TechnicalData Sheet LOCTITE 370 July -2005 PRODUCT DESCRIPTION 8 LOCTITE 370 provides the followingproduct characteristics: 6 Technology Acrylic ChemicalType Polyurethane acrylate Appearance(uncured) Transparent light yellow to dark 4 LMS amber coloredliquid Components One component - requires nomixing 2 Viscosity Medium Cure Ultraviolet(UV) light Cure Benefit Production-highspeed curing 0 Application Encapsulating or Tacking 0 5 10 15 20 Cure Time, seconds LOCTITE 370 is designed for tackingor encapsulating wires or terminals, protecting them from atomospheric TYPICAL PROPERTIES OF CURED MATERIAL conditions. Physical Properties -1 -6 CoefficientofThermal Expansion,ASTM D 696,K 10010 TYPICAL PROPERTIES OF UNCURED MATERIAL CoefficientofThermal Conductivity ASTM C 177, 0.1 SpecificGravity 25 C 1.1 W/(mK) Flash Point-SeeMSDS LMS Shore Hardness, ISO 868,Durometer D 45 to80 Viscosity, Brookfield -RVT , 25 C, mPas (cP) : LMS Spindle3,speed 10 rpm 5,500 to8,500 Electrical Properties DielectricBreakdown Strength, IEC60243-1,kV/mm 20 12 Volume Resistivity, IEC60093,cm 510 TYPICAL CURING PERFORMANCE DielectricConstant /DissipationFactor,IEC60250 : LOCTITE 370 is cured when exposed to UV radiationat 1-kHz 5 /0.04 365nm. To obtain a full cure on surfaces exposed to air, radiationat 250nm is also required. The speed ofcure will TYPICAL PERFORMANCE OF CURED MATERIAL depend on the UV intensity as measured at the product Adhesive Properties surface. Typicalcure conditionis 5-10 seconds at 100mW/cm Cured 100 mW/cm 365 nm for 20 seconds using a medium pressure, quartz envelope,mercury vapor TensileStrength, ISO 6922: lamp. Steelpin toGlass N/mm 3 to7 (psi) (435 to1,015) Tack Free Time Tack Free Time is the time required to achieve a tack free TYPICAL ENVIRONMENTAL RESISTANCE surface. Cured 100 mW/cm 365 nm for 20 seconds plus 1 Tack FreeTime, seconds : LMS week 22 C 20 mW/cm 365 nm 10 TensileStrength, ISO 6922: 100 mW/cm 365 nm 2 Steelpin (grit blasted) toGlass Fixture Time Hot Strength Fixture time is definedas the time todevelopa shear strength Tested at temperature of0.1N/mm. 100 UV Fixture Time, ISO 4587,Glass microscopeslides,seconds : 10 mW/cm 365 nm 3 75 100 mW/cm 365 nm 1 50 Depth of Cure The graph below shows the increase indepth ofcure with time at 100mW/cm as measured from the thickness ofthe cured 25 pelletformed ina 15mm diameter PTFE die. 0 0 50 100 150 Temperature, C 100 mW/cm Depth of Cure, mm % Strength 22 C120 C TDS LOCTITE 370 , July -2005 LMS Heat Aging Loctite Material Specification Aged at temperature indicatedand tested 22 C LMS dated September -1, 1995. Test reports foreach batch are availablefor the indicatedproperties. LMS test reports 200 includeselected QC test parameters consideredappropriateto specificationsforcustomer use. Additionally,comprehensive 150 controls are in place to assure product quality and consistency. Specialcustomer specificationrequirements may be coordinatedthrough Henkel Quality. 100 80 C Storage Store product inthe unopenedcontainerina dry location. Storage informationmay be indicatedonthe product container 50 labeling. Optimal Storage: 8 C to 21 C. Storage below 8 C or 0 greater than 28C can adversely affect product properties . 0 100 500 1000 Materialremoved from containers may be contaminated during Hours use. Donot return product to the originalcontainer. Henkel Corporationcannot assume responsibility for product which Chemical/Solvent Resistance has been contaminated or stored under conditionsother than Aged under conditionsindicatedand tested 22 C. those previously indicated.Ifadditionalinformationis required, % of initial strength please contact your localTechnical Service Center or Environment C 100h 500h 1000h Customer Service Representative. Gasoline 22 70 40 40 Conversions 1,1,1Trichloroethane 22 100 100 100 (C x 1.8)+ 32 = F FreonTA 22 80 90 90 kV/mm x 25.4 = V/mil mm /25.4 = inches Industrial methylated 22 40 0 0 spirits m /25.4 = mil Nx 0.225 = lb Heat/humidity 90% RH 40 0 0 0 N/mm x 5.71= lb/in N/mm x 145 = psi GENERAL INFORMATION MPa x 145 = psi This product is not recommended for use in pure oxygen Nm x 8.851 = lbin and/or oxygen rich systems and should not be selected as Nm x 0.738= lbft a sealant for chlorine or other strong oxidizing materials. Nmm x 0.142 = ozin For safe handling information on this product, consult the mPas = cP Material Safety Data Sheet (MSDS). Note The data containedhereinare furnished forinformationonly Directions for use and are believed to be reliable. We cannot assume 1. This product is light sensitive exposure to daylight, UV responsibility for the results obtainedby others over whose lightand artificiallightingshould be kept to a minimum methods we have nocontrol. It is the user s responsibilityto during storage and handling. determine suitability forthe user s purpose ofany production 2. The product should be dispensed from applicatorswith methods mentionedhereinand to adopt such precautions as blackfeedlines. may be advisable forthe protectionofproperty and ofpersons 3. Forbest performance bond surfaces should be cleanand against any hazards that may be involvedinthe handlingand freefrom grease . use thereof.Inlightofthe foregoing,Henkel Corporation specifically disclaims all warranties expressed or implied, 4. Cure rate is dependentonlamp intensity, distance from including warranties of merchantability or fitness for a lightsource, depth ofcure neededor bondlinegap and particular purpose, arising from sale or use of Henkel lighttransmittance ofthe substrate through which the Corporations products. Henkel Corporation specifically radiationmust pass . disclaims any liability for consequential or incidental 5. Recommended intensity for cure in bondlinesituation is 5 damages of any kind, including lost profits. The discussion mW/cm minimum (measured at the bondline)with an herein ofvarious processes or compositionsis not to be exposure time of 4-5times the fixture time at the same interpreted as representation that they are free from intensity . dominationofpatents owned by others or as a licenseunder 6. Fordry curing ofexposed surfaces, higher intensity UV is any HenkelCorporationpatents that may cover such required (100 mW/cm) . processes or compositions. We recommend that each 7.Coolingshould be provided for temperature sensitive prospective user test his proposedapplicationbeforerepetitive substrates such as thermoplastics . use, using this data as a guide. This product may be covered 8. Plastic grades should be checked for risk ofstress by oneor more United States or foreignpatents or patent crackingwhen exposed toliquidadhesive . applications. 9. Excess uncured adhesive can be wiped away with organic solvent (e.g.Acetone). 10. Bonds should be allowedtocoolbeforesubjecting toany service loads. HenkelLoctiteAmericas HenkelLoctiteEurope HenkelLoctiteAsia Pacific +860.571.5100 +49.89.9268.0 +81.45.758.1810 For the most direct access to local sales and technical support visit: www.loctite.com % Initial strength, at RT