Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Product Highlights
- Proprietary copolymer system offers excellent adhesion, very good hard crease resistance and low point to point resistance.
- Ideal for long traces.
- Can be thinned with solvent for spraying or dipping for EMI/RFI shielding applications.
- Extremely tough, scuff resistant and crease resistant.
- Excellent adhesion to polyester, polyimide, ITO and most other substrates.
- Formulation balances longer open time on screens and short drying time in subsequent drying processes.
- Compatible with our UV curable dielectrics, all of our conductive epoxy adhesives and our UV curable component encapsulants and conformal coatings.
Applications & Uses
- Applications
- Application Method
- Application Guidelines
AG-500A will settle when it is stored in sealed containers over a period of time. It is essential to mix the material thoroughly before use to re-disperse any settled silver particles and to return the ink to a more desirable viscosity.
Screening
A monofilament polyester (157 to 230 mesh) or a stainless steel (165 to 325 mesh) screen is recommended, with emulsion thickness between .001" and .004". A polyurethane squeegee with a Shore ‘A’ durometer between 60 and 70 is recommended.
Thinning & Cleanup
Use Solvent-30 to thin and use MEK or suitable screen cleaner for cleaning. Contact Applied Ink Solutions for other solvent recommendations. If solvent based inks are left on screens for any length of time, the ink will gradually thicken as solvent evaporates. If ink is to be left on an inactive press for any length of time, solvent evaporation can be minimized by pooling the ink into a small area instead of leaving it spread out over a large area. Pooling the ink reduces the surface area, thus slowing the drying process. Always check the viscosity of ink that has been recovered from a screen and add small amounts of solvent while mixing thoroughly to restore viscosity. Solvent can be added to reclaim thickened ink as long as the ink has not dried and hardened completely.
Drying
It is essential that all residual solvent be removed from this ink once it is applied. Incomplete drying will cause the ink to appear dry on the surface while trapping solvent underneath the surface. Over time, this trapped solvent will migrate out of the ink, and can cause adhesion problems with any material, such as dielectrics, applied over the ink.
Completeness of Drying
Evaluate the point-to-point resistance along one of the screened conductive paths after one pass through the drying oven or one cycle in a batch-drying oven. Run the substrate through another drying cycle. Measure the point-to-point resistance again along the same path and compare it to the original reading. If the resistance decreases by less than 10%, then the ink is essentially dry after the first drying cycle or pass through the oven. If the resistance decreases by more than 10%, then more drying time is required to completely remove the solvent.
Properties
- Color
- Appearance
- Thixotropic silver colored ink
- Typical Properties
- Typical Properties
Drying Schedule is 90 seconds to 4 minutes at 130°C (depending upon air flow and oven heat profile)
| Value | Units | Test Method / Conditions | |
| Viscosity (20 Shear at 25°C, Spec) | 3,400 - 4,200 | cps | Brookfield DV III, SC4-14 spindle |
| Total % NV Solids | 61.5 +/- 2 | % | — |
| Hegman Gauge | max. 25.0 | µ | — |
| Surface Resistivity (Spec, when fully dried) | max. 0.010 | Ω/square/mil | — |
| Surface Resistivity (Typical, when fully dried) | 0.005 | Ω/square/mil | — |
| Viscosity (20 shear at 25°C, Typical) | 3875.0 | cps | — |
Safety & Health
- Safety & Health
Products manufactured by Applied Ink Solutions are intended for use in an industrial environment by trained personnel. Please follow proper health/safety processes regarding storage, handling and processing of the products.
Storage & Handling
- Shelf Life
6 months in unopened container.