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Pyra-Sil™ 864

Chemical Family
Silicones

Pyra-Sil™ 864 is a one-part conformal coating that cures at room temperature. When applied, it self-levels and cures in 5 minutes (or 25 seconds @150oC) and is primarily used for sealing, potting, seam-filling, and encapsulation applications. After 24 hours of curing at room temperature, it forms a flexible yet durable seal/coat capable of effective protection against weathering, moisture, UV ray damage, and high temperatures. Incure 864 can be coated on a variety of substrates, including metals and plastics, and is suitable for manual brushing as well as high volume automatic dispensing or spraying systems.

Product families

Ready-to-Use Products — Paints & Coatings
  • 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

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
Chemical Type
Urethane Acrylate, 100% Solids after full cure
Labeling Claims
Environmentally Friendly
Application Methods
  • Brush
  • Spray
Chemical Resistance
Excellent
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

5 rows
CharacteristicValueUnitMethod
Elongation325.0%—
Hardness20 to 30Shore A—
Peel Strength42.0psiASTM D790
Service Temperature-45 to 260ºC—
Tensile Shear225.0psiASTM D1002-94

Table 2 of 2

2 rows
CharacteristicValueUnit
Density0.99g/ml
Viscosity (rpm)400 - 600cP

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