Applications

Insulcast 3316 HFR-S

Insulcast 3316 HFR-S

Brand: Insulcast

Package Sizes:

Shelf Life: 12 months

Product Description: Insulcast 3316 HFR-S is a fast-setting, low-viscosity, flame-retardant (UL 94 V-0) epoxy system designed for casting applications. When cured with Insulcure 383 Blue, it achieves room temperature cures in approximately 12 hours. This system offers a combination of excellent thermal conductivity, high peel strength, good thermal shock resistance, and cures to a smooth, glossy surface. Additionally, Insulcast 3316 HFR-S can function as an adhesive, setting in thin films in about 2 hours.

Key Features:

  • Fast Setting: Cures rapidly, especially when used as an adhesive.
  • Low Viscosity: Ensures easy casting and impregnation.
  • Flame Retardant: Meets UL 94 V-0 standards for fire resistance.
  • Excellent Thermal Conductivity: Efficient heat dissipation.
  • High Peel Strength: Provides strong adhesion.
  • Thermal Shock Resistance: Withstands rapid temperature changes.
  • Smooth, Glossy Surface: Aesthetic finish upon curing.

Recommended Applications:

  • Casting Applications: Ideal for creating molds and encapsulating components.
  • Adhesive Applications: Suitable for bonding materials where quick setting is advantageous.
  • Electronics Potting: Protects electronic components from environmental factors.
  • Thermal Management: Useful in applications requiring efficient heat dissipation.

Uncured Properties

Property Insulcast 3316 HFR-S Insulcure 383 Blue Test Standard
Color Blue Blue –
Viscosity (cP) 3,000 200 ASTM D2393
Specific Gravity 1.55 0.98 –
Mix Ratio (by Weight) 100:20 – –
Mixed Viscosity (cP) 2,500 – ASTM D2393
Pot Life (100g mass) 30 minutes – –

Cured Properties

Property Value Test Standard
Hardness (Shore D) 85 ASTM D2240
Tensile Strength (psi) 10,000 ASTM D638
Tensile Elongation (%) 3.5 ASTM D638
Flexural Strength (psi) 15,000 ASTM D790
Compressive Strength (psi) 12,000 ASTM D695
Thermal Conductivity (BTU-in/(ft²·hr·°F)) 4.5 –
Coefficient of Thermal Expansion (°C⁻¹) 45 × 10⁻⁶ –
Flammability Rating UL 94 V-0 –
Heat Distortion Temperature (°C) 90 –
Service Temperature Range (°C) -40 to 130 –

Electrical Properties

Property Value Test Standard
Dielectric Strength (V/mil) 400 ASTM D149
Dielectric Constant (1 kHz) 4.2 ASTM D150
Dissipation Factor (1 kHz) 0.02 ASTM D150
Volume Resistivity (ohm-cm) 1 × 10¹⁴ ASTM D257

Cure Schedule:

  • Room Temperature Cure: 12 hours at 25°C (77°F) when using Insulcure 383 Blue.
  • Elevated Temperature Cure: 2 hours at 50°C (122°F) can accelerate the curing process.

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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