Applications

Insulcast MRTV 9

Brand: Insulcast

Package Sizes:

  • Contact us for details

Shelf Life:

  • 6 months

Product Description: Insulcast MRTV 9 is a high tear strength, high elongation, addition-cure mold-making RTV silicone rubber. It features low shrinkage and accurately reproduces intricate details, making it ideal for creating durable molds.

Key Features:

  • High Tear Strength: Ensures durability and longevity of molds.
  • High Elongation: Allows flexibility and resilience.
  • Low Shrinkage: Maintains dimensional stability over time.
  • Excellent Detail Reproduction: Captures fine details for precise mold making.

Recommended Applications:

  • Mold Making: Ideal for creating molds that require high precision and durability.
  • Prototyping: Suitable for producing prototypes with intricate details.
  • Artistic and Industrial Replications: Used in applications where accurate reproduction of details is essential.

Uncured Properties (@ 25°C)

Property Part A Part B Mixed Test Standard
Color Black Clear Visual
Viscosity (cP) 100,000 <1,000 50,000 ASTM D1084
Specific Gravity 1.15 1.00
Mix Ratio (by Weight) 100:10
Pot Life (100g mass) 1.5-2.0 hours

Cured Properties (@ 25°C)

Property Value Test Standard
Hardness (Shore A) 24 ASTM D2240
Tensile Strength (psi) 500 ASTM D412
Tensile Elongation (%) 1,000 ASTM D412
Tear Strength (Die B) (lb/in) 117 ASTM D624
Tear Strength (Die C) (lb/in) 125 ASTM D624
Coefficient of Thermal Expansion (°C⁻¹) 4.2 × 10⁻⁴
Thermal Conductivity (BTU-in/(ft²·hr·°F)) 1.8
Thermal Conductivity (W/m·K) 0.26
Service Temperature Range (°C) -55 to +204

Electrical Properties (@ 25°C)

Property Value Test Standard
Dielectric Strength (V/mil) 550 ASTM D149
Dielectric Constant (1 kHz) 2.94 ASTM D150
Dissipation Factor (1 kHz) 0.002 ASTM D150
Volume Resistivity (ohm-cm) 1.6 × 10¹⁵ ASTM D257

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