描述
MacDermid Alpha Micromax 5025 Silver Conductor for Reliable Membrane Switch and Flexible Circuit Interconnects
Type: Silver Conductor Ink
Application: Membrane Switch, Flexible Circuit
Color: Silver
Solids: 60.3–61.7%
Shelf Life: 6 months
Micromax 5025 is a general-purpose silver conductor ink formulated for low-voltage circuitry on flexible substrates. It carries a maximum service temperature of 110°C. After thermal shock, humidity, salt spray, and silver migration exposure, electrical properties remain consistent.
Micromax 5025 silver conductor ink from MacDermid Alpha is formulated for low-voltage circuitry, particularly on flexible substrates. It runs on manual, semi-automatic, and reel-to-reel equipment, which makes it applicable to both prototype and volume membrane switch and flexible circuit production. Polyester, polyimide, paper, and epoxy glass are listed as compatible substrates.
The ink carries 60.3–61.7% solids and a viscosity of 20–30 Pa.s. Box-oven drying is 120°C for 5–6 minutes; reel-to-reel drying is 140°C for 1 minute. Cured traces hold resistivity at 50 mΩ/sq or less after a 180° crease, reach 1H or higher pencil hardness, and show minimal change after environmental testing. Work life is over 2 hours. Store sealed at 5–30°C; unopened shelf life is 6 months.
Genuine MacDermid Alpha Micromax Imported Stock & Technical Support
We hold regular stock of authentic MacDermid Alpha Micromax 5025 silver conductor ink. Original factory TDS and batch-specific COA are available on request for your membrane switch and flexible circuit programs.
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Complete TDS, COA, and regulatory documentation available
Key Features of MacDermid Alpha Micromax 5025
- Silver conductor ink developed for low-voltage flexible circuit traces
- Rated for service temperatures up to 110°C
- Compatible with manual, semi-automatic, and reel-to-reel printing
- 60.3–61.7% solids for consistent deposition
- Viscosity 20–30 Pa.s for stable screen printing
- Box-oven dry: 120°C for 5–6 minutes; reel-to-reel dry: 140°C for 1 minute
- Resistivity ≤50 mΩ/sq after 180° crease
- Pencil hardness ≥1H for abrasion resistance
- Stable electrical performance after thermal shock, humidity, salt spray, and silver migration tests
- Adheres to polyester, polyimide, paper, and epoxy glass
- Screen clean-up with ethylene diacetate or methyl propanol acetate
- Mix work life exceeds 2 hours
Primary Applications
- Membrane switch conductors — silver traces for switch circuitry
- Flexible circuit interconnects — low-voltage circuitry on flexible substrates
- Paper and epoxy glass circuits — compatible with a range of substrate materials
- Reel-to-reel production — suitable for high-volume flexible circuit manufacturing
Full Technical Specifications
| Property | Typical Value | TDS Reference |
| Product Type | Silver conductor ink | TDS: Silver Conductor |
| Application | Membrane switch conductor | TDS: Membrane switch conductor |
| Solvent or Thinner | Micromax 8210 | TDS: Micromax 8210 |
| Solid Content | 60.3 to 61.7 % | TDS: 60.3 to 61.7 % |
| Maximum Service Temperature | 110 °C | TDS: 110 °C |
| Viscosity | 20 to 30 Pa.s | TDS: 20 to 30 Pa.s |
| Mask Mesh | 325 | TDS: 325 |
| Drying Time | 5 to 6 minutes | TDS: 5 to 6 min |
| Drying Temperature | 120 °C | TDS: 120 °C |
| Theoretical Coverage | 230 to 320 cm²/g | TDS: 230 to 320 cm²/g |
| Substrate Compatibility | Polyester, polyimide, paper, epoxy glass | TDS: Polyester, polyimide, paper, epoxy glass |
| Screen Types | Stainless steel, polyester | TDS: Stainless steel, polyester |
| Printing Methods | Reel-to-reel, semi-automatic, manual | TDS: Reel-to-reel, semi-automatic, manual |
| Typical Circuit Line Thickness | 12 – 15 μm | TDS: 12 – 15 μm with 325-mesh stainless steel screen |
| Work Life | > 2 hours | TDS: > 2 hours |
| Clean-up Solvent | Ethylene diacetate or Methyl propanol acetate | TDS: Ethylene diacetate or Methyl propanol acetate |
| Resistivity after Flex | ≤ 50 mΩ/sq at 25.4μm (15 sec after test) | TDS: ≤ 50 |
| Crease (180°, 1 cycle) | ≤ 50 | TDS: ≤ 50 |
| Abrasion Resistance, Pencil Hardness | ≥ 1H | TDS: ≥ 1H (ASTM D3363-74) |
| Soldering | Not recommended | TDS: Not Recommended |
| Change in Physical Properties after Environmental Tests | Insignificant | TDS: Insignificant |
| Change in Electrical Properties after Environmental Tests | < 10 % | TDS: < 10 |
| Shelf Life | 6 months | TDS: 6 months |
| Storage Temperature | 5 – 30 °C | TDS: 5°C – 30°C |
Note: All listed values are typical and may vary by batch. Values based on MacDermid Alpha official TDS. Independent qualification testing is required prior to production use.
Recommended Processing Conditions
| Parameter | Recommended Value | TDS Reference |
| Mixing Prior to Use | Thoroughly mix to redisperse solids | TDS: thoroughly mix |
| Screen Mesh | 325 mesh | TDS: 325 |
| Printing Methods | Reel-to-reel, semi-automatic, manual | TDS: Reel-to-reel, semi-automatic, manual |
| Drying (Box Oven) | 120°C for 5-6 minutes | TDS: 120°C for 5-6 min |
| Drying (Reel-to-Reel) | 140°C for 1 minute | TDS: 140°C for 1 min |
| Clean-up Solvent | Ethylene diacetate or Methyl propanol acetate | TDS: Ethylene diacetate or Methyl propanol acetate |
| Thinner | Micromax 8210 | TDS: Micromax 8210 |
| Work Life | > 2 hours | TDS: > 2 hours |
Handling and Storage Recommendations
| Storage Rules | Store tightly sealed in a clean, stable environment at 5-30°C. | TDS: 5°C – 30°C |
| Shelf Life | 6 months in unopened containers from date of shipment. | TDS: 6 months |
| Pre-use Preparation | Thoroughly mix prior to use. Some settling of solids may occur during storage. | TDS: thoroughly mix |
| Transportation | Under normal shipping conditions, no temperature control is expected. For extended transport periods, confirm product suitability. | TDS: normal shipping conditions |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | MacDermid Alpha Micromax 5025 original factory technical data sheet | Request TDS |
| COA | Batch-specific certificate of analysis | Request COA |
| SDS | Safety Data Sheet for handling and storage | Request SDS |
Frequently Asked Questions
Can Micromax 5025 run on a reel-to-reel line?
Yes, reel-to-reel is a listed printing method. The TDS recommends a reel-to-reel drying condition of 140°C for 1 minute, which fits continuous high-volume flexible circuit production.
Which substrates work with Micromax 5025?
The compatibility list covers polyimide, polyester, paper, and epoxy glass, so the ink fits both flexible and rigid circuit designs.
How do I clean screens after printing Micromax 5025?
Use ethylene diacetate or methyl propanol acetate as listed on the TDS. Sticking to the specified solvent keeps screen condition and print consistency stable between runs.
Why is Micromax 5025 rated for higher-temperature service?
The maximum service temperature is 110°C. The product is described as a general-purpose silver conductor for higher-temperature operations, and physical properties stay largely unchanged after environmental testing.
Does Micromax 5025 need a specific thinner?
The TDS lists Micromax 8210 as the thinner. If dilution is required, using that product avoids shifting printability or cured film properties.
How does Micromax 5025 hold up after environmental testing?
The TDS reports data for thermal shock, dry heat, humidity, salt spray, silver migration, and sulfur dioxide exposure. Physical property change is insignificant, and electrical property change stays under 10%.
How should opened containers of Micromax 5025 be stored?
Keep containers tightly sealed at 5–30°C in a clean, stable environment. Unopened shelf life is 6 months from shipment. Some settling can occur, so mix thoroughly before reuse.
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We supply authentic MacDermid Alpha Micromax 5025 silver conductor ink for membrane switch and flexible circuit programs. Contact our team for bulk quotations, sample availability, technical documentation, and application support.
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Disclaimer: All technical data on this page are for general guidance only and are not product specifications. Buyers must carry out independent trials and verify suitability before bulk ordering. Actual values may vary between production lots.
