTM Scotch-WeldTM Epoxy Adhesive DP460NS 4900 4650 1360 1810 2630 2680 420 time in test chamber oven before test. Metals, Overlap Shear, Tested @ 73F (23C) (PSI) Aluminum Etched Oakite degreased MEK/abrade/MEK 4500 3200 3500 4500 2300 2670 Cold Rolled Steel Oakite degreased MEK/abrade/MEK 3500 2800 -- 3600 Copper MEK/abrade/MEK 4000 4400 Brass MEK/abrade/MEK CDA 260 Cartridge -- 4000 4200 3400 -- -- Stainless Steel MEK/abrade/MEK 4000 2400 2000 2100 2480 3000 Galvanized Steel - Oakite degreased Hot dipped Electrodeposited 3 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White * DP460NS Typical Adhesive Performance Characteristics (continued) Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Substrates and Testing Aluminum, T-Peel (PIW), at Temperature Aluminum, etched (17-20 mil bondline) 3MTM Scotch-WeldTM Epoxy Adhesive DP460 Off-White -67F (-55C) 73F (23C) 180F (82C) 3MTM Scotch-WeldTM Epoxy Adhesive DP460NS 5-10 60 3-5 3-5 60 20 Metals, T-Peel, Tested @ 73F (23C) (PIW) Aluminum, etched 17-20 mil bondline 5-8 mil bondline 60 50 Cold Rolled Steel 17-20 mil bondline Oakite degreased MEK/abrade/MEK 40 25 not tested not tested Aluminum Bell Peel (PIW), at Temperature (ASTM D 3167) 3MTM Scotch-WeldTM Temperature Epoxy Adhesive DP460NS 19 77 39 -67F (-55C) 73F (23C) 180F (82C) Other Substrates, Overlap Shear Tested @ 73F (23C) Surf. Prep.1 Substrate ABS PVC Polycarbonate Polyacrylic Polystryene FRP Phenolic SBR/Steel Neoprene/Steel Surf. Prep.2 3MTM Scotch-WeldTM Epoxy Adhesive DP460 Off-White 300 500 400 220 450 800 14003 1503 100 DP460NS 345 8153 380 210 320 570 12103 130 90 3MTM Scotch-WeldTM Epoxy Adhesive DP460 Off-White DP460NS 575 350 500 330 4753 10003 14003 1403 1203 572 3133 390 270 490 13793 12313 2393 1143 1 Isopropyl Alcohol Wipe. See Surface Preparation Section D for additional information. 2 Isopropyl Alcohol/Abrade/Isopropyl Alcohol: See Surface Preparation Section E for additional information. 3 Substrate failure 4 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White * DP460NS Typical Adhesive Performance Characteristics (continued) Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Substrates and Testing (continued) Environmental Resistance, Aluminum (Etched) 1 Measured by Overlap Shear Tested @ 73F (23C) (PSI) (ASTM D 1002-72) 3MTM Scotch-WeldTM Epoxy Adhesive Environment Condition 73F (23C)/50% RH 30 d2 Distilled Water 30 d, Water Vapor DP460NS DP460 Off-White DP460 Off-White 5200 i3 DP460NS 5460 5100 4550 120F (49C)/100% RH, 30 d 200F (93C)/100% RH, 14 d 4500 3100 3920 3370 Antifreeze/H2O (50/50) 180F (82C), 30 d, i 5000 4400 Isopropyl Alcohol 73F (23C), 30 d, i 5700 5320 Methyl Ethyl Ketone 73F (23C), 30 d, i 4200 4000 Salt Spray (5%) 95F (35C), 30 d 5100 5200 Skydrol LD-4 150F (66C), 30 d, i 3700 5250 1Data reported are actual values from the lots tested and may be higher than values published elsewhere in this Technical Data Sheet. 2 d = days 3 i = immersion 1 Environmental Resistance, Galvanized Steels 2 Measured by Overlap Shear Tested @ 73F (23C) (PSI) (ASTM D 1002-72) Hot Dipped Electrodeposited 3MTM Scotch-WeldTM Epoxy Adhesive 3MTM Scotch-WeldTM Epoxy Adhesive Environment Condition DP460 Off-White DP460 NS DP460 Off-White DP460 NS 73F (23C)/50% RH 30 d3 2200 not tested 2300 not tested 2300 not tested 2300 not tested i4 Distilled Water 30 d, Water Vapor 120F (49C)/100% RH, 30 d 200F (93C)/100% RH, 14 d 1900 1500 not tested 2000 1000 not tested Antifreeze/H2O (50/50) Isopropyl Alcohol 180F (82C), 30 d, i 2000 not tested 1950 not tested 73F (23C), 30 d, i 2000 not tested 2200 not tested Methyl Ethyl Ketone 73F (23C), 30 d, i 2000 not tested 2200 not tested Trichloroethane 73F (23C), 30 d, i 2300 not tested 2300 not tested Salt Spray (5%) 95F (35C), 30d 1900 not tested 1500 not tested 1 Hot dipped or electrodeposited. Galvanized steels may afford a wide spectrum of performance due to the diversity of surfaces available. The user should test to determine specific performance. 2 Data reported are actual values from the lots tested and may be higher than values published elsewhere in this Technical Data Sheet. 3 4 d = days i = immersion 5 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White * DP460NS 3MTM EPX Pneumatic Applicator Delivery Rates 200 ml Applicator - Maximum Pressure 58 psi Adhesive* 3MTM Scotch-WeldTM Epoxy Adhesive DP460 Off-White 6mm Nozzle gms/minute 10mm Nozzle gms/minute 31.1 132.0 *Tests were run at a temperature of 70F 2F (21C 1C) and at maximum applicator pressure. Handling/ Application Information Directions for Use 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White and DP460 NS are supplied in dual syringe plastic duo-pak cartridges as part of the 3MTM EPX Applicator System. The duo-pak cartridges are supplied in 37 ml, 200 ml and 400 ml configurations. To use the 37 ml cartridge simply insert the duo-pak cartridge into the EPX applicator and start the plunger into the cylinders using light pressure on the trigger. Next, remove the duo-pak cartridge cap and expel a small amount of adhesive to be sure both sides of the duo-pak cartridge are flowing evenly and freely. If simultaneous mixing of Part A and Part B is desired, attach the EPX mixing nozzle to the duo-pak cartridge and begin dispensing the adhesive. With the 200 ml and 400 ml cartridges, the nozzle must be attached before dispensing any material to prevent unmixed adhesive from getting into the applicator cartridge holder. A small quantity of material should be discarded until uniform color, consistency of product and even flow is evident. When mixing Part A and Part B manually, the components must be mixed in the ratio indicated in the typical uncured properties section. Complete mixing of the two components is required to obtain optimum properties. Two-part mixing/proportioning/dispensing equipment is available for intermittent or production line use. These systems are ideal for line uses because of their variable shot size and flow rate characteristics and are adaptable to most applications. 6 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White * DP460NS Surface Preparation The following surface preparations were used for substrates described in this Technical Data Sheet. A. Aluminum Etch Optimized FPL Etch - 3M (test method C-2803) 1. Alkaline degrease - Oakite 164 solution (9-11 oz./gallon water) at 190F 10F (88C 5C) for 10-20 minutes. Rinse immediately in large quantities of cold running water (3M test method C-2802). 2. Optimized FPL Etch Solution (1 liter): Material Amount Distilled Water 700 ml plus balance of liter (see below) Sodium Dichromate 28 to 67.3 grams Sulfuric Acid 287.9 to 310.0 grams Aluminum Chips 1.5 grams/liter of mixed solution To prepare 1 liter of this solution, dissolve sodium dichromate in 700 ml of distilled water. Add sulfuric acid and mix well. Add additional distilled water to fill to 1 liter. Heat mixed solution to 66 to 71C (150 to 160F). Dissolve 1.5 grams of 2024 bare aluminum chips per liter of mixed solution. Gentle agitation will help aluminum dissolve in about 24 hours. To FPL etch panels, place them in the above solution at 150 to 160F (66 to 71C) for 12 to 15 minutes. Note: Review and follow precautionary information provided by chemical suppliers prior to preparation of this etch solution. 3. Rinse immediately in large quantities of clear running tap water. 4. Dry - air dry approximately 15 minutes followed by force dry at 140F (60C) maximum for 10 minutes (minimum). 5. Both surface structure and chemistry play a significant role in determining the strength and permanence of bonded structures. It is therefore advisable to bond or prime freshly primed clean surfaces as soon as possible after surface preparation in order to avoid contamination and/or mechanical damage. Please contact your 3M sales representative for primer recommendations. B. Oakite Degrease Oakite 164 solutions (9-11 oz./gallon of water) at 190F 10F (88C 5C) for 2 minutes. Rinse immediately in large quantities of cold running water. C. MEK/Abrade/MEK Wipe surface with a methyl ethyl ketone (MEK) soaked swab, abrade and wipe with a MEK soaked swab.* Allow solvent to evaporate before applying adhesive. D. Isopropyl Alcohol Wipe Wipe surface with an isopropyl alcohol soaked swab.* Allow solvent to evaporate before applying adhesive. E. Isopropyl Alcohol/Abrade/Isopropyl Alcohol Wipe surface with an isopropyl alcohol soaked swab, abrade using clean fine grit abrasives, and wipe with an isopropyl alcohol soaked swab.* Then allow solvent to evaporate before applying adhesive. *Note: When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer's precautions and directions for use. 7 3MTM Scotch-WeldTM Epoxy Adhesives DP460 Off-White * DP460NS Storage Shelf Life Store products at 60-80F (15-27C) for maximum shelf life. These products have a shelf life of 24 months from date of manufacture in original containers at room temperature Technical Information The technical information, guidance, and other statements contained in this document or otherwise provided by 3M are based upon records, tests, or experience that 3M believes to be reliable, but the accuracy, completeness, and representative nature of such information is not guaranteed. 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