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specimen preparation adhesives for scanning electron microscopy
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PELCO® Conductive Graphite Paintavailable in water or alcohol base Water Base (Graphite Paint)Flat surface texture. Average flake size 1µm. Service temperature: 149°C. No outgassing of hydrocarbons, gives less contamination in SEM applications. Ideal graphite conductive paint for FESEM-APPLICATIONS. Slow drying (can be sped up by heat), low strength. MSDS |
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Isopropanol Base (Graphite Paint) Flat surface texture. Average flake size 1µm. Service temperature: 200° C. This conductive graphite paint is used for standard SEM/EDS applications. Relatively fast drying. 16053 MSDS 16054 MSDS
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DAG-T-502 Carbon Paint(different name, same product as Electrodag 502)one component, ready to use Provides conductivity for SEM non-conductive samples which require grounding.502 is a combination of specially processed carbon particles in a fluoroelastomer resin system. It remains flexible over a temperature range of -40°C to 260°C and cures at room temperature. 502 resists oxidation and has good adhesion qualities. The diluent is methyl ethyl ketone (MEK) and has fluid consistency. Solids content is 12.6%. Service temperature range is -40°C to 260°C. |
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| The specimen mount surface should be clean and dry before application.
Keep the container tightly capped when not in use and avoid breathing the vapor. PELCO® Technical Notes, Electrodag® 502, 30g (PDF/230KB) MSDS Varela AS, Luttrell MP, Howerth EW, Moore VA, Davidson WR, Stallknecht DE and Little, SE, 2004. First Culture Isolation of Borrelia lonestari, Putative Agent of Southern Tick-Associated Rash Illness. J Clin Microbiol 42(3): 1163–1169. Vizzier-Thaxton Y, Cox NA, Richardson LJ, Buhr RJ, McDaniel CD, Cosby DE, Wilson JL, Bourassa DV and Ard MB, 2006. Apparent Attachment of Campylobacter and Salmonella to Broiler Breed Rooster Spermatozoa. Poultry Science 85:619-624. Allen DJ and Didio LJA, 1976. Hartmannella and Culbertsoni as Revealed in Scanning Electron Microscopy. Ohio J Sci 76(4):167-171.
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Composition: 1-Methoxy-2 Propanol base 60% Ag Specific Gravity = 2.25 gm/cc. Viscosity = 455 poise |
PELCO® Conductive Liquid Silver Painta reliable conductive ground path for SEM specimensAir drying silver paint to make effective ground. Curable at room temperature and has high adhesion to any material. Surfaces do not have to be prepared prior to application and will adhere to such materials as polymer (phenolic) boards, ceramic, glass, metal, plastic and fiberglass. It should be mixed well with a spatula before using. The container is offered in two sizes (15g and 30g) and is provided with an applicator brush. Silver flake grain size is an average of 80%, <1.0µm. Sheet resistance is 0.02 ohms per square @ 1 mil (0.001” = 0.025mm) thickness and is a function of the coating. Service temperature = 200°C PELCO® Technical Notes, PELCO® Colloidal Silver, Product Numbers. 16031, 16034 (PDF/417KB) 16031 MSDS - 16021 MSDS | |||||||||||||||||||||||||
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"Leitsilber" Conductive Silver Cementa reliable conductive ground path for SEM specimens |
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PELCO® Conductive Silver 187PELCO® Conductive Silver 187 is a dispersion of finely divided silver in an acrylic resin. It is specially formulated for applications demanding the use of low VOC products. It provides high conductivity at very thin dry film thickness on plastic and other nonconductive substrates. It's sheet resistance is 0.015 ohms/sq/mil (25µm). It exhibits excellent environmental aging stability with superior scratch/mar resistance while providing excellent long-term shielding and grounding properties. Surfaces to be coated should be clean and dry
PELCO® Technical Notes, PELCO® Conductive Silver 187 (PDF/421KB) |
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Typical Properties (as supplied)
Typical Properties (as applied) Typical Properties (when dried)
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PELCO® Colloidal Silver Paste, ConductiveIdeal where a nonflowing paste is needed for special applications. Particle size: 0.4-1.0µm, 80% are below 1.0µm. Cures in 16-20 hours, or 30 minutes @125-150°C. Clear lacquer base. Approximate Specific Gravity 2.25g/cc³. Service temperature = 200°C16032 MSDS - 16021 MSDS PELCO® Technical Notes, PELCO® Colloidal Silver Paste, Product Number 16032 (PDF/417KB) |
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PELCO® Conductive Gold Pasteresistant to oxidation and retains measurement integrity over time |
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PELCO® High Performance Silver PasteSilver flakes in an inorganic silicate aqueous solution, specially formulated for demanding applications such as:
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The excellent thermal and electrical conductivity, coupled with the absence of hydrocarbons, makes this product ideal
for demanding specimen preparation in FESEM, XPS, ESCA, SIMS, and auger applications.
PELCO® High Performance Silver Paste provides both high and thermal conductivity
with a silver particle size of 20µm. Silver content >60% by weight.
Cures at room temperature, but requires a 2 hour cure at 93°C (200°F) to achieve high conductivity and
strong bond. Must be fully cured before using this product at cryogenic temperatures. Soluble in water to
260°C (500°F). Above this temperature it becomes almost insoluble.
16047 Technical Note (PDF 1.62MB) MSDS (PDF 102KB) |
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Graphite AerosolForms a thin, uniform conductive surface when sprayed on the sample. Dries very quickly; can be used for low magnification imaging of non-conductive samples. Excellent adhesion to most plastics, glass and metals. Other applications are for use as a lubricant (use dry in vacuum systems) and for plating non-conductors. 10 oz. (283.5g) |
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Leit C Plast™carbon base, good conductivity, large specimens |
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Heavy specimens may also be prepared for viewing in a SEM using Tempfix™ (or the Glue Gun -
see details in our non-conductive section) and LEIT-C-Plast™. First the specimen is fixed into place
with Tempfix™ or the Glue Gun. Afterward, an electrically conductive bridge is made between specimen
mount and specimen using LEIT-C-Plast™. It is not required to wait for drying because neither adhesive outgasses.
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EPO-TEK® Conductive Silver-EpoxyTwo Types:H-22 Epo-Tek® - silver resin paste / liquid hardener: (100:4.5 ratio) H20E Epo-Tek® - silver resin paste / silver resin paste hardener: (1:1 ratio) General Properties |
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Excellent handling charcteristics, extremely long pot life at room temperature for this electrically conductive
silver adhesive. High speed epoxy chip bonding systems are suitable for very fast cures, such as
fast circuit repairs. Can be screen printed, machine dispersed or stamped and can withstand wire
bonding temperatures in the range of 300 - 400°C.
Silver Conductive Epoxy, H-22 Epo-Tek®Two component, silver-filled epoxy system, consisting of a silver resin paste and a liquid hardener
(100:4.5). It is a free flowing paste, 100% solids system characterized by outstanding high temperature
properties as well as excellent solvent, chemical and moisture resistance. It has a long pot life and is
fast curing at relatively low temperatures. Containing no solvents or thinners; it will not outgas. It
can be applied by brush, spatula or hypodermic needle. H-22 can be useful for small angle cleavage in
material science and semi-conductor applications. |
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Silver Conductive Epoxy, H2OE Epo-Tek®
Two component, silver filled, epoxy system consisting of a silver
resin paste and a silver resin hardener (1:1). It is a smooth, thixotropic
paste, 100% solids system characterized by outstanding high temperature
properties and excellent solvent, chemical and moisture resistance. It
has a long pot life and is fast curing at relatively low temperatures.
Will withstand 200°C for 1,000 hours. Containing no solvents or thinners,
it will not outgas. H20E is ideal for electronic applications.
Cures rapidly. Easy to use; the pure silver powder is dispersed in both the
resin and the hardener so that it can be used in a convenient 1:1 mixing ratio.
Non-toxic – complies with USP Class VI Biocompatibility standards. NASA approved. |
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CURE SCHEDULE (minimum bond temperature/time) 175°C ........45 seconds 150°C ..........5 minutes 120°C ........15 minutes 80°C.........90 minutes • Color: bright silver • Consistency: smooth, thixotropic paste • Sheet resistance: .16 ohms/sq/mil • Continuous Operating temperature: 200°C • Degradation Temperature: 410°C • Refrigeration not required. • Low Viscosity (2000cps) MSDS Part A; MSDS Part B PELCO® Technical Notes, H20E Epo-Tek® Silver Conductive Epoxy (PDF/2,066KB)
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Silver Conductive Epoxy
Strong, highly conductive solderless connections and repairs.
Circuit boards. Static discharge shielding and grounding.
MSDS Part A (PDF/22KB);
MSDS Part B (PDF/22KB); Technical Notes (PDF/40KB) |
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Circuit Repairwith handy Silver Conductive PensDraws highly conductive silver traces, jumpers and shielding with high precision.
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Fast Drying Silver Paint
This very fine flake silver (4.5 to 20µm) is suspended in iso-butyl methyl ketone (4-methylpentan-2-one)
and forms a thin, smooth, highly conductive silver film which is both adherent and flexible. 30g. Fast drying
silver suspension has been specifically designed to give increased coverage while maintaining a very high conductivity.
PELCO® Technical Notes, Fast Drying Silver Suspension (PDF/355KB) |
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Conducting Ink PenLeaves a mark which can be read in the electron beam in the SEM; can be used for marking or identifying objects | |||||||||||||||||||||||||
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