OPTOCAST3410

3410VM ETC | Alldatasheet

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Technical content

“An ISO 9001 registered company” Technical Data Sheet OPTOCAST 3410VM U.V and/or Visible light and/or Heat Curable One Component Epoxy Revision Date: 12/2004 OPTOCAST 3410VM is an ultra violet or visible ight and/or heat curable epoxy suitable for opto- electronic assembly. It cures rapidly when exposed to U.V. or visible light in the 320-550nM range to a tough resistant material with excellent adhesion. It is highly purified, with a maximum ionic content of 10 P.P.M. total Na + K+, Cl-. Featuring ULTRA low shrinkage upon cure, OPTOCAST 3410VM is ideal for fixturing and aligning optical devices, while its extremely low coefficient of thermal expansion give it excellent thermal cycle performance. Properties Uncured Color Amber/Brown Viscosity Brookfield RVT Cps. 100,000 Filler type Silica Filler % 80 Shelf Life (when stored at 0°C or less) 6 months Density 1.85 Properties Cured Color Amber/Brown C.T.E.-ppm/°C ∝1- 14 Tg- °C >150 Linear shrinkage % 0.25 Flexural strength psi 9,000 Tensile strength psi 18,000 Thermal conductivity W/mK 0.70 Hardness D. 92 minimum Ionics ppm total Na+,Cl-,K+. 10 maximum Vol. Resistivity ohms•cm 10 Dielectic St. Volts/mil 1/8” 450 Use and Handling

• No measuring or mixing. OPTOCAST 3410VM is a single component system.
• Remove from freezer and allow to come to room temperature (20-30 mins).
• Working life at room temperature is approximately Three Days.‘
• Expose to U.V. light of wavelength range 325 - 550nm. Exposure time is a function of the light intensity, amount (mass) of epoxy and the type of substrate. See TSR #16 for more detailed cure information.
• Post cure @ 110-130°C for 10 to 30 minutes. { Cure shrinkage can be controlled by the end user. The actual chemical cure shrinkage of OPTOCAST 3410VM is much less than 0.3%. However, by applying too much energy (U.V. and/or thermal) initially, the cure reaction can proceed very rapidly, generating a very high cure exotherm. This rapidly raises the temperature of the of the epoxy - particularly in the thickest (dome) area of the glob, causing local thermal expansion, then rapid gelation- before the thinner (outer) sections have started to gel. When cooled back to ambient temperature, this results in a stress force in the direction of lifting or curling the perimeter of the glob. Don’t be time greedy, patience will result in superior adhesion. |While the working life is 3 days, OPTOCAST 3410VM contains a high level of Silica and at room temperature Silica tends to settle, causing separation from the epoxy polymers. The user must assure themselves that any settling that might occur, does not cause inconsistent results. ‘Assume the material is stored – the refrigerator over night.

Shipping and Unpacking Procedure This material is packed and shipped in dry ice at -75°C to protect it and maintain a frozen state during shipment. The engineered system of an insulated container, packing material, and dry ice has been designed to protect the material for up to 6 days in transit (international) and up to 48 hours in transit (domestic). ♦ It is critical that the shipping container is not opened in transit and is expedited to its final destination. ♦ DO NOT ALLOW THE SHIPMENT TO BE LEFT ON LOADING DOCKS, IN CUSTOMS WAREHOUSES, OR ON FREIGHT TRUCKS FOR EXTENDED TIME PERIODS. ♦ Maintaining temperature at -5 °C or less upon receipt is critical to maintain the functionality and performance of the material. ♦ Failure to maintain these temperatures will void any warranties and will adversely affect the materials performance. ♦ Upon receipt, the syringes should be transferre d from the shipping container to a freezer at -5°C or less. ♦ Care must be taken during this step as a sudden increase in temperature can cause irreversible air voids due to the thermal expansion of the syringe barrels. Storage and Thawing Prior to application, the materi al must be allowed to thaw naturally to room temperature (ideally 20-25 °C) by placing the syringes in a vertical position with dispense tip facing downward. This is a critical step for obtaining optimum dispensing performance. ♦ Under no circumstance should artificial he at sources be used to increase thaw speed. ♦ Do not place the syringes in, or near, a ny heat source including ovens, hot plates, hot air guns, etc. to speed thawing. ♦ Thaw time varies by package style, size, a nd ambient temperature, but is typically 30 to 120 minutes. ♦ Do not attempt to dispense the material before it reaches ambient temperature. ♦ Wipe all excess moisture or condensation from the syringes prior to use. ♦ A small amount of air in the tip area is nor mal. Carefully remove the tip cap and manually extrude a small amount of material. This will displace any air that may be in the tip area. ♦ A small amount of air may accumulate at the rear of the syringe near the piston. This is also normal and this air can eas ily be removed by manually placing a light amount of pressure on the piston near the location of the visible air with the tip cap in place. This will force the air to by-pass the piston and exit the rear of the syringe. Mount the syringe onto the dispense e quipment and purge material through the system until an unbroken flow of material is extruded. ♦ Do not thaw and refreeze syringe more than 5 times. Good housekeeping rules are always important. Provide ample ventilation in all areas of handling, mixing and use. Avoid prolonged breathing of possible fumes. Minimize skin contact. Use of goggles, rubber gloves, and protective creams is recommended. Always wash exposed areas immediately using warm water and soap followed by rinsing with clear water. If material comes in contact with eyes, flush with clear water for fifteen minutes and consult a physician immediately. All data in the bulletin are based on our own research and the research of others. They are believed to be accurate. However, no guarantee of accuracy is made. Product description is sold without warranty except conformity to specification and on condition that the purchasers shall determine suitability for their particular purpose. Rev.005 End of Document 1814 Airport Road, Breckenridge, CO 80424 info@electronicmaterialsinc.com Phone: (970) 547-0807 Fax: (970) 547-0817 www.electronicmaterialsinc.com