Products

SilFORT* PHC 587B Hardcoat

  • Product code: SilFORT* PHC 587B
  • Manufacturer: Momentive
  • Package size: contact us for details
  • Shelf Life: contact us for details

SilFORT™ PHC587B is a clear, non-yellowing silicone hard coat designed for enhanced durability and weather resistance on polycarbonate surfaces. It protects against UV radiation, heat, cold, rain, snow, and ice, while also offering abrasion resistance from sand and dirt.

This primerless coating improves productivity by allowing direct adhesion to polycarbonate and features faster curing at 130°C. It complies with ECE automotive regulations for European forward lighting applications.

Key Features & Benefits

  • UV resistance
  • Thermal and weather resistance
  • Abrasion and mar resistance
  • High optical clarity
  • Chemical and solvent resistance
  • Primerless adhesion to polycarbonate
  • Single-step coating process

General Properties

Property Value
Solids Content (% by weight) 24.2 – 26.8
Solvent Composition Methanol, 1-butanol, 2-propanol
Flash Point (Penske Martens, Closed Cup) 19.4°C
Density (g/cm³) 0.875 – 0.995
pH 5.5 ± 1
Viscosity (cSt @ 25°C) 3 – 10

Performance on Polycarbonate (6 – 8µm Coating Thickness)

Property Test Method Value
Taber Abrasion (500 cycles, CS10F wheels, 500g load) ASTM D1003 <15% Δ Haze
Water Immersion Resistance (65°C) >250 Hours

Chemical & Solvent Resistance

SilFORT™ PHC587B resists exposure to the following substances:
✔ 10W30 Motor Oil
✔ Power Steering Fluid
✔ Ethylene Glycol Antifreeze
✔ 0.1N Sulfuric Acid
✔ Heavy-Duty Brake Fluid (Glycol-Based)
✔ 0.1N Sodium Hydroxide
✔ Windshield Washer Fluid
✔ Paste Auto Polish
✔ Heavy-Duty Detergent
✔ Petrol (Leaded Gasoline)
✔ Diesel Fuel
✔ Battery Acid

Application & Curing Conditions

Process Step Condition
Application Methods Dip, Spray, or Flow Coating
Dry Film Thickness 6 – 8µm
Tack-Free Drying Time 5 – 10 minutes (Room Temp.)
Curing Temperature 130°C (266°F)
Curing Time 30 minutes

Everwide FX244-1: High Performance for Precision Molding

FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

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