Technical Data | July 2018 3MTM Thermally Conductive Epoxy Adhesive TC-2810 Product Description 3MTM Thermally Conductive Epoxy Adhesive TC-2810 is a thermally conductive, 2-part epoxy using high performance filler for good thermal conductivity with high adhesion. Key Features * * * * * * * * High adhesive strength Slight tack allows pre-assembly Good surface wet out Low viscosity for potting applications Good gap filling Thin bonding line Good thermal conductivity (0.8-1.4 W/m-K) Low chloride (Cl) ion content and outgassing Typical Uncured Properties Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. 3MTM Thermally Conductive Epoxy Adhesive TC-2810 Property Value *Viscosity Base Accelerator Mixed 40,000-90,000 cps 11,000-21,000 cps 40,000-80,000 cps Base Resin Base Epoxy Amine Accelerator Filler Mix Ratio (B:A) Worklife Ceramic Volume 24% by weight 2:1 100-120 minutes at 23C (72F) New Weight (lb/gal) Base Accelerator Mixed 10.58 10.28 10.37 *Viscosity is measured using 40 mm, 2 cone, at 10 S-1. Applications * * * * LED Assembly Thermal fixing battery cell and thermal management for EV/HEV battery Potting applications General gap filling Application Techniques and Product Use For bonding rigid to rigid parts, it is suggested that the bond line thickness and edge fill be designed to optimize: 1. Bond Strength 2. Thermal Resistance A typical suggested bond line is in the 3-7 mil (0.076- 0.018mm) thickness range For improved thermal performance (lower thermal resistance), a thinner bond line is suggested. A thinner bond line can reduce the bond strength so each application needs to be tested to find correct balance between thermal and mechanical properties. Bond Line Thickness vs Thermal Resistance vs Bond Strength A "fillet" at the edge of a bond line is suggested to increase bond strength. The fillets are formed as the epoxy squeezes out past the side edges. Fillets can add strength to the assembly. 3MTM Thermal Conductive Epoxy TC-2810 is supplied in dual syringe plastic duo-pak cartridges as part of the 3MTM Scotch-WeldTM EPXTM Plus II Applicator. The duo-pak cartridges are supplied in 37ml or 50 ml configuration. To use the cartridge simply insert the duo-pak cartridge into the EPX Plus II Applicator and start the plunger into the cylinders using light pressure on the trigger. Next, remove the duo-pak cartridge cap and expel and discard a small amount of adhesive to be sure both sides of the duo-pak cartridge are flowing evenly and freely (ie: no voids, "plugs of adhesive", dis-continuity in flow, etc.) Once even side to side and uniform flow from both sides of the duo-pak is confirmed, attach the 3MTM Scotch-WeldTM EPXTM Mixing Nozzle to the duo-pak cartridge to ensure proper and uniform missing of the Part A and Part B and begin dispensing the adhesive. Partially used cartridges must follow the above use instructions to ensure consistent product performance. Complete and uniform mixing as noted above of the two components is required to obtain consistent product performance. 3MTM Scotch-WeldTM EPXTM Plus II Applicator and 3MTM Scotch-WeldTM EPXTM Mixing Nozzle Use only 3MTM EPXTM Plus II Applicator and Mix Nozzles to ensure optimum product performance. Typical Cured Physical Properties and Performance Characteristics Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Final product specifications and testing methods will be outlined in the products Certificate of Analysis (COA) that is shipped with the commercialized product once it is approved by 3M for general commercialization and development work is completed. 3MTM Thermally Conductive Epoxy Adhesive TC-2810 Property Method* Color Glass Transition Temperature Thermal Coefficient of Expansion ASTM 1356 ASTM E831 Thermal Conductivity Volume Resistivity Dielectric Breakdown Voltage Dielectric Constant Total Outgassing ASTM D5470 ASTM D257 ASTM D149 ASTM 150 ASTM 5116 Siloxane Outgassing Extractable Chloride ASTM 5116 ASTM D7994 *Methods listed as ASTM are tested in accordance with the ASTM method noted *Disclaimer if applicable to chart above Value Cream See Chart on page 3 85 X 10 -6/K (below Tg) 240 X10 -6/K (above Tg) 0.80-1.4 W/m-K 1.5 x 1014 ohm-cm 44.0 kV/mm (1119 Volts/mil) 4.1 <1000 g/g (GC/MS, 85 C/3 hours) <5 g/g (GC/MS, 85C/3 hours) <30 g/g (hexane extraction) Curing Cure Schedule: 23C/24 hours 50C/270 minutes 70C/90 minutes 90C/30 minutes 120C/10 minutes Please contact 3M Application Engineers for more data on curing conditions. Typical Shear Strength, Peel Strength, Tg vs Cure Temperature/Time Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Final product specifications and testing methods will be outlined in the products Certificate of Analysis (COA) that is shipped with the commercialized product once it is approved by 3M for general commercialization and development work is completed. 3MTM Thermally Conductive Epoxy Adhesive TC-2810 Overlap Shear N/mm (psi) (ASTM D-1002)* T-Peel (piw) (ASTM D-1876) Shore D Hardness (ASTM D2240) Tg (C) (ASTM E-1356) 2 23 C (72 F) 24 hours 90 C (194 F) 30 minutes 120 C (248 F) 10 minutes 18.62 (2700) 18.62 (2700) 18.62 (2700) 7 7 7 75 80 80 60 73 64 *Methods listed as ASTM are tested in accordance with the ASTM method noted *Disclaimer if applicable to chart above Storage and Shelf Life The shelf life of 3MTM Thermally Conductive Epoxy Adhesive TC-2810 is 12 months from the date of manufacture when stored in original cartons at 21 C (70 F) and 50% relative humidity Certificate of Analysis (COA) The 3M Certificate of Analysis (COA) for this product is established when the product is commercially available from 3M. The commercially available product will have a COA specification established. The COA contains the 3M specifications and test methods for the products performance limits that the product will be supplied against. The 3M product is supplied to 3M COA test specifications and the COA test methods. Contact your local 3M representative for this product's COA. Final product specifications and testing methods will be outlined in the products Certificate of Analysis (COA) that is provided once the product is approved by 3M for general commercialization and development work is completed. Safety Data Sheet: Consult Safety Data Sheet before use. Technical Information: The technical information, recommendations and other statements contained in this document are based upon tests or experience that 3M believes are reliable, but the accuracy or completeness of such information is not guaranteed. 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If the 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M's option, replacement of the 3M product or refund of the purchase price. Limitation of Liability: Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability. Electronics Materials Solutions Division 3M Center, Building 224-3N-11 St. Paul, MN 55144-1000 1-800-251-8634 phone 651-778-4244 fax www.3M.com/electronics 3M, EPX and Scotch-Weld are trademarks of 3M Company. Please recycle. (c)3M 2018. All rights reserved. 60-5005-0125-3