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Polyethersulfone (PES)ThermoplasticTrade Names• Ultrason• Victrex PESManufacturerBASFVictrex, USAGeneral DescriptionPES is an amorphous thermoplastic whose backbone is composed ofalternating aromatic groups linked with alternating oxygen and sulfurdioxide groups. PES is primarily used for high temperature applications.Specialty grades available include glass, carbon, stainless steel, andfluorocarbon filled. In 2004, the price of PES ranged approximately from$3.31 to $4.55 per pound at truckload quantities.General PropertiesThe most notable properties of PES are its transparency, goodmechanical properties, and outstanding thermal stability. Unfilled PEShas a useful life of 4 to 5 years at 390°F (199°C) and approximately20 years at 356°F (180°C). Moreover, the mechanical and electricalproperties of PES show a low sensitivity to temperature change andload. In addition, the mechanical properties of PES at elevatedtemperatures can be significantly increased by annealing. PES has alow smoke emission and can withstand long-term exposure to bothair and water at elevated temperatures. PES is chemically resistant tomost inorganic chemicals, greases, aliphatic hydrocarbons, and bothleaded and unleaded gasoline. However, PES is attacked by esters,ketones, methylene chloride, and polar aromatic solvents. Thechemical resistance of PES is lessened by internal stress, but this canbe alleviated by annealing the polymer. Typical of the polysulfonefamily, PES has a low resistance to weathering and is degraded by UVlight, making unfilled PES inappropriate for outdoor use. The majordisadvantage to adhesively joining PES is that PES is extremelysensitive to stress cracking. However, the addition of glass fillers, theuse of adhesive accelerators and/or annealing PES greatly increasesits resistance to stress cracking.Typical Properties of Polyethersulfone (PES)American EngineeringProcessing Temperature 675°F to 700°F 357°C to 371°CLinear Mold Shrinkage 0.001 to 0.006 in./in. 0.001 to 0.006 cm/cmMelting Point 440°F to 460°F 227°C to 238°CDensity 91.8 to 99.9 lb./ft. 3 1.47 to 1.60 g/cm 3Tensile Strength, Yield 13.0 to 21.0 lb./in. 2 x 10 3 9.1 to 14.8 kg/cm 2 x 10 2Tensile Strength, Break 11.9 to 23.6 lb./in. 2 x 10 3 8.4 to 16.6 kg/cm 2 x 10 2Elongation, Break 2.0 to 4.3% 2.0 to 4.3%Tensile Modulus 5.9 to 13.5 lb./in. 2 x 10 5 4.1 to 9.5 kg/cm 2 x 10 4Flexural Strength, Yield 17.9 to 29.5 lb./in. 2 x 10 3 12.6 to 20.7 kg/cm 2 x 10 2Flexural Modulus 3.4 to 13.0 lb./in. 2 x 10 5 2.4 to 9.1 kg/cm 2 x 10 4Compressive Strength 15.9 to 21.3 lb./in. 2 x 10 3 11.2 to 15.0 kg/cm 2 x 10 2Izod Notched, R.T. 1.0 to 1.6 ft.-lb./in. 5.3 to 8.6 kg cm/cmHardness R120 - R123 Rockwell R120 - R123 RockwellThermal Conductivity 1.3 to 2.9 BTU-in./hr.-ft. 2 -°F 0.19 to 0.42 W/m-°KLinear ThermalExpansionDeflection Temperature@ 264 psiDeflection Temperature@ 66 psiContinuousService Temperature1.2 to 3.3 in./in.-°F x 10 -5 2.2 to 5.9 cm/cm-°C x10 -5400°F to 460°F 204°C to 238°C420°F to 460°F 216°C to 238°C350°F to 390°F 177°C to 199°CDielectric Strength 370 to 600 V/10 -3 in. 1.5 to 2.4 V/mm x 10 4Dielectric Constant@ 1 MHzDissipation Factor@ 1 MHzWater Absorption,24 hr.SI3.5 to 4.2 3.5 to 4.20.006 to 0.010 0.006 to 0.0100.29 to 0.41% 0.29 to 0.41%Typical Applications• Electrical – Multipin connectors, coil formers,printed circuit boards• Miscellaneous – Radomes, pump housings, bearing cages,hot combs, medical trays48The Loctite ® Design Guide for Bonding Plastics, Volume 4
ADHESIVE SHEAR STRENGTH(psi)(MPa)PolyethersulfoneUNFILLED RESIN5 rmsROUGHENED24 rmsLUBRICANT9% Polymist F510INTERNAL MOLDRELEASE0.5% Mold Wiz 55PVFILLER17% 497 FiberglassCOLORANT0.5% Yellow 55-21007POLYSULFONEUdedl courtesy of AmocoPerformance ProductsLoctite ® 380 Black Max ® Instant Adhesive,Rubber Toughened6504.5185012.89506.66504.5175012.16504.56504.5Udel P-1700 produced by Solvay Advanced Polymers 11 rms Ultrason E2010 by BASFLoctite ® 401 Prism ® Instant Adhesive,Surface InsensitiveMEDICAL: Loctite ® 4011 Prism ®Instant Adhesive, Surface InsensitiveLoctite ® 401 Prism ®Loctite ® 770 Prism ® PrimerMEDICAL: Loctite ® 4011 Prism ® /Loctite ® 7701 Prism ® PrimerLoctite ® 414 Super Bonder ®Instant Adhesive, General PurposeLoctite ® 330 Depend ® Adhesive,Two-Part No-Mix AcrylicLoctite ® 3105 Light Cure Adhesive,MEDICAL: Loctite ® 3311 Light Cure AdhesiveLoctite ® 3340 Light Cure Adhesive,UV Cationic EpoxyLoctite ® 4305 Flashcure ® Light Cure AdhesiveFLUORESCENT: Loctite ® 4307 Flashcure ®Light Cure AdhesiveLoctite ® H3000 Speedbonder Structural Adhesive, General PurposeLoctite ® H4500 Speedbonder Structural Adhesive, Metal BonderLoctite ® 3030 Adhesive, Polyolefin BonderLoctite ® E-00CL Hysol ® Epoxy Adhesive,Low OdorLoctite ® E-90FL Hysol ® Epoxy Adhesive,FlexibleLoctite ® E-30CL Hysol ® Epoxy Adhesive,Glass BonderMEDICAL: Loctite ® M-31CL Hysol ®Epoxy Adhesive, Glass BonderLoctite ® E-20HP Hysol ® Epoxy Adhesive,Fast SettingMEDICAL: Loctite ® M-21HP Hysol ®Epoxy Adhesive, Fast SettingLoctite ® E-214HP Hysol ® Epoxy Adhesive,High StrengthLoctite ® Fixmaster ® High Performance EpoxyLoctite ® 1942 Hysol ® Hot Melt Adhesive,EVA BasedLoctite ® 3651 Hysol ® Hot Melt Adhesive,PolyolefinLoctite ® 7804 Hysol ® Hot Melt Adhesive160011.01501.09506.62501.7305021.02001.4>2600 >17.9 10006.96004.1200013.84503.16004.16504.56504.5170011.710006.92001.41000.71000.7160011.011007.612508.62501.7305021.08505.96004.17004.88005.5235016.25003.51501.09506.62501.7380026.2160011.0185012.8190013.111507.9305021.08505.94503.1295020.35503.8305021.0160011.01501.07004.89006.2305021.0Adhesive PerformanceLoctite ® 3105 Light Cure Adhesive consistently achieved the highest bond strengths on PES, while Loctite ®4305 Flashcure ® Light Cure Adhesive achieved substrate failure at a lower bond strength. Loctite ® 401 Prism ® and 414 Super Bonder ® Instant Adhesives, Loctite ® 3030 Adhesive, Loctite ® E-214HP Hysol ®Epoxy Adhesive, Loctite ® 3631 Hysol ® Hot Melt Adhesive, and Loctite ® Fixmaster ® High Performance Epoxyall developed significant bond strength on unfilled PES. The only statistically significant difference betweenthe bondability of unfilled PES and polysulfone was that Loctite ® 330 Depend ® Adhesive achieved higher,statistically significant bond strengths on the polysulfone than on the unfilled PES.Surface TreatmentsSurface roughening caused either no effect or a statistically significant increase in the bond strengthsachieved on PES. The use of Loctite ® 770 Prism ® Primer, in conjunction with Loctite ® 401 Prism ® InstantAdhesive, or Loctite ® 4011 Prism ® Medical Device Instant Adhesive with Loctite ® 7701 Prism ® Primer,caused a statistically significant decrease in the bondability of both PES and polysulfone.Other Important Information• PES and polysulfone are extremely sensitive to stress cracking caused by exposure to uncuredcyanoacrylate adhesives, so any excess adhesive should be removed from the surfaceimmediately, and cyanoacrylate accelerators should be used whenever possible.• PES and polysulfone are compatible with acrylic adhesives, but can be attacked by theiractivators before the adhesive has cured. Any excess activator should be removed from thesurface immediately.• PES and polysulfone are incompatible with anaerobic adhesives.• Surface cleaners: isopropyl alcohol, Loctite ® ODC-Free Cleaner & Degreaser.Loctite ® 3631 Hysol ® Hot Melt Adhesive,UrethaneLoctite ® U-05FL Hysol ® Urethane Adhesive,High StrengthLoctite ® Fixmaster ® Rapid Rubber RepairOEM: Loctite ® U-04FL Hysol ®Urethane Adhesive, Fast SettingLoctite ® 5900 ® Flange Sealant,Heavy Body RTV Silicone14009.76004.12501.71501.0NOTES: The force applied to the tests specimens exceededthe strength of the material resulting in substrate failurebefore the actual bond strength achieved by theadhesive could be determined.The addition of the indicated additive (or surfaceroughening) caused a statistically significant decrease inthe bond strength within 95% confidence limits.The addition of the indicated additive (or surfaceroughening) caused a statistically significant increase inthe bond strength within 95% confidence limits.The Loctite ® Design Guide for Bonding Plastics, Volume 4 49
Page 5 and 6: How To Use The Plastic Bonding Guid
Page 8: Cyanoacrylate AdhesivesGeneral Desc
Page 11 and 12: Light Curing Acrylic AdhesivesGener
Page 13 and 14: Silicone AdhesivesGeneral Descripti
Page 15 and 16: Why Bond Plastics With Loctite ® B
Page 17 and 18: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ac
Page 25 and 26: ADHESIVE SHEAR STRENGTH(psi)(MPa)Di
Page 27 and 28: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ce
Page 29 and 30: ADHESIVE SHEAR STRENGTH(psi)(MPa)Ep
Page 31 and 32: ADHESIVE SHEAR STRENGTH(psi)(MPa)Po
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Page 35 and 36: ADHESIVE SHEAR STRENGTH(psi)(MPa)Li
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Page 53 and 54: ADHESIVE SHEAR STRENGTH(psi)(MPa)Lo
Page 73 and 74: ADHESIVE SHEAR STRENGTH(psi)(MPa)St
Page 75 and 76: ADHESIVE SHEAR STRENGTH(psi)(MPa)Vi
Page 77 and 78: Surface TreatmentsAdhesive Abrading
Page 79 and 80: Adhesive Joint DesignIntroductionIn
Page 81 and 82: TitleDesign GuidelinesEngineers mus
Page 83 and 84: Shortening bond overlaps reduces bo
Page 85 and 86: Softening and weakening of the surf
Page 87 and 88: Determining The Test MethodThe lap
Page 89 and 90: Block Shear Test Method1. Assemblie
Page 91 and 92: ViscosityViscosity is a product pro
Page 93 and 94: Index of Trade NamesTrade Name Plas
Page 95 and 96: Trade Name Plastic Type Manufacture
Page 97 and 98: AcknowledgmentsThis manual would no
Page 99: For more information, please call 1

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