ELASTOSIL RT 602 RTV-2 Silicone Encapsulant Characteristics Special characteristics ELASTOSIL RT 602 is a pourable, addition-curing Two-part, 9 : 1 mixing ratio RTV-2 silicone rubber. Low viscosity Rapid heat cure Medium hardness Excellent heat stability Product data (uncured) Property Test method Unit Value Component A B Color Light gray Transparent Viscosity at 23 C ISO 3219 mPa s 5,000 200 Density DIN 52 479 A g/cm 1.17 0.96 These figures are only intended as a guide and should not be used in preparing specifications. Product data (catalyzed A+B) Property Test method Unit Value Platinum-catalyst in component A Mixing ratio (by weight) A : B 9 : 1 Viscosity of mix ISO 3219 mPa s 3,500 Pot life at 23 C (up to 100,000 mPa s) min 80 These figures are only intended as a guide and should not be used in preparing specifications. Product data (cured) Property Test method Unit Value Color Light gray Density at 23C ISO 2781 g/cm 1.17 Hardness Shore A ISO 868 30 Tensile strength ISO 37 N/mm 1.5 Elongation at break ISO 37 % 130 Dielectric strength IEC 243 kV/mm 23 16 Volume resistivity IEC 93 cm 10 Dielectric constant VDE 0303 T4 / 50 Hz 3.1 r -4 Dissipation factor VDE 0303 T4 / 50 Hz tan 450 x 10 Tracking resistance IEC 112 CTI > 600 Cured for 30 min at 150 C in a circulating air oven. These figures are only intended as a guide and should not be used in preparing specifications. Version 3.00 / 09-02-04 / Dr.Br ELASTOSIL RT 602 Page 1 / 2 Application Temperature Curing time, thickness 1 cm 23 C 24 h General purpose Encapsulant 70 C 20 min Processing 100 C 10 min 150 C 5 min Caution Only components A and B with the same lot number We recommend running preliminary tests to optimize may be processed together conditions for the particular application. Comprehen- To ensure homogeneity of the material, the components sive processing instructions are given in our leaflet Wacker RTV-2 Silicone Rubber - Processin. must be stirred thoroughly before they are removed or processed in their containers, in order to uniformly dis- perse any filler that might have settled during storage. Storage Surface preparation All surfaces must be clean and free of contaminants ELASTOSIL RT 602 has a shelf life of at least 12 that will inhibit the cure of ELASTOSIL RT 602. months when stored in tightly closed original contain- Examples of inhibiting contaminants are sulfur contain- ers at 25 C. The Best use before end date of each ing materials, plasticizers, urethanes, amine containing batch appears on the product label. materials and organometallic compounds especially organotin compounds. Storage beyond the date specified on the label does If a substrates ability to inhibit cure is unknown, a not necessarily mean that the product is no longer small scale test should be run to determine compatibil- usable. In this case however, the properties required ity. for the intended use must be checked for quality as- surance reasons. Mixing Component A of ELASTOSIL RT 602 contains the platinum catalyst, component B the crosslinker. Even Safety information traces of the platinum catalyst may cause gelling of the component containing the crosslinker. Therefore tools According to the latest findings addition-curing silicone (spatula, stirrers, etc.) used for handling the platinum- rubber ELASTOSIL RT 602 contains neither toxic nor containing component or the catalyzed compound aggressive substances which would require special must not come into contact with this component. handling precautions. General industrial hygiene regu- The two components should be thoroughly mixed at a lations should be observed. 9 : 1 ratio by weight. To eliminate any air introduced during dispensing or Detailed safety information is contained in each Mate- trapped under components or devices a vacuum en- rial Safety Data Sheet, which can be obtained from our capsulation is recommended. sales offices. Curing Curing time of addition-curing silicone rubber is highly dependent on temperature, size and heat sink proper- ties of the component being potted. The data presented in this leaflet are in accordance with the present state of our The management system has been For technical, quality, or product knowledge, but do not absolve the user from carefully checking all supplies immedi- certified according safety questions, please contact: ately on receipt. We reserve the right to alter product constants within the scope of to DIN EN ISO 9001 technical progress or new developments. The recommendations made in this leaflet and DIN EN ISO 14001 Wacker-Chemie GmbH should be checked by preliminary trials because of conditions during processing The Business Unit Elastomers of the WACKER-SILICONES over which we have no control, especially where other companies raw materials are Division Silicones is ISO/TS 16949 Hanns-Seidel-Platz 4 also being used. The recommendations do not absolve the user from the obligation certified. D-81737 Munich, Germany of investigating the possibility of infringement of third parties rights and, if neces- sary, clarifying the position. Recommendations for use do not constitute a warranty, Silicone-Info Service either express or implied, of the fitness or suitability of the products for a particular Germany: purpose. Tel.: 0-800-6279-800 and ELASTOSIL is a registered International: trademarks of Wacker-Chemie Phone: +800-6279-8000 GmbH. www.wacker.com Version 3.00 from 09-02-04 replaces silicones wacker.com Version 2.00 from 11-08-03 Version 3.00 / 09-02-04 / Dr.Br ELASTOSIL RT 602 Page 2 / 2