Description
This platinum-catalyzed silicone rubber is designed for special effects and display applications. It consists of two liquids that are mixed and cured to form a solid, clear rubber. The material can be broken into pieces resembling glass, ice, or diamonds. Adding Silc-Pig™ pigments allows for vibrant colors.
Features
- Mix Ratio By Volume: 1A:1B
- Mix Ratio By Weight: 1A:1B
- Pot Life: 120 minutes
- Cure Time: 16 hours
- Shore Hardness: 33 A
- Specific Gravity: 0.97 g/cc
- Specific Volume: 1.03 cm³/g (28.6 cu. in./lb.)
- Color: Clear
- Dielectric Strength: 319 volts/mil
- Dielectric Constant, 100Hz: 3.17
- Mixed Viscosity: 150 mPa·s
Coverage Rates
- Trial Unit (1.81 kg / 4 lbs): 0.29 m² (3.17 ft²) at 6.35 mm (0.25”), 0.15 m² (1.58 ft²) at 12.7 mm (0.5”)
- Gallon Unit (14.51 kg / 32 lbs): 2.36 m² (25.4 ft²) at 6.35 mm (0.25”), 1.18 m² (12.7 ft²) at 12.7 mm (0.5”)
- 5 Gallon Unit (48.53 kg / 107 lbs): 7.90 m² (85 ft²) at 6.35 mm (0.25”), 3.95 m² (42.5 ft²) at 12.7 mm (0.5”)
Instructions
Measuring & Mixing
Store and use materials in a warm environment (23°C/73°F). Use clean, dry plastic containers and stirring sticks. Wear safety glasses, long sleeves, and vinyl gloves. Dispense equal parts by weight or volume into a mixing container. Mix thoroughly for at least three minutes, scraping the sides and bottom. Avoid whipping to prevent air bubbles. Vacuum degassing can eliminate bubbles if needed.
Pouring & Curing
Pour mixture into a plastic container or mold. Cure inhibition may occur with some surfaces. Use a release agent like Ease Release™ 200 for silicone molds. Cure overnight at room temperature (23°C/73°F). Do not cure below 18°C (65°F). Apply mild heat (60°C/150°F) to speed up curing.
Inhibition & Performance
Test compatibility with surfaces to avoid cure inhibition. Sulfur-based clays and latex rubber may cause inhibition. Apply a clear acrylic lacquer as a barrier coat if needed. The material may stick to some surfaces; use Ease Release™ 200 to facilitate release. After curing, the material can be removed and used as needed. Conduct a small test application to ensure suitability for your project.
Because no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question.
Note: Even with a sealer, platinum silicones will not work with modeling clays containing heavy amounts of sulfur. Do a small scale test for compatibility before using on your project.
