Applications

Insulcast 502

Brand: Insulcast

Package Sizes:

Shelf Life:

  • 12 months

Product Description: Insulcast 502 is an unfilled epoxy with low viscosity, designed for general-purpose casting and impregnation. It exhibits excellent electrical and physical properties, making it suitable for a wide range of applications.

Key Features:

  • Low Viscosity: Facilitates easy casting and impregnation.
  • Excellent Electrical Properties: Ensures reliable insulation and performance.
  • High Mechanical Strength: Provides durability and structural integrity.
  • Versatile Curing Options: Compatible with various curing agents for different curing schedules.

Recommended Applications:

  • Electronic Encapsulation: Ideal for potting transformers, capacitors, and circuit boards.
  • Industrial Casting: Suitable for creating molds and prototypes.
  • Impregnation Processes: Enhances the properties of porous substrates.
  • General Adhesive Use: Bonds a variety of materials in industrial settings.

Uncured Properties (@ 25°C)

Property Insulcast 502 Insulcure 9 Insulcure 11B Test Standard
Color Clear Amber Amber
Viscosity (cP) 700 55 200 ASTM D2393
Specific Gravity 1.13 0.97 0.95
Mix Ratio (by Weight) 100:13 100:18
Mixed Viscosity (cP) 200 300 ASTM D2393
Pot Life (100g mass) 45 minutes 5 hours

Cured Properties (@ 25°C)

Property Insulcure 9 Insulcure 11B Test Standard
Hardness (Shore D) 85 87 ASTM D2240
Tensile Strength (psi / MPa) 10,700 / 74 11,000 / 76 ASTM D638
Tensile Elongation (%) 5.4 5.0 ASTM D638
Compressive Strength (psi / MPa) 14,000 / 97 15,600 / 108 ASTM D695
Flexural Strength (psi / MPa) 17,500 / 121 18,000 / 124 ASTM D790
Coefficient of Thermal Expansion (°C) 75 × 10⁻⁶ 75 × 10⁻⁶
Thermal Conductivity (BTU-in/(ft²·hr·°F)) 1.6 1.6
Heat Distortion Point (°C) 85 155
Service Temperature (°C) -40 to +105 -55 to +155

Electrical Properties (@ 25°C)

Property Insulcure 9 Insulcure 11B Test Standard
Dielectric Strength (V/mil) 425 435 ASTM D149
Dielectric Constant (1 kHz) 4.0 4.0 ASTM D150
Dissipation Factor (1 kHz) 0.023 0.023 ASTM D150
Volume Resistivity (ohm-cm) 2 × 10¹⁵ 2 × 10¹⁵ ASTM D257

Cure Schedule:

  • With Insulcure 9:
    • Room Temperature: 4-8 hours at 25°C (77°F); full properties after 24 hours.
  • With Insulcure 11B:
    • Elevated Temperature: 2 hours at 100°C (212°F) for masses less than ½ lb. For masses greater than ½ lb., cure for 2 hours at 80°C (176°F) followed by 2 hours at 100°C (212°F). For high-temperature applications, an additional post-cure of 1 hour at 150°C (302°F) is recommended.

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