Gap Filler 3500S35 (Two-Part) Thermally Conductive Liquid Gap Filling Material Features and Benefits TYPICAL PROPERTIES OF GAP FILLER 3500S35 PROPERTY Color / Part A * Thermal Conductivity: 3.6 W/m-K * Thixotropic nature makes it easy to dispense * Two-part formulation for easy storage * Ultra-conforming - designed for fragile and low stress applications * Ambient or accelerated cure schedules IMPERIAL VALUE White Color / Part B TEST METHOD Visual Blue Blue Visual 150,000 150,000 ASTM D2196 Density (g/cc) 3.0 3.0 ASTM D792 Mix Ratio 1:1 1:1 -- 5 5 -- PROPERTY AS CURED Color Blue Blue Visual Hardness (Shore 00) (2) 35 35 ASTM D2240 Viscosity as Mixed (cps) (1) Shelf Life @ 25C (months) Continuous Use Temp (F) / (C) Gap Filler 3500S35 is the technology leader in thermally conductive, liquid gap filling materials, featuring ultra-high thermal performance and superior softness.The material is twocomponent, cured either at room or elevated temperature. Prior to curing, the material maintains good thixotropic characteristics as well as low viscosity.The result is a gel-like liquid material designed to fill air gaps and voids yet flow when acted upon by an external force (e.g. dispensing or assembly process).The material is an excellent solution for interfacing fragile components with high topography and/or stack-up tolerances to a universal heat sink or housing. Once cured, it remains a low modulus elastomer designed to assist in relieving CTE stresses during thermal cycling yet maintain enough modulus to prevent pump-out from the interface. Gap Filler 3500S35 will lightly adhere to surfaces, thus improving surface area contact. Gap Filler 3500S35 is not designed to be a structural adhesive. METRIC VALUE White -76 to 392 -60 to 200 -- ELECTRICAL AS CURED Dielectric Strength (V/mil) 275 275 ASTM D149 Dielectric Constant (1000 Hz) 8.0 8.0 ASTM D150 Volume Resistivity (Ohm-meter) 109 109 ASTM D257 Flame Rating V-O V-O U.L. 94 THERMAL AS CURED Thermal Conductivity (W/m-K) 3.6 3.6 ASTM D5470 CURE SCHEDULE Pot Life @ 25C (min) (3) 60 60 -- Cure @ 25C (hrs) (4) 15 15 -- Cure @ 100C (min) (4) 30 30 -- 1) Brookfield RV, Heli-Path, Spindle TF @ 20 rpm, 25C. 2) Thirty second delay value Shore 00 hardness scale. 3) Time for viscosity to double. 4) Cure schedule (rheometer - time to read 90% cure) Typical Applications Include: * Automotive electronics * Discrete components to housing * PCBA to housing * Fiber optic telecommunications equipment Configurations Available: * Supplied in cartridge or kit form Building a Part Number Standard Options 6G = 6 gallon Thickness vs.Thermal Resistance Gap Filler 3500S35 Thickness (inch) 0.25 0.20 0.15 0.10 0.05 0.00 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Thermal Resistance (C-in2/W) Gap Pad (R): U.S. Patent 5,679,457 and others www.bergquistcompany.com The Bergquist Company North American Headquarters 18930 West 78th Street Chanhassen, MN 55317 Phone: 800-347-4572 Fax: 952-835-0430 The Bergquist Company European Headquarters Bramenberg 9a, 3755 BT Eemnes Netherlands Phone: 31-35-5380684 Fax: 31-35-5380295 The Bergquist Company - Asia Room 15, 8/F Wah Wai Industrial Centre No. 38-40, Au Pui Wan Street Fotan, Shatin, N.T. Hong Kong Ph: 852.2690.9296 Fax: 852.2690.2344 All statements, technical information and recommendations herein are based on tests we believe to be reliable, and THE FOLLOWING IS MADE IN LIEU OF ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MARKETABILITY AND FITNESS FOR PURPOSE. Sellers' and manufacturers' only obligation shall be to replace such quantity of the product proved to be defective. Before using, user shall determine the suitability of the product for its intended use, and the user assumes all risks and liability whatsoever in connection therewith. NEITHER SELLER NOR MANUFACTURER SHALL BE LIABLE EITHER IN TORT OR IN CONTRACT FOR ANY LOSS OR DAMAGE, DIRECT, INCIDENTAL, OR CONSEQUENTIAL, INCLUDING LOSS OF PROFITS OR REVENUE ARISING OUT OF THE USE OR THE INABILITY TO USE A PRODUCT. No statement, purchase order or recommendations by seller or purchaser not contained herein shall have any force or effect unless in an agreement signed by the officers of the seller and manufacturer. PDS_GF_3500S35_12.08 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Bergquist Company: GF3500S35-00-60-50cc