Technical Data Sheet Product 406 Worldwide Version, February 1996 TYPICAL APPLICATIONS Rapid bonding of a wide range of metal, plastic or elastomeric materials. Particularly suitable for bonding plastic or rubber (EPDM) parts where very fast fixturing is required. PROPERTIES OF UNCURED MATERIAL Typical Value Chemical Type Ethyl Cyanoacrylate Appearance Clear liquid 1.05 Specific Gravity @ 25°C Viscosity @ 25°C, mPa.s (cP) Brookfield LVF Spindle 1 @ 30 rpm 20 >80 Flash Point (TCC), °C 100 60%RH 40%RH 75 50 20%RH 25 Range 0 0 10 20 30 40 50 60 Cure Time, Seconds 10 to 30 TYPICAL CURING PERFORMANCE Under normal conditions, the surface moisture initiates the hardening process. Although functional strength is developed in a relatively short time, curing continues for at least 24 hours before full chemical/solvent resistance is developed. Cure speed vs. substrate The rate of cure will depend on substrate used. The table below shows the fixture time achieved on different materials at 22°C , 50% relative humidity. This is defined as the time to develop a shear strength of 0.1 N/mm2 (14.5 psi) tested on specimens according to ASTM D1002. Substrate Steel (degreased) Aluminium Zinc dichromate Neoprene Nitrile rubber ABS PVC Polycarbonate Phenolic materials Cure speed vs. humidity The rate of cure will depend on the ambient relative humidity. The graph below shows the tensile strength developed with time on Buna N rubber at different levels of humidity. %of Full Strength PRODUCT DESCRIPTION LOCTITE® Product 406 is a low viscosity, fast curing, single component cyanoacrylate adhesive. It is specifically formulated for difficult to bond substrates. Fixture Time, seconds 10 to 20 2 to 10 30 to 90 <5 <5 2 to 10 2 to 10 15 to 50 5 to 15 Cure speed vs. bond gap The rate of cure will depend on the bondline gap. High cure speed is favoured by thin bond lines. Increasing the bond gap will slow down the rate of cure. Cure speed vs. activator Where cure speed is unacceptably long due to large gaps or low relative humidity applying activator to the surface will improve cure speed. However , this can reduce the ultimate strength of the bond, therefore testing is recommended to confirm effect. TYPICAL PROPERTIES OF CURED MATERIAL Physical Properties Coefficient of thermal expansion, ASTM D696, K-1 Coefficient of thermal conductivity, ASTM C177, W.m1K-1 Glass transition temperature, ASTM E228, °C 80 x 10-6 0.1 120 Electrical Properties Constant Dielectric constant & loss, 25°C, ASTM D150, measured at 100Hz 1kHz 10 kHz Volume resistivity, ASTM D257, Ω.cm Loss 2.65 2.75 2.75 <0.02 <0.02 <0.02 1x 1016 1x 1016 25 Surface resistivity , ASTM D257, Ω Dielectric strength, ASTM D149, kV/mm PERFORMANCE OF CURED MATERIAL Typical (After 24 hr at 22°C) Shear Strength, ASTM D1002, DIN 53283 Grit Blasted Steel, N/mm² (psi) Etched Aluminium, N/mm² (psi) Zinc dichromate, N/mm² (psi) ABS, N/mm² (psi) PVC, N/mm² (psi) Polycarbonate, N/mm² (psi) Phenolic, N/mm² (psi) Neoprene rubber, N/mm² (psi) Nitrile rubber, N/mm² (psi) Value Range 22 (3200) 15 (2200) 10 (1450) 5* (700) 5* (700) 4* (600) 10 (1450) 10 (1450) 10 (1450) 18 to 26 (2600 to 3800) 11 to 19 (1600 to 2800) 6 to 14 (870 to 2000) 4 to 6 (600 to 800) 4 to 6 (600 to 800) 3.5 to 4.5 (550 to 650) 5 to 15 (730 to 2900) 5 to 15 (730 to 2200) 5 to 15 (730 to 2200) Tensile Strength, ASTM D2095, DIN 53282 Grit Blasted Steel, N/mm² 18.5 (psi) (2680) Buna N rubber, N/mm² 10 (psi) (1450) * Adhesive exceeds strength of bonded material 12 to 25 (1740 to 3630) 5 to 15 (730 to 2200) 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 406 February 1996 TYPICAL ENVIRONMENTAL RESISTANCE Test Procedure : Substrate: Cure procedure: Shear Strength ASTM D1002/DIN 53283 Grit blasted mild steel laps 1 week at 22°C For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS). Hot Strength Tested at temperature. Directions for use For best performance surfaces should be clean and free of grease. This product performs best in thin bond gaps, (0.05mm). Excess adhesive can be dissolved with Loctite clean up solvents, nitromethane or acetone. 100 % RT Strength 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. 75 50 25 0 0 50 100 150 Temperature, °C Heat Ageing Aged at temperature indicated and tested at 22°C. % Initial Strength at RT 125 100 60°C 75 80°C 50 100°C 25 0 0 1,000 2,000 3,000 4,000 5,000 Hours Chemical / Solvent Resistance Aged under conditions indicated and tested at 22°C. Solvent Motor Oil Leaded Petrol Water/Glycol (50%/50%) Ethanol Isopropanol Freon TA Humidity 95% RH Humidity 95% RH polycarbonate Temp. 40°C 22°C 22°C 22°C 22°C 22°C 40°C 40°C %Initial strength retained at 100 hr 500 hr 1000 hr 100 100 95 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 80 75 65 100 100 100 Storage Product shall be ideally stored in a cool, dry location in unopened containers at a temperature between 8°C to 21°C (46°F to 70°F) unless otherwise labelled. Optimal storage conditions for unopened containers of cyanoacrylate products are achieved with refrigeration: 2°C to 8°C (36°F to 46°F). Refrigerated packages shall be allowed to return to room temperature prior to opening and use. To prevent contamination of unused product, do not return any material to its original container. For 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. 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. Loctite is a Registered Trademark of Loctite Corporation, Hartford, CT 06106