Technical Data Sheet Product 542 75 25 0 5min10min 3hr 6hr 72hr 24hr 150 >100 100 to 200 100 5°C 75 22 °C 925 to 2,775 350 to 700 Cure speed vs. temperature The rate of cure will depend on the ambient temperature. The following graph shows the breakaway strength developed with time at different temperatures on M10 steel nuts and bolts and tested according to ISO 10964. 40 °C 1,850 525 Range % of Full Strength on steel Typical Value Dimethacrylate ester Brown Liquid 1.06 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. 50 25 0 5min10min 30min 1hr 3hr 6hr 72hr 24hr Cure Time, Hours 100 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 following graph shows breakaway strength developed with time using ACTIVATOR N and T on M10 Zinc Dichromate steel nuts & bolts and tested according to ISO 10964. 75 Brass 50 Steel 25 Zinc dichromate Stainless Steel 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. % of Full Strength on steel % of Full Strength on steel 30min 1hr Cure Time, Hours PROPERTIES OF UNCURED MATERIAL Chemical Type Appearance Specific Gravity @ 25°C Viscosity @ 25°C, mPa.s (cP) Brookfield RVT Spindle 5 @ 2.5 rpm @ 20 rpm DIN 54453, MV D = 277 s-1 after t=180secs Flash Point (COC), °C m m 5m 0.0 m 50 0. 25 m TYPICAL APPLICATIONS Used to lock and seal hydraulic and pneumatic fittings. Recommended for sealing threaded metal fittings which should be fully torqued up. 100 0. 15 m PRODUCT DESCRIPTION LOCTITE® Product 542 is a single component thixotropic, anaerobic pipe sealant material. This product cures when confined in the absence of air between close fitting metal surfaces. This grade develops medium strength to facilitate disassembly. % of Full Strength on steel Worldwide Version, October 1995 100 75 No 50 r to va i t Ac tN Ac tT Ac 25 0 5min10min 30min 1hr 3hr 6hr 24hr 72hr Cure Time, Hours TYPICAL PROPERTIES OF CURED MATERIAL Physical Properties Coefficient of thermal expansion, ASTM D696, K-1 Coefficient of thermal conductivity, ASTM C177, W.m-1 K-1 Specific Heat , kJ.kg-1 K-1 80 x 10-6 0.1 0.3 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 542 October 1995 PERFORMANCE OF CURED MATERIAL (After 24 hours at 22°C on steel) Typical Value Range 15 8 to 20 (130) (70 to 180) 9 6 to 13 (80) (50 to 115) 25 15 to 35 (220) (130 to 310) 25 15 to 35 (220) (130 to 310) Breakaway Torque, ISO 10964 (4.3) N.m (lb.in) Prevail Torque, ISO 10964 (4.5), N.m (lb.in) Breakloose Torque, DIN 54454, N.m (lb.in) Maximum Prevail Torque, DIN 54454, N.m (lb.in) TYPICAL ENVIRONMENTAL RESISTANCE Test Procedure : Breakloose Torque DIN 54454 Substrate: M10 Zinc Phosphate Nuts and Bolts Cure procedure: 1 week at 22°C Hot Strength Tested at temperature. % RT Strength 100 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. 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 should be confirmed. 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. 75 50 25 0 0 50 100 150 Temperature, °C Heat Ageing Aged at temperature indicated and tested at 22°C. 100 % Initial Strength, at RT 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. 120°C 75 50 150°C 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 Motor Oil Leaded petrol Brake fluid Water/glycol Ethanol Acetone Temp. 125°C 22°C 22°C 87°C 22°C 22°C % Initial Strength retained at 100 hr 500 hr 1000 hr 100 100 100 90 100 100 100 100 100 90 100 80 100 95 95 90 95 80 Data Ranges The technical data contained herein are intended for reference and should not be used for preparing specifications. Please contact the Loctite Technical Service Department or local representative for assistance and recommendations on specification limits for these 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 license under any Loctite Corporation patents which 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. 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. For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS). Loctite is a Registered Trademark of Loctite Corporation, Hartford, CT 06106