Pyra-Sil™ 891
- Chemical Family
- Silicones
Pyra-Sil™ 891 is a one-part, room temperature cure conformal coating used for sealing, potting, seam filling, and encapsulation. It self-levels and cures tack-Free in 8 minutes. Fully cured in 24 hours at 25°C, it forms a flexible yet durable seal/coat that protects against weathering, moisture, UV ray damage, and high temperatures. Incure 891 fluoresces under blacklight for inspection and can be coated on a variety of substrates including metals and plastics. It is designed for manual brushing as well as high volume automatic dispensing systems.
Product families
Applications
- Electronics Coatings
Product Families
- Protective Coatings
Other characteristics
- Brand
- Pyra-Sil
- Features
Chemical Resistant, Excellent Dielectric Properties, Good Moisture Resistance, Good UV Protection, Good Weather Stability, High Temperature Performance, Highly Versatile, Self-Leveling, Tack-free
- Product Type
- 1K (1 component) Coating
- Application Method
- Brush, Spray
- Compatible Substrates & Surfaces
- Metal, Plastics
- Color
- Transparent
- Markets
- Electrical & Electronics
- Storage
This product carries shelf-life of 6 months in the original, unopened packaging. For optimum results, all Pyra−Sil™ products should be stored in original containers below 22ºC (72ºF) in a cool dry place. Sealed containers in original packaging are guaranteed for 6 months when stored in the recommended temperature.
- Advantages
Incure Pyra-Sil™ one-part moisture cure silicones cure at room temperature with no curing ovens and the energy costs. Adheres to many metals, ceramics, glass, laminates and plastics. Surface cures within 5 mins and 95% strength acheived from 24 to 72hrs. Heat < 60°C (140°F) may be used to accelerate cure. Excellent physical and electrical properties over a broad range of operating conditions.
- Appearance
- Clear
- Cure
- Air Dry
- Moisture Cure
- Technology
- Ready-to-Use Products
- Labeling Claims
- Environmentally Friendly
- Application Methods
- Brush
- Spray
- Application Procedure
Prepared surface can be coated simply by brushing method, dipping or dispensing (for selective area coating). Products with viscosities lower than 500cP are suitable for use on spraying systems.
- Certifications and Compliance
- RoHS Compliant
- Ready to Use Product Features
- Chemical Resistant
- Excellent Dielectric Properties
- Good Moisture Resistance
- Good UV Protection
- Good Weather Stability
- High Temperature Performance
- Highly Versatile
- Self-Leveling
- Compatible Substrates and Surfaces
- Metal
- Plastics
Technical data
Table 1 of 2
4 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Elongation | 315.0 | % | — |
| Hardness | 13 to 20 | Shore A | — |
| Service Temperature | -45 to 260 | ºC | — |
| Tensile Shear | 220.0 | psi | ASTM D1002-94 |
Table 2 of 2
2 rows| Characteristic | Value | Unit |
|---|---|---|
| Density | 0.99 | g/ml |
| Viscosity (rpm) | 800 - 1,200 | cP |
