 Hysol
® H4500
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| Methacrylate Adhesive | |
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Description Dexter Hysol H4500 is a highly thixotropic, two component, room temperature curing, 10:1 mix ratio methacrylate adhesive system formulated specifically for bonding metals such as stainless steel, steel and aluminum. The unique formulation of H4500 allows bonding to metals without the use of a primer. This adhesive contains a corrosion inhibiting additive to insure long term bond durability even when exposed to moisture prone environments. Hysol H4500 forms resilient bonds and maintains its strength over a wide range of temperatures with minimum surface preparation. Recommended Substrates: steel, aluminum, stainless steel, epoxy coated metal, SMC, and many plastics Features Internal metal primer100% reactive Superior impact and peel strength Excellent environmental resistance Little or no surface preparation Offers excellent tolerance to off-ratio mixing Rapid room temperature cure Non-sagging gaps filled to ½" Typical Uncured Properties Part A Part B Mixed Open Time@ 77°F - - 4 - 6 minutes Fixture Time @ 180°F - - 15 - 20 minutes Color Cream Tan Pale Yellow Viscosity, cps 25,000 – 35,000 35,000 – 45,000 - Brookfield HBT Spdl 6 @ 10 rpm Spdl 6 @ 10 rpm - Specific Gravity 1.01 1.06 1.01 Ponds per gallon 8.40 8.83 8.45 Mix Ratio By Weight 9.51 - - By Volume 10 1 - Typical Cured Properties Tensile Strength (psi) 3,400 – 3,600 ASTM D 638 Tensile Elongation (%) 20 – 30 ASTM D 638 Shore D Hardness 40 – 45 Performance Tensile Lap Shear Strength Tested after a minimum 24 hour cure. Bondline Test Average Failure Substrate Thickness, Mils Temp, °F Results, psi Mode Metals (per ASTM D1002) Aluminum 2024T3 Etched 5 -40 3500 Cohesive 5 -20 4100 Cohesive 5 75 4500 Cohesive 5 180 2600 Cohesive 5 250 780 Cohesive As received 5 77 3800 Cohesive Oil coated, 10W30 5 77 4000 Cohesive 5052 As received 5 77 2100 Cohesive Steel Smooth 5 77 3000 Cohesive Ground 5 77 3100 Cohesive Oil coated steel 5 77 4000 Cohesive 304 Stainless Steel 5 77 3100 Cohesive Oil coated stainless 5 77 3000 Cohesive Non-Metallic Substrates (per ASTM D3163) Acrylic 30 77 600 Stock Break ABS 30 77 750 Stock Break Polycarbonate 30 77 750 Stock Break FRP 30 77 800 Fiber Tear RTM 30 77 850 Fiber Tear Peel Strength (pli) per ASTM D 3167 Etched Aluminum 10 77 60 Cohesive Tensile Lap Shear after Environmental Exposure All exposures are for 30 days. Tested 24 hours after removal. FRP/FRP coupons are 1"by 1", 30 mil bondline; Aluminum is etched with 5 mil bondline. All samples cured three days at 77ºF prior to exposure. Values are psi. Note: All FRP/FRP bonds failed within the FRP. Environment FRP/FRP Aluminum/Aluminum Control 800 4500 Water at 77ºF 800 1000 Salt Water 700 250 100ºF/100%RH 800 600 10W30 Motor Oil 800 4100 Unleaded Gasoline 750 4000 Diesel Fuel 750 4000 Antifreeze 700 3300 Handling and Application Mixing: It is highly recommended that either meter mix equipment or cartridges with static mix nozzles be used to properly ratio and dispense the adhesive. For hand mixing, combine Part A and Part B in the correct ratio and mix thoroughly. Once mixed, H4500 should achieve a uniform color. This is important! Heat buildup during and after mixing is normal. To reduce the likelihood of exothermic reaction or excessive heat buildup, mix less than 100 grams at a time. Mixing smaller amounts will minimize heat buildup. Applying: Bonding surfaces should be clean, dry, and free of contamination. Extensive surface preparation is not required for H4500, and good bonds can be formed on most substrates after a solvent wipe. To assure maximum bond strength, surfaces must be mated within the adhesive's open time. Use enough material to completely fill the joint when parts are clamped. Curing: Parts should remain undisturbed during the interval of time between the material's open time and fixture time. After the fixture time is achieved the material has reached handling strength. Temperature below 55°F will slow the cure; above 85°F will accelerate cure rate. Clean Up: It is important to clean up excess adhesive from work area and application equipment before it hardens. Denatured alcohol and many common industrial solvents are suitable for removing uncured adhesive. Hysol H4500 is flammable. Keep containers tightly closed after use. Keep away from heat, sparks, and open flames. Storage Hysol adhesives should be stored in a cool, dry place when not used for a long period of time. The shelf life for H4500 is one year from date of manufacture when stored at 40°F and six months when stored at room temperature or 77°F. Exposure above room temperature will reduce shelf life. Packaging 100 gm Clip Pack 490ml EPS cartridges 5 Gallon Pails 55 Gallon Drums |
DISCLAIMER: The information supplied in this document is for guidance only and should not be construed as a warranty. All implied warranties are expressly disclaimed. Including without limitation any warranty of merchantability and fitness for use: All users of the materials are responsible for assuring that it is suitable for their needs, environment and use. All data is subject to change as Dexter deems appropriate. Users should review the Material Safety Data Sheet (MSDS) and product label for the material to determine possible health hazards, appropriate engineering controls and precautions to be observed in using the material. Copies of the MSDS and label are available upon request. |