Applications

SYLGARD™ 1-4128 Conformal Coating

  • Technology: Heat-cure, solvent-free, silicone conformal coating
  • Brand Name: SYLGARD™ 1-4128 Conformal Coating
  • Manufacturer: The Dow Chemical Company
  • Package Size: 0.45 kg, 3.6 kg, 18 kg, 200 kg (not all sizes may be available)
  • Shelf Life: 24 months (at 32°C)

1. Product Overview:

SYLGARD™ 1-4128 Conformal Coating is a two-part, solvent-free, medium viscosity silicone coating that is heat curable. It is designed for fast, low-temperature curing and provides a flexible, moisture-resistant barrier with excellent adhesion to a wide variety of electronic components, especially those using low-solids (no-clean) and no-lead solder flux residues. This product is ideal for moderate to high production throughput and is suitable for applications requiring longer storage or shipping time.


2. Applications:

  • Protective coating for rigid and flexible circuit boards
  • Printed wiring board (PWB) applications
  • Sensitive components and fine-pitch designs

3. Typical Properties:

Property Unit Before Mixing After Mixing
Viscosity cP, mPa·sec, Pa·sec 475 cP 475 cP
Tack Free Time minutes 3 min N/A
Cure Time minutes 5 min N/A
Durometer (Shore 00) 64 Shore 00 N/A
Shelf Life months 24 months N/A

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