1 Technical Data Sheet LOCTITE 680 . (TDS for the new formulation of LOCTITE 680 ) September-2013. PRODUCT DESCRIPTION TYPICAL CURING PERFORMANCE. LOCTITE 680 provides the following product characteristics: Cure Speed vs. Substrate Technology Acrylic The rate of cure will depend on the substrate used. The graph Chemical Type Methacrylate ester below shows the shear strength developed with time on steel Appearance (uncured) Green liquidLMS pins and collars compared to different materials and tested Fluorescence Positive under UV lightLMS according to ISO 10123. Components One component - requires no mixing Viscosity Medium 100. % of Full Strength on Steel Steel Cure Anaerobic Secondary Cure Activator 75. Application Retaining Stainless steel Strength High 50 Aluminum LOCTITE 680 is designed for the bonding of cylindrical fitting parts, particularly where low viscosity is required.
2 The product cures when confined in the absence of air between 25. close fitting metal surfaces and prevents loosening and leakage from shock and vibration. LOCTITE 680 provides 0. robust curing performance. It not only works on active metals 30min 1h 3h 6h 24h 72h 168h Cure Time ( mild steel) but also on passive substrates such as stainless steel and plated surfaces. The product offers high temperature performance and oil tolerance. It tolerates minor Cure Speed vs. Bond Gap surface contaminations from various oils, such as cutting, The rate of cure will depend on the bondline gap. The following lubrication, anti-corrosion and protection fluids. graph shows shear strength developed with time on steel pins and collars at different controlled gaps and tested according to This Technical Data Sheet is valid for LOCTITE 680 ISO 10123.
3 Manufactured from the dates outlined in the "Manufacturing Date Reference" section. 100. % of Full Strength on Steel NSF International Certified to ANSI/NSF Standard 61 for use in commercial and residential potable water systems not exceeding 82 C. Note: 75 mm This is a regional approval. Please contact your local Technical mm Service Center for more information and clarification. mm 50. TYPICAL PROPERTIES OF UNCURED MATERIAL. Specific Gravity @ 25 C 25. Viscosity, Brookfield - RVT, 25 C, mPa s (cP): Spindle 3, speed 20 rpm, 750 to 1,750 LMS 0. Viscosity, Cone & Plate, 25 C, mPa s (cP): 30min 1h 3h 6h 24h 72h 168h Cure Time Shear rate 129 s-1 650 to 1,850. Flash Point - See MSDS. TDS LOCTITE 680 , September-2013. Cure Speed vs. Temperature Cured for 7 days @ 22 C. The rate of cure will depend on the temperature.
4 The graph Compressive Shear Strength, ISO 10123: below shows the shear strength developed with time at Steel pins and collars N/mm 26. different temperatures on steel pins and collars and tested (psi) (3,740). according to ISO 10123. Stainless Steel pins and collars N/mm 28. (psi) (4,030). Aluminum pins and collars N/mm 16. 100 (psi) (2,280). % of Full Strength on Steel 22 C. Cured for 24 hours @ 22 C. 75 5 C. Breakaway Torque, ISO 10964: M10 black oxide bolts and mild steel N m 55. nuts ( ) (315). 50 3/8 x 16 steel nuts (grade 2) and bolts N m 26. (grade 5) ( ) (150). Prevail Torque, ISO 10964: 25 M10 black oxide bolts and mild steel N m 44. nuts ( ) (250). 3/8 x 16 phosphate and oil grade 2 N m 29. 0 nuts and grade 5 bolts ( ) (165). 30min 1h 3h 6h 24h 72h 168h Breakloose Torque, ISO 10964, Pre-torqued to 5 N m: Cure Time 3/8 x 16 steel nuts (grade 2) and bolts N m 34.
5 (grade 5) ( ) (195). M10 zinc phosphate nuts and bolts N m 47. Cure Speed vs. Activator ( ) (270). The graph below shows the shear strength developed with M10 stainless steel nuts and bolts N m 29. time on stainless steel pins and collars using Activator 7471 , ( ) (165). 7649 and 7091 and tested according to ISO 10123. Prevail Torque, ISO 10964, Pre-torqued to 5 N m: 3/8 x 16 steel nuts (grade 2) and bolts N m 30. (grade 5) ( ) (170). 100 No activator M10 zinc phosphate nuts and bolts N m 33. % of Full Strength on Steel ( ) (190). Activator 7091 M10 stainless steel nuts and bolts N m 32. 75 ( ) (185).. Activator 7471. 50. TYPICAL ENVIRONMENTAL RESISTANCE. Activator 7649 Cured for 1 week @ 22 C. 25. Compressive Shear Strength, ISO 10123: Steel pins and collars 0. 30min 1h 3h 6h 24h 72h 168h Cure Time Hot Strength Tested at temperature TYPICAL PROPERTIES OF CURED MATERIAL 125.
6 Physical Properties: % Strength @ 22 C. Coefficient of Thermal Expansion, 52 10-06 100. ISO 11359-2, K-1. 75. 50. TYPICAL PERFORMANCE OF CURED MATERIAL 25. Adhesive Properties Cured for 1 hour @ 93 C, tested @ 22 C 0. -25 0 25 50 75 100 125 150 175 200. Compressive Shear Strength, ISO 10123: Temperature, C. Steel pins and collars N/mm LMS. (psi) ( 3,500). Cured for 24 hours @ 22 C. Compressive Shear Strength, ISO 10123: Steel pins and collars N/mm (psi) ( 2,800). Henkel Americas Henkel Europe Henkel Asia Pacific + + + For the most direct access to local sales and technical support visit: TDS LOCTITE 680 , September-2013. Heat Aging present, use activator and allow to dry. Aged at temperature indicated and tested @ 22 C 3. For Slip Fitted Assemblies, apply adhesive around the 200 leading edge of the pin and the inside of the collar and % Initial Strength @ 22 C.
7 Use a rotating motion during assembly to ensure good 175 120 C coverage. 150 150 C 4. For Press Fitted Assemblies, apply adhesive thoroughly 125 to both bond surfaces and assemble at high press on 180 C rates. 100. 5. For Shrink Fitted Assemblies, the adhesive should be 75 coated onto the part to produce a smooth, even film of material. If heating the hub for assembly, coat the pin. If 50. the pin is to be cooled for assembly, coat the hub. If both 25 200 C heating and cooling is to be done, apply material to cooled 0 part. Avoid condensation on cooled parts. 0 500 1000 1500 2000 2500 6. Parts should not be disturbed until sufficient handling Exposure Time, hours strength is achieved. Chemical/Solvent Resistance For Disassembly Aged under conditions indicated and tested @ 22 C.
8 1. Remove with standard hand tools. % of initial strength 2. If needed, apply localized heat to the assembly to Environment C 100 h 500 h 1000 h approximately 250 C. Disassemble while hot. Motor oil 3. If this temperature is not possible, heat as much as 125 135 160 145 possible and use mechanical aids. (5W40 -Synthetic). Unleaded gasoline 22 85 95 110. For Cleanup Brake fluid 22 85 100 110 1. Cured product can be removed with a combination of Water/glycol 50/50 87 115 135 135 soaking in a LOCTITE solvent and mechanical abrasion Ethanol 22 85 105 100 such as a wire brush. Acetone 22 75 105 100. B100 Bio-Diesel 22 90 110 110 LOCTITE Material SpecificationLMS. DEF (AdBlue ) 22 95 105 110 LMS dated August-6, 2013. Test reports for each batch are E85 Ethanol fuel 22 85 105 105 available for the indicated properties.
9 LMS test reports include selected QC test parameters considered appropriate to Sodium Hydroxide, 20% 22 90 90 90. specifications for customer use. Additionally, comprehensive Phosphoric Acid, 10% 22 85 75 80 controls are in place to assure product quality and consistency. Special customer specification requirements may GENERAL INFORMATION be coordinated through Henkel Quality. This product is not recommended for use in pure oxygen and/or oxygen rich systems and should not be selected as Storage a sealant for chlorine or other strong oxidizing materials. Store product in the unopened container in a dry location. Storage information may be indicated on the product container For safe handling information on this product, consult the labeling. Material Safety Data Sheet (MSDS).
10 Optimal Storage: 8 C to 21 C. Storage below 8 C or greater than 28 C can adversely affect product properties. Material removed from containers may be contaminated during Where aqueous washing systems are used to clean the use. Do not return product to the original container. Henkel surfaces before bonding, it is important to check for Corporation cannot assume responsibility for product which compatibility of the washing solution with the adhesive. In has been contaminated or stored under conditions other than some cases these aqueous washes can affect the cure and those previously indicated. If additional information is required, performance of the adhesive. please contact your local Technical Service Center or Customer Service Representative. This product is not normally recommended for use on plastics (particularly thermoplastic materials where stress cracking of the plastic could result).