Technical Data Sheet Product 577 Worldwide Version, October 1995 PROPERTIES OF UNCURED MATERIAL Appearance Specific Gravity @ 25°C Viscosity @ 25°C, Pa.s (P) Brookfield RVT Spindle 5 @ 2.5 rpm @ 20 rpm DIN 54453, MV -1 D = 36 s after t=180secs Flash Point (COC), °C Range 80,000 24,000 50,000 to 110,000 17,000 to 31,000 6,750 >100 4,500 to 9,000 100 Br as s Ste el % of Full Strength on steel TYPICAL CURING PERFORMANCE Cure speed vs. substrate The rate of cure will depend on substrate used. The graph below shows the breakaway strength developed with time on M10 steel nuts and bolts compared to different materials and tested according to ISO 10964. 75 40 °C 75 Zinc dichromate 50 Stainless steel 25 25 0 30min 1hr 6hr 3hr 24hr 72hr Cure Time, Hours Cure speed vs. activator Where cure speed is unacceptably long, or large gaps are present, applying activator to the surface will improve cure speed. The graph below shows the shear strength developed with time using ACTIVATOR N and T on M10 Zinc Dichromate steel nuts and bolts and tested according to ISO 10964. 100 75 No 50 25 r to va i t Ac tN Ac tT Ac 0 5min10min 30min 1hr 3hr 6hr 24hr 72hr Cure Time, Hours 0 5min10min 30min 1hr 3hr 6hr 24hr 72hr Cure Time, Hours Cure speed vs. bond gap The rate of cure will depend on the bondline gap. Gaps in threaded fasteners depend on thread type, quality and size. The following graph shows shear strength developed with time on steel pins and collars at different controlled gaps and tested according to ISO 10123. TYPICAL PROPERTIES OF CURED MATERIAL Physical Properties Coefficient of thermal expansion, ASTM D696, K-1 Coefficient of thermal conductivity, ASTM C177, W.m1K-1 Specific Heat , kJ.kg-1K-1 80 x 10-6 0.1 0.3 PERFORMANCE OF CURED MATERIAL (After 24 hr at 22°C, on steel) Typical 100 % of Full Strength on steel C 5° 50 5min10min % of Full Strength on steel Chemical Type Typical Value Dimethacrylate ester Yellow, fluorescent 1.09 100 22 °C TYPICAL APPLICATIONS Used to seal metal threaded fittings. Particularly suitable for use on stainless steel without the need for surface activation. Cure speed vs. temperature The rate of cure will depend on the ambient temperature. The graph below shows the breakaway strength developed with time at different temperatures on M10 steel nuts and bolts and tested according to ISO 10964. % of Full Strength on steel PRODUCT DESCRIPTION LOCTITE® Product 577 is a single component, medium strength, thixotropic anaerobic sealant with fast curing properties. The product cures rapidly when confined in the absence of air between close fitting metal surfaces. 0.05mm Breakaway Torque, ISO 10964, N.m (lb.in) Prevail Torque, ISO 10964, N.m (lb.in) Breakloose Torque, DIN 54454, N.m (lb.in) Max. Prevail Torque, DIN 54454, N.m (lb.in) 75 0.15mm 50 0.25mm 25 Value 11 (97) 6 (53) 17 (150) 17 (150) Range 6 to 15 (53 to 133) 2.5 to 9 (22 to 80) 9 to 25 (80 to 221) 9 to 25 (80 to 221) 0 5min10min 30min 1hr 3hr 6hr 24hr 72hr Cure Time, Hours NOT FOR PRODUCT SPECIFICATIONS THE TECHNICAL DATA CONTAINED HEREIN ARE INTENDED AS REFERENCE ONLY. PLEASE CONTACT LOCTITE CORPORATION QUALITY DEPARTMENT FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS PRODUCT. ROCKY HILL, CT FAX: +1 (860)-571-5473 DUBLIN, IRELAND FAX: +353-(1)-451 - 9959 TDS 577 October 1995 TYPICAL ENVIRONMENTAL RESISTANCE The following tests refer to the effect of environment on strength. This is not a measure of sealing performance. Test Procedure: Substrate: Cure Procedure: DIN 54454 Breakloose Torque Zn Phosphate M10 Nuts & Bolts 1 week at 22°C. Directions for use For best performance surfaces should be clean and free of grease. Product should be applied to the bolt in sufficient quantity to fill all engaged threads. This product performs best in thin bond gaps, (0.05mm). Very large thread sizes may create large gaps which will affect cure speed and strength. This product is designed to give controlled friction, (torque/tension ratio), during assembly. In critical tightening applications this ratio. Hot Strength Tested at temperature. % RT Strength 100 75 50 25 0 0 100 50 150 Temperature, °C Heat Ageing Aged at temperature indicated and tested at 22°C. % Initial Strength, at RT This product is not normally recommended for use on plastics (particularly thermoplastic materials where stress cracking of the plastic could result). Users are recommended to confirm compatibility of the product with such substrates. 100 120°C Storage Product shall be ideally stored in a cool, dry location in unopened containers at a temperature between 8°C to 28°C (46°F to 82°F) unless otherwise labelled. Optimal storage is at the lower half of this temperature range. To prevent contamination of unused product, do not return any material to its original container. For further specific shelf life information, contact your local Technical Service Centre. Data Ranges The data contained herein may be reported as a typical value and/or range (based on the mean value ±2 standard deviations). Values are based on actual test data and are verified on a periodic basis. 75 150°C 50 25 0 0 1,000 2,000 Hours 3,000 4,000 5,000 Chemical / Solvent Resistance Aged under conditions indicated and tested at 22°C. Solvent Temp. Motor Oil Unleaded Petrol Brake Fluid Ethanol Acetone Water/Glycol (50%/50%) 125°C 22°C 22°C 22°C 22°C 87°C % Initial Strength retained at 100 hr 500 hr 1000 hr 100 100 100 100 100 100 100 100 95 100 100 95 90 80 65 100 90 90 GENERAL INFORMATION This product is not recommended for use in pure oxygen and/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidising materials. Note The data contained herein are furnished for information only and are believed to be reliable. We cannot assume responsibility for the results obtained by others over whose methods we have no control. It is the user's responsibility to determine suitability for the user's purpose of any production methods mentioned herein and to adopt such precautions as may be advisable for the protection of property and of persons against any hazards that may be involved in the handling and use thereof. In light of the foregoing, Loctite Corporation specifically disclaims all warranties expressed or implied, including warranties of merchantability or fitness for a particular purpose, arising from sale or use of Loctite Corporation’s products. Loctite Corporation specifically disclaims any liability for consequential or incidental damages of any kind, including lost profits. The discussion herein of various processes or compositions is not to be interpreted as representation that they are free from domination of patents owned by others or as a licence under any Loctite Corporation patents that may cover such processes or compositions. We recommend that each prospective user test his proposed application before repetitive use, using this data as a guide. This product may be covered by one or more United States or foreign patents or patent applications. For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS). Where aqueous washing systems are used to clean the surfaces before bonding, it is important to check for compatibility of the washing solution with the adhesive. In some cases these aqueous washes can affect the cure and performance of the adhesive. Loctite is a Registered Trademark of Loctite Corporation, Hartford, CT 06106