On 18 May 2014 03:19, Josh Koffman wrote: > Roughly 10 years ago, we used a product from Loctite (no idea what the > number is) that was a "self leveling" thermally conductive adhesive. > What this mean is that there were tiny glass spheres in the mixture > that served to maintain a specific distance between the back of the > LED and the heatsink. > "Loctite 315 Output" "Self shimmin" - provides electrical isolation and thermal traaansfer. http://www.loctite.sg/931_SEA_HTML.htm?countryCode=3Dsea&BU=3Dindustrial&pa= rentredDotUID=3Dproductfinder&redDotUID=3D10000009K1P *Semi-random selection of other products:* Dow Corning make several thermally conductive adhesives (no surprise). 3-6751 1 part http://www.dowcorning.com/applications/search/products/details.aspx?prod=3D= 04023837&type=3DPROD 1-4174 1 part - spacer beads http://www.dowcorning.com/applications/search/products/Details.aspx?prod=3D= 02708329&type=3DPROD 3-6752 2 part http://www.ostec-materials.ru/upload/iblock/256/256b5661db6f5c27cd3ccb64813= e11f8.pdf http://www.dowcorning.com/applications/search/products/details.aspx?prod=3D= 04020622&type=3DPROD MSDS http://www3.dowcorning.com/DataFiles/090007b281b6c6df.pdf 3-6753 2 part - beads http://www.dowcorning.com/applications/search/products/Details.aspx?prod=3D= 04031931&type=3DPROD _____________ *Silicone solutions * SS35 1 part Overview http://siliconesolutions.com/ss-35.html Datasheet http://siliconesolutions.com/documents/SS-35TDS.pdf SS2004 2 part Overview http://siliconesolutions.com/ss-2004.html Datasheet http://siliconesolutions.com/documents/SS-2004TDS.pdf Usefullist: http://siliconesolutions.com/browse_by_market.html _____________ *Hernon LED* Dissipator 745 - Self shimming acrylic - http://www.hernon-led.com/adhesiveproducts/dissipator-745/ "Comparison" http://www.hernon-led.com/2010/11/dissipator-for-led-production/ _____________ *MasterBond* *Several* http://www.masterbond.com/properties/thermally-conductive-epoxy-adhesives?g= clid=3DCPT17rWotL4CFYaVvQodQYIAvw _____________ *Cast Coat* 11 products http://www.cast-coat.com/ *Product**Description* *Characteristics**CC3-100 * *Unfilled, medium viscosity, general purpose, potting resin* *Transparent Medium viscosity**CC3-105 * *Unfilled, low viscosity, general purpose, potting resin* *TransparentLow viscosity* *CC3-300 **Thermally conductive, electrically insulating, ceramic filled, adhesive or encapsulant* *High viscosityThermally conductive**CC3-301AD * *Thermally conductive, electrically insulating, ceramic filled, potting resin* *Low viscosityThermally conductive**CC3-301ADFR * *Fire Retardant UL 94-V-O approved, thermally conductive electrically insulating, ceramic filled, potting resin* *Fire retardantThermally conductive**CC3-341 * *Thermally conductive, thin glue-line adhesive* *Thin glue-line Thermally conductive**CC3-343 * *Thermally conductive, electrically insulating, conformal coating* *Conformal coating Thermally conductive**CC3-402 * *General purpose, electrically insulating, potting compound**Low cost* *CC3-402A * *General purpose, thermally conductive electrically insulating, UL 94-V-0 approved, fire retardant, encapsulant* *Fire retardantLow viscosityThermally conductive**CC3-450 * *Aluminum filled, heat sink adhesive and tooling resin**Most widely used adhesive by the heat sink industry* *CC3-805 **Self-leveling end seal, e-core & cup core adhesive* *Ferrite adhesive* R --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .