Accessories HERNON DISSIPATOR 746 SEPA ACCESSORIES HERNON AKTIVATOR EF37173 THERMAL CONDUCTIVE ADHESIVE HERNON DISSIPATOR 476 HERNON AKTIVATOR EF37173 THERMAL CONDUCTIVE ADHESIVE DESCRIPTION APPLICATIONS HERNON 746 is an excellent thermally con- HERNON 746 bonds heat sinks to compo- ductive two-component adhesive with ex- nents and parts. It also allows parts and tremely fast curing. It offers effective thermal components to be bonded reliably not only to bonding of electronic components to heat vertical cooling surfaces but also to metallic sinks. The material has an outstanding bond- housing surfaces and side panels without ing property so that mechanical devices are having to use clips, screws or other me- no longer required. chanical forms of fixture. Typical applications include the bonding of transformers, transis- The adhesive comprises a paste-like adhe- tors, microprocessors and other heat- sive and a fluid activator. The components generating components to PCBs or coolers. are not mixed. Apply a small amount of the HERNON 746 is particularly suitable for adhesive to the surface to be bonded and the bonding LED chips to heat sinks. activator to the other bonding surface. Press together to bond. Necessary corrections can HERNON 746 has numerous advantages be made within 15-30 seconds. The bond is compared to traditional adhesive bonds, e.g. secure after 5 minutes at room temperature thermal hot melt adhesive or epoxy adhe- and is fully cured within 24 hours. sive. It ensures permanent use and reliably complies with the thermal and technical Extensive tests are evidence of the excellent properties. The adhesive is easy to apply thermal and mechanical properties of and thus considerably reduces both produc- HERNON 746. tion costs and service repair times. HERNON 746 fulfils the extremely strict re- Surfaces to which HERNON 746 adhesive quirements with regard to thermal, mechani- and activator have been applied can be sub- cal, chemical and environmental pollution. jected to virtually unlimited pause times with- out the properties of the bonding surface de- Vibration tests of 10g show no negative ef- teriorating. fects. After performing extensive tempera- ture, humidity and ageing tests, HERNON HERNON 746 offers substantial cost advan- 746 not only fulfils but actually exceeds by tages compared to mechanical fixtures or far the basic properties with regard to tensile liquid adhesives which frequently necessitate strength and thermal conductivity. extensive investments in the production pro- cess and equipment. SEPA EUROPE GmbH D-79108 FREIBURG Tel: +49(0)761/3842273-0 Fax: +49(0)761/3842273-99 11.12 Technical changes without notice Technical changes without notice 11/12 SEPA EUROPE GmbH D-79108 Freiburg Tel.: +49/761/3842273-0 Fax: +49/761/3842273-99Accessories TYPICAL PROPERTIES APPLICATION HINTS The following values have been achieved by We recommend using: tests carried out by the manufacturer. A con- sistency of quality is guaranteed by continu- Lint-free cotton cloth ous quality monitoring. Cleaning agents e.g. Toluene, Isopropyl al- cohol Extensive testing is required for specific ap- plications. Please observe the safety regulations when using solvents. Wear gloves when working Property Test Me- for long periods thod Colour White In order to ensure an optimum adhesive Max. adhesive gap 0.25 - bond, the surfaces of the parts to be bonded must be dry and free from dust and grease. mm In particular, traces of thermal conduction Shear strength 5.5 ISO 4587 2 paste or residue from mould releasing agents N/mm on plastic housings prevent reliable bonding. Tensile strength 15.2 ISO 527 2 N/mm Apply HERNON 746 adhesive sparsely to Thermal expansion 110 ASTMD-412 one of the bond surfaces. Apply a thin film of coefficient ppm/K HERNON EF37173 activator to the other sur- Thermal conductivity >0.76 ASTM C face to be bonded. W / m*K 177 Dielectric strength - Slightly turn the parts to be bonded and join kV/mm by pressing down firmly for several seconds. Flammability V-O UL 94 The ideal processing temperature is 20 Processing tempera- 2028 28C, the position of the parts can be cor- ture C rected within 15-30 seconds. Operating temperatu- -55 ... re C +150 Wait 5 minutes for the adhesive bond to Shelf life at 22C min. 3 reach approx. 70% of its final strength and years 24 hours to reach 100% final strength. Ex- Storage temperature 828 cess adhesive that accumulates at the edges C can be easily removed. Standard Packing 10/50/ 100/50 Note: Never apply pressure to the rotor of a 0/1000 fan Only apply pressure to the fan frame ORDER INFORMATION HERNON 746-04 Adhesive, tube with 4ml 950000001 HERNON 746-10 Adhesive, tube with 10ml 950000002 HERNON 746-25 Adhesive, tube with 25ml 950000003 HERNON EF37173-10 Activator, vial with closure with brush, 10ml 950000004 HERNON EF37173-52 Activator, vial with closure with brush, 52ml 950000005 HERNON 746 SET-04 Thermally conductive two component adhesive, 950000007 HERNON 746-04 and HERNON EF37173-10 HERNON 746 SET-25 Thermally conductive two component adhesive, containing 950000009 HERNON 746-25 and HERNON EF37173-10 SEPA EUROPE GmbH D-79108 FREIBURG Tel: +49(0)761/3842273-0 Fax: +49(0)761/3942273-99 11/12 Technical changes without notice SEPA EUROPE GmbH D-79108 Freiburg Tel.: +49/761/3842273-0 Fax: +49/761/3842273-99