Description
This soft, stable platinum silicone rubber is designed for creating silicone makeup appliances and skin effects. It is compatible with Skin-Tite™ silicone adhesive and medical-grade pressure-sensitive adhesives for temporary skin application. The product has a Shore hardness of 2A and can be combined with SLACKER™ deadening agent to create a soft silicone gel for filling encapsulated silicone pieces. An infinite number of color effects can be achieved by adding Silc-Pig™ silicone pigments. Cured rubber can also be painted with the Psycho Paint™ system.
Features
- Soft - Shore 2A hardness allows for softer appliances using less SLACKER™ deadening agent
- Low Viscosity - combined with long working time reduces bubbles and makes pouring easier
- Cures Dry - will not leach silicone fluid
- Long Working Time - 10-12 minute working time is good for larger pours or injections
- Fast Cure - 40 minute cure time allows for quick turnaround of castings or molds
- More Workable - has a ‘gel’ stage - slushing the material into prosthetic molds is easier
Technical Properties
- Mix Ratio By Volume: 1A:1B
- Mix Ratio By Weight: 1A:1B
- Pot Life: 12 minutes
- Cure Time: 40 minutes
- Shore Hardness: 2 A
- Specific Gravity: 1.062 g/cc
- Specific Volume: 0.94 cm³/kg
- Color: Translucent
- Tensile Strength: 1.98 MPa (288 psi)
- 100% Modulus: 260 kPa (37.8 psi)
- Elongation @ Break: 763%
- Die B Tear Strength: 10.7 kN/m (61 pli)
- Mixed Viscosity: 18,000 mPa·s
Use Cases
Ideal for creating silicone makeup appliances, skin effects, and prosthetics, it can be used in film and television special effects, theatrical productions, and cosplay.
Instructions
Pouring
For best results, pour the mixture in a single spot at the lowest point of the containment field, allowing the rubber to seek its own level. A uniform flow will help minimize entrapped air. If using as a mold material, ensure the liquid rubber levels off at least 1.3 cm (1/2”) over the highest point of the model surface.
Safety
- Use in a well-ventilated area.
- Wear safety glasses, long sleeves, and rubber gloves to minimize contamination risk. Use vinyl gloves only, as latex gloves will inhibit curing.
- Store and use material at room temperature (23°C). Warmer temperatures reduce working and cure times and shorten shelf life.
Cure Inhibition
- Addition-cure silicone rubber may be inhibited by contaminants, resulting in tackiness or lack of cure. Test compatibility with a small-scale test if concerned.
- Apply a clear acrylic lacquer to the model surface to prevent inhibition. Allow to dry thoroughly before applying rubber.
- Note: Platinum silicones do not work with sulfur-heavy modeling clays. Test for compatibility before use.
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 rubber molds.
- Lightly brush the release agent over all model surfaces, followed by a light mist coating. Let dry for 30 minutes.
- If unsure about sealer/release agent effectiveness, perform a small-scale test.
Measuring and Mixing
- Pre-mix Part B thoroughly.
- Mix Parts A and B (1A:1B by volume or weight) for 3 minutes, scraping container sides and bottom.
- Vacuum degassing is recommended to remove air. Vacuum for 2-3 minutes (0.98 bar), leaving room for volume expansion.
- Pour mixture at the lowest point of the containment field for uniform flow and minimal air entrapment.
Curing / Post Curing
- Allow rubber to cure at room temperature (23°C) before demolding. Do not cure below 18°C.
- Optional: Post cure at 80°C for 2 hours and 100°C for 1 hour for maximum properties. Cool to room temperature before use.
If Using As A Mold
- Silicone rubber molds naturally release, but mold lubricity may decrease over time. No release agent is needed for wax or gypsum.
- Apply a release agent like Ease Release™ 200 before casting polyurethane, polyester, and epoxy resins to prevent mold degradation.
Thickening and Thinning
- Use THI-VEX™ to thicken for vertical applications. Adjust viscosity by varying THI-VEX™ amount.
- Silicone Thinner™ lowers viscosity for easier pouring and degassing. Do not exceed 10% by weight of total system (A+B).
Mold Performance & Storage
- Mold life depends on use. Abrasive materials like concrete erode detail, while non-abrasive materials like wax do not.
- Clean molds with soap solution and dry before storing. Assemble multi-part molds and store on a level surface in a cool, dry environment.
