Silver Conductive Epoxy (8331S)
Silver Conductive Epoxy (8331S)
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We are indulged in supplying Silver Conductive Epoxy (8331S). The 8331S Silver Conductive Epoxy Adhesive is an economical electronic grade epoxy that combines long working time and good conductivity with ease of use. It has a convenient 1-to-1 mix ratio and 45 hours pot life, which once mixed behaves essentially like a 1-part adhesive for the duration of a work shift. However, unlike 1-part adhesives that often require high heat (130 170oC), it will cure at 65oC in less than 2 hours. The cured conductive adhesive bonds very well to most of the substrates used in electronic assemblies. It resists thermal and mechanical shocks and provides the low-resistivity needed for many operating conditions. The 8331S epoxy adhesive is great for forming conductivity seals, bonding, and repairing of electronic devices.
- Good 0.0060 Ω·cm electrical resistivity and 0.95 W/(m·K) thermal conductivity
- Easy 1:1 mix ratio and long working time—may be mixed once and then used as a 1-part epoxy for a four hour production shift
- Optimal cure temperature of only 65 °C — lower than most 1-part epoxies and suitable for use on heat sensitive components
- Stores and ships at room temperature — no freezing or dry ice required
- Very long shelf life of at least two years — even when stored at room temperature
- Strong water and chemical resistance to brine, acids, bases, and aliphatic hydrocarbons
- Room temperature cure is possible (96 hours)
- Excellent adhesion to most electronic substrates
- Silver Conductive Epoxy: 4 Hr. Working Time / High Conductivity. The 8331S epoxy has many uses in the production, repair, and assembly of electronics in microelectronics and optoelectronics.
- It has been designed for production environments as a replacement for one part silver conductive epoxy systems when high cure temperatures can potentially damage heat sensitive components or where frozen storage requirements or shelf life of one part epoxies are a concern.
- Like all conductive epoxies, it operates as a lead-free replacement for metal solder and it excels at bonding heat-sensitive electronic components.
- It also provides excellent EMI/RFI shielding and is very effective at filling seems between the metal plates.
Application Instructions : Follow the procedure below for best results. Heat cure is recommended to get the best possible conductivity.
To prepare 1:1 (A:B) epoxy mixture:
- Remove cap or cover.
- Measure one part by volume of A.
- Measure one part by volume of B.
- Thoroughly mix the parts together with a stir stick until homogeneous.
- Apply to with an appropriate sized stick for the application area.
- Remember to recap the syringe or container promptly after use.
- Tip : Due to the high viscosity and abrasiveness of the silver filler, you may preheat part A and part B to increase the flow and improve air release.
To heat cure the 8331S Epoxy:
- Put in oven at 65oC [149oF] for 120 minutes or above. For optimum conductivity and up to 50 minutes cure, heat cure at temperatures to 100oC.
- Tip - Hair dryers are normally rated not to exceed 60oC, so they can generally be used to accelerate the cure.
- You can cure the epoxy faster by using higher temperatures of up to 100oC [302oF].
- Attention : Keep the curing temperature well below temperature limit of heat sensitive components that may be present. As a guideline, remember that commercial grade devices normally can be safely operated up to 70oC, industrial grade up to 85oC, and military grade up to 175oC.
- Attention : Heat guns can easily exceed the temperature limits for your assembly - they should not be used.
To room temperature cure the 8331S epoxy:
- Let stand for 96 hours or more.
- Tip - While the product can be cured at room temperature, the best conductivity is achieved with the application of some heat.
||15 g (6 mL)
||Two 7g syringes, 3mL each
||125 g (50 mL)
||500 g (200 mL)
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