Description
This platinum cure liquid silicone compound is used for creating skin effects, movie special effects, production molds, medical prosthetics, and cushioning applications. It is suitable for industrial applications with a service temperature range of -54°C to 232°C (-65°F to 450°F).
Features
- Soft, super-strong, and stretchy material for skin and creature effects.
- Infinite color effects with Silc Pig™ pigments or Cast Magic™ powders.
- Easy to use with a mix ratio of 1A:1B by weight or volume.
- Can be thinned with Silicone Thinner™ or thickened with THI-VEX™.
- Cures at room temperature with negligible shrinkage.
- Vacuum degassing recommended to minimize air bubbles.
Technical Properties
- Mix Ratio By Volume: 1A:1B
- Mix Ratio By Weight: 1A:1B
- Pot Life: 25 minutes
- Cure Time: 4 hours
- Shore Hardness: 20 A
- Specific Gravity: 1.08 g/cc
- Specific Volume: 0.92 cm³/g
- Tensile Strength: 3.79 MPa (550 psi)
- 100% Modulus: 338 kPa (49 psi)
- Elongation @ Break: 620%
- Die B Tear Strength: 21.0 kN/m (120 pli)
- Color: Translucent
- Useful Temperature (min): -54°C (-65°F)
- Useful Temperature (max): 232°C (450°F)
- Dielectric Strength: >350 volts/mil
- Mixed Viscosity: 20,000 cps
Instructions
Safety
Use in a well-ventilated area. Wear safety glasses, long sleeves, and rubber gloves. Avoid latex gloves as they inhibit curing. Store and use at room temperature (23°C/73°F). Warmer temperatures reduce working and cure time and shelf life.
Cure Inhibition
Contaminants like latex, tin-cure silicone, sulfur clays, and certain woods can inhibit curing. Test compatibility on a small area. Apply clear acrylic lacquer to prevent inhibition. Ensure sealer dries thoroughly before applying silicone.
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.
Applying A Release Agent
A release agent can ease demolding. Use Ease Release™ 200 for silicone molds. Lightly brush and mist the release agent, allowing it to dry for 30 minutes.
Measuring and Mixing
Pre-mix Part B thoroughly. Mix Parts A and B (1A:1B by volume or weight) for 3 minutes, scraping sides and bottom. Vacuum degassing is recommended to remove air. Vacuum until material rises, breaks, and falls, then continue for 1 minute.
Curing / Post Curing
Cure at room temperature (23°C/73°F) before demolding. Avoid curing below 18°C (65°F). Optional post-curing at 80°C (176°F) for 2 hours and 100°C (212°F) for 1 hour enhances properties. Cool to room temperature before use.
If Using As A Mold
Silicone molds naturally release casts initially. For polyurethane, polyester, and epoxy resins, use a release agent to prevent mold degradation.
Thickening and Thinning
THI-VEX™ thickens silicone for vertical applications. Silicone Thinner™ reduces viscosity for easier pouring but may reduce tear and tensile strength. Do not exceed 10% by weight.
Mold Performance & Storage
Mold life depends on use. Clean with soap solution and dry before storage. Assemble multi-part molds and store on a level surface in a cool, dry place.
