LORD® 310 Epoxy Adhesive

LORD TECHNICAL DATAMixing – Thoroughly mix the proper amount of resinand hardener until uniform in color and consistency.Be careful not to whip excessive air into the adhesivesystem. Handheld cartridges will automatically dispensethe correct volumetric ratio of each component.Heat buildup due to an exothermic reaction betweenthe two components will shorten the working time of theadhesive. Mixing smaller quantities will minimize heatbuildup. Do not use any adhesive that has begun to cure.Applying – Apply the mixed adhesive to bond surfacesusing automatic meter/mix/dispense equipment, handheldcartridges or any convenient tool such as a stiffbrush, spatula or trowel. For general use, a fi lm thicknessof approximately 0.02 inch (0.51 mm) is recommended.To control bondline thickness, a small amount of solidglass beads can be added into the mixed adhesive.Join the parts in such a way as to avoid entrapped air.Apply only enough pressure to ensure good wettingof the adhesive on both surfaces. Squeezing a littleadhesive out at the edges is usually a sign of properassembly. It is not necessary to clamp the assemblyunless movement during adhesive cure is likely.Maximum adhesion will occur only with parts which matewell without the need for excessive clamping pressureduring cure. Excessive clamping may squeeze too muchadhesive from the bond area which can result in a poorbond.Curing – LORD 310 adhesive will cure to full strengthin 24 hours, provided that the adhesive, substrates andambient temperature are 65°F (18°C) or higher.Higher temperatures will provide faster cure times;however, the bondline temperature should not exceed325°F (162°C). Elevated temperature cure producesthe highest bond strengths and impact resistance.Firm recommendations of cure times and temperaturesdepend on material composition and heating methods.Once the adhesive has cured, it can be fi led, sanded,machined or otherwise handled in the same way as alight metal. Paint, lacquers, enamels and other coatingscan be applied to cured adhesive.Typical Properties* of Resin Mixed with Hardener310/310-B 310/310-B BlackMix Ratio, Resin to HardenerGeneral Purpose, -40 to 400°F (-40 to 204°C)Mixed Stress Joint Designby Volume 1:1 1:1by Weight 1.15:1 1.15:1High Temperature, 50-400°F (10-204°C)Shear Stress Joint Designby Volume 1.5:1 1.5:1by Weight 1.7:1 1.7:1Low Temperature, -40 to 100°F (-40 to 38°C)Peel Stress Joint Designby Volume 1:1.5 1:1.5by Weight 1:1.5 1:1.5Solids Content, % 100 100Working Time, min @ 75°F (24°C) 30-60 30-6054 g massTime to Handling Strength, hr 6-8 6-8Mixed Appearance Gray Paste Black PasteCured Appearance Gray Black*Data is typical and not to be used for specifi cation purposes.