Transparent silicone rubber is an addition-cure (platinum-catalyzed) silicone rubber compound. It is a high-viscosity two-component (RTV-2) silicone system consisting of Part A and Part B.
The material is designed for a 1:1 or 10:1 mix ratio by weight, curing at room temperature; heating can accelerate processing. Once cured, it forms a flexible, durable rubber with high transparency, high tear strength, and excellent dimensional stability due to very low shrinkage, making it ideal for molds requiring transparency and high precision.
Temperature Sensitivity
The curing speed of transparent liquid silicone is significantly affected by temperature. As an addition-cure system, increasing the temperature increases the activity of the platinum catalyst, resulting in a faster cure.
FEATURES
High Transparency
Visual alignment & precision.
Detail Reproduction
Captures finest textures.
Low Shrinkage
≤0.1% for high stability.
High Strength
Excellent tear resistance.
Wide Hardness
10-40 Shore A.
Two Ratios
1:1 or 10:1 options.
Heat Resistance
Up to 250°C (482°F).
Safe & Non-toxic
Odorless formulation.
APPLICATIONS
Transparent silicone is valued for applications where visibility of the master model is critical. Its high transparency supports precise parting line placement during cutting, making it ideal for complex mold making in jewelry design, rapid prototyping, and artistic applications. It is also widely used for casting materials such as epoxy resins, polyurethane, and wax, due to its ability to capture very fine details and produce durable, reusable molds.
TECHNICAL DATA
Cure Inhibition Warning
Avoid contact with the following substances to prevent uncured sticky surfaces:
- Sulfur: Modeling clays containing sulfur, latex gloves, natural rubber.
- Tin: Condensation-cure (tin) silicone or its residue.
- Amines: Certain epoxy catalysts and 3D printing resins.
General Processing Notes
- Test & Match: Conduct a small scale test to confirm suitability. Always use Part A and Part B from the same kit.
- Degassing: Transparent silicone has high viscosity and cannot naturally release bubbles. Vacuum degassing is strongly recommended to ensure perfect transparency.
- Temperature: Do not use below 20°C (68°F). Curing slows down significantly in cold environments.
- Thickness: For best transparency, keep maximum mold wall thickness at 20 mm or less.
Safety Precautions
- Transparent liquid silicone rubber is generally considered non hazardous and non toxic under normal conditions of use; follow standard industrial hygiene practices. When handling, wear vinyl gloves; avoid latex gloves, which may inhibit cure.
- For eye contact, rinse thoroughly with water for 15 minutes and seek medical attention.
- Keep out of reach of children. Adult supervision required.
Storage & Shelf Life
- Storage Conditions
- Store in a cool, dry place at room temperature (15-25°C / 60-77°F). Keep away from direct sunlight.
- Shelf Life
- 12 months from the date of manufacture when stored properly. Storing at higher temperatures may reduce the usable shelf life.
- Opened Containers
- Reseal immediately to prevent contamination.
