1 Technical Data Sheet LOCTITE 577 . (TDS for the new formulation of LOCTITE 577 ) August-2016. PRODUCT DESCRIPTION approval. Please contact your local Technical Service Center LOCTITE 577 provides the following product for more information and clarification. characteristics: Technology Acrylic EN 751-1. Chemical Type Dimethacrylate ester Sealing materials for metallic threaded joints in contact Appearance (uncured) Yellow pasteLMS with 1st, 2nd, and 3rd family gases and hot water; Part 1: Fluorescence Positive under UV lightLMS Anaerobic jointing compounds. LOCTITE 577 has been Components One component - tested and conforms to EN 751-1 for a class H compound and requires no mixing carries the DVGW certification. Viscosity High, thixotropic Cure Anaerobic Secondary Cure Activator TYPICAL PROPERTIES OF UNCURED MATERIAL. Application Thread sealing Specific Gravity @ 25 C Strength Medium Viscosity, Brookfield - RVT, 25 C, mPa s (cP): Spindle 6, speed rpm 70,000 to 130,000 LMS.
2 Spindle 6, speed 20 rpm 16,000 to 33,000 LMS. This Technical Data Sheet is valid for LOCTITE 577 . manufactured from the dates outlined in the Flash Point - See SDS. "Manufacturing Date Reference" section TYPICAL CURING PERFORMANCE. LOCTITE 577 is designed for the locking and sealing of metal threaded pipes and fittings. Particularly suitable for use Cure Speed vs. Substrate on stainless steel without the need for surface activation. The The rate of cure will depend on the substrate used. The graph product cures when confined in the absence of air between below shows the breakaway strength developed with time on close fitting metal surfaces and prevents loosening and M10 steel nuts and bolts compared to different materials and leakage from shock and vibration. The thixotropic nature of tested according to ISO 10964. LOCTITE 577 reduces the migration of liquid product after application to the substrate.
3 LOCTITE 577 provides robust 100. % of Full Strength on Steel curing performance. It not only works on active metals ( Steel brass, copper) but also on passive substrates such as stainless 75. steel and plated surfaces. The product offers gap performance Brass to mm ( in), high temperature performance and ate ichrom contamination tolerance. It cures in the presence of minor 50 zinc d surface contaminations from various oils, such as cutting, lubrication, anti-corrosion and protection fluids and cleaners 25. containing surfactants and corrosion inhibitors. Stainless steel NSF International 0. 1min 5min 30min 1h 3h 6h 24h 72h 168h Registered to NSF Category P1 for use as a sealant where Cure Time there is no possibilty of food contact in and around food processing areas. Note: This is a regional approval. Please contact your local Technical Service Center for more Cure Speed vs.
4 Bond Gap information and clarification. The rate of cure will depend on the bondline gap. Gaps in threaded fasteners depends on thread type, quality and size. The following graph shows shear strength developed with time Approved by the Australian Gas Association Certificate on steel pins and collars at different controlled gaps and tested number 4787 Class III rated working pressure 2000 kPa, according to ISO 10123. working temperature -10 to 135 C. Note: This is a regional TDS LOCTITE 577 , August-2016. % of Full Strength on Steel 100 TYPICAL PROPERTIES OF CURED MATERIAL. Physical Properties: mm Specific Heat, kJ/(kg K) 75 mm Tensile Strength, ISO 37 N/mm (psi) (190). Tensile Modulus, ISO 37 N/mm 168. 50 (psi) (24,350). mm 25 TYPICAL PERFORMANCE OF CURED MATERIAL. Adhesive Properties After 24 hours @ 22 C. 0. Breakaway Torque, ISO 10964: 1min 5min 30min 1h 3h 6h 24h 72h 168h Cure Time M10 steel nuts and bolts N m 33.
5 ( ) (295). M10 brass nuts and bolts N m 23. Cure Speed vs. Temperature ( ) (205). The rate of cure will depend on the temperature. The graph M10 zinc dichromate nuts and bolts N m 20. below shows the breakaway strength developed with time at ( ) (175). different temperatures on M10 steel nuts and bolts and tested M10 stainless steel nuts and bolts N m 15. according to ISO 10964. ( ) (135). M10 zinc phosphate nuts and bolts N m 30. ( ) (265). 150. % of Full Strength on Steel M6 steel nuts and bolts N m 7. ( ) (62). 125. 5 C M16 steel nuts and bolts N m 69. 22 C ( ) (615). 100. 3/8 x 16 steel nuts (grade 2) and bolts N m 33. (grade 5) ( ) (295). 75. 40 C. 50 Prevail Torque, ISO 10964: M10 steel nuts and bolts N m 25 ( ) (22). M10 brass nuts and bolts N m 0 ( ) (12). 1min 5min 30min 1h 3h 6h 24h 72h 168h M10 zinc dichromate nuts and bolts N m Cure Time ( ) (33).
6 M10 stainless steel nuts and bolts N m ( ) (17). Cure Speed vs. Activator M10 zinc phosphate nuts and bolts N m Where cure speed is unacceptably long, or large gaps are ( ) (16). present, applying activator to the surface will improve cure M6 steel nuts and bolts N m speed. The graph below shows the breakaway strength ( ) ( ). developed with time on M10 zinc dichromate steel nuts and M16 steel nuts and bolts N m bolts using Activator SF 7471 and SF 7649 and tested ( ) (66). according to ISO 10964. 3/8 x 16 steel nuts (grade 2) and bolts N m (grade 5) ( ) (34). 100. % of Full Strength on Steel Breakloose Torque, ISO 10964, Pre-torqued to 5 N m: M10 steel nuts and bolts N m 27. 75 ( ) (240). No activator Max. Prevail Torque, ISO 10964, Pre-torqued to 5 N m: 50 F 7091 M10 steel nuts and bolts N m Activator S ( ) (18). SF 7471 . Activator 25.
7 Activator SF 7649 Compressive Shear Strength, ISO 10123: Steel pins and collars N/mm 5 LMS. 0. 1min 5min 30min 1h 3h 6h 24h 72h 168h (psi) (725). Cure Time After 1 week @ 22 C. Breakloose Torque, ISO 10964, Pre-torqued to 5 N m: M10 zinc phosphate nuts and bolts N m 30. ( ) (265). Henkel Americas Henkel Europe Henkel Asia Pacific + + + For the most direct access to local sales and technical support visit: TDS LOCTITE 577 , August-2016. TYPICAL ENVIRONMENTAL RESISTANCE This product is not recommended for use in pure oxygen Cured for 1 week @ 22 C and/or oxygen rich systems and should not be selected as Breakloose Torque, ISO 10964, Pre-torqued to 5 N m: a sealant for chlorine or other strong oxidizing materials. M10 zinc phosphate steel nuts and bolts For safe handling information on this product, consult the Safety Data Sheet (SDS). Where aqueous washing systems are used to clean the Hot Strength surfaces before bonding, it is important to check for Tested at temperature compatibility of the washing solution with the adhesive.
8 In 100. some cases these aqueous washes can affect the cure and performance of the adhesive. This product is not normally recommended for use on plastics % Strength @ 22 C. 75 (particularly thermoplastic materials where stress cracking of the plastic could result). Users are recommended to confirm compatibility of the product with such substrates. 50. Directions for use: For Assembly 25 1. For best results, clean all surfaces (external and internal). with a LOCTITE cleaning solvent and allow to dry. 0. 2. If the material is an inactive metal or the cure speed is 0 20 40 60 80 100 120 140 160 180 too slow, spray with LOCTITE SF 7471 or LOCTITE . Temperature, C SF 7649 and allow to dry. 3. Apply a 360 bead of product to the leading threads of Cold Strength the male fitting, leaving the first thread free. Force the This product has been tested to -75 C (-100 F).
9 This product material into the threads to thoroughly fill the voids. For may work below this temperature, but has not been tested. bigger threads and voids, adjust product amount accordingly and apply a 360 bead of product on the Heat Aging female threads also. Aged at temperature indicated and tested @ 22 C 4. Using compliant practices, assemble and wrench tighten 150 fittings in accordance with manufacturers recommendations. % Initial Strength @ 22 C. 120 C. 125 5. Properly tightened fittings will seal instantly to moderate pressures. For maximum pressure resistance and 100 150 C solvent resistance allow the product to cure a minimum of 180 C 24 hours. 75. For Disassembly 50 1. Remove with standard hand tools. 2. Where hand tools do not work because of excessive 25 engagement length or large diameters (over 1"), apply localized heat to approximately 250 C (480F).
10 0 Disassemble while hot. 0 200 400 600 800 1000. Exposure Time, hours For Cleanup 1. Cured product can be removed with a combination of Chemical/Solvent Resistance soaking in a LOCTITE solvent and mechanical Aged under conditions indicated and tested @ 22 C. abrasion such as a wire brush. % of initial strength Environment C 100 h 500 h 1000 h LOCTITE Material SpecificationLMS. Acetone 22 95 65 70 LMS dated November-30, 2015. Test reports for each batch DEF (AdBlue ) 22 125 125 130 are available for the indicated properties. LMS test reports Brake Fluid (DOT 4) 22 115 115 120 include selected QC test parameters considered appropriate to specifications for customer use. Additionally, comprehensive Ethanol 22 110 90 90 controls are in place to assure product quality and Motor oil 125 120 130 135 consistency. Special customer specification requirements may (5W30 -Synthetic) be coordinated through Henkel Quality.