Description
This silicone rubber is designed for creating detailed molds with ease. It offers a Shore A 20 hardness, making it flexible yet durable for various applications. The mix ratio is 1:1 by weight, ensuring a straightforward preparation process. With a pot life of 6 minutes, it allows for quick work, and the demold time is just 30 minutes, enabling fast production cycles. Additionally, it is skin safe, making it suitable for creating molds that come into contact with the skin.
Features
- Shore A 20 hardness for flexibility
- 1:1 mix ratio by weight
- 6-minute pot life
- 30-minute demold time
- Skin safe for direct contact applications
Instructions
Safety
Use in a properly ventilated area. Wear safety glasses, long sleeves, and rubber gloves to minimize contamination risk. Use vinyl gloves only, as latex gloves will inhibit the cure.
Storage
Store and use material at room temperature (23°C/73°F). Warmer temperatures will reduce working and cure time and decrease the shelf life of unused material. Use as soon as possible.
Cure Inhibition
Silicone rubber may be inhibited by certain contaminants, resulting in tackiness or lack of cure. Latex, sulfur clays, certain wood surfaces, newly cast polyester, epoxy, or urethane rubber may cause inhibition. Test compatibility by applying a small amount of rubber onto a non-critical area. If inhibition occurs, apply a clear acrylic lacquer to the model surface and allow it to dry thoroughly before applying rubber.
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 make demolding easier. Ease Release™ 200 is recommended for releasing silicone from silicone or other surfaces. Conduct a small test application to determine suitability.
Measuring & Mixing
Pre-mix Part A and Part B separately. Dispense required amounts into a mixing container (1A:1B by volume or weight) and mix thoroughly, scraping the sides and bottom of the container.
Optional: Vacuum Degassing
Vacuum degassing helps eliminate entrapped air. After mixing, vacuum material at 29 inches of mercury, leaving room for expansion.
Pouring
Pour mixture in a single spot at the lowest point of the containment field. Let the rubber seek its own level. Ensure the liquid rubber levels off at least 1.3 cm (1/2 inch) over the highest point of the model surface.
Curing
Allow rubber to cure for 30 minutes at room temperature (23°C/73°F) before demolding.
Heat Curing
Reduce demold time with mild heat. After pouring at room temperature, place the mold in a hot box or oven at 60°C (140°F). Time will vary depending on mold thickness.
Making a Brush On Mold?
Use a thickener for brush-on application and effects. Do not use other series silicones for brush-on mold making.
Mold Performance & Storage
The physical life of the mold depends on usage. Casting abrasive materials can erode mold detail, while non-abrasive materials will not. Clean molds with a soap solution and dry before storage. Store molds on a level surface in a cool, dry environment.
