Product Introduction
Momentive SILTRUST™ RTV430 is a two-part, high-strength silicone moldmaking compound engineered for versatility through multiple catalyst options. Its low-viscosity formulation enables excellent detail reproduction, while its medium durometer and superior tear strength support reliable mold performance in both complex and high-temperature casting applications. RTV430 offers stable curing behavior, dimensional accuracy, and long-term durability for a wide range of moldmaking needs.
Momentive SILTRUST™ RTV430 Features
- Compatible with multiple curing agents, such as Beta 5 and Beta 11
- Low-viscosity, easy-flow formulation for precise detail replication
- Medium durometer (30 Shore A) for balanced rigidity and flexibility
- High tear strength for long-lasting mold performance
- Suitable for heat-resistant resin casting and oven-cured processes
- Dimensional stability for large or linear molds
- Wide operating temperature range from -60°C to 200°C
- Low shrinkage during cure for accurate molding
Momentive SILTRUST™ RTV430 Applications
- Art reproduction molds requiring precise detail capture
- High-temperature casting processes, including thermal-cured resins
- Molds for large or linear components needing stability and flexibility
- Precision molding where flowability and low shrinkage are critical
- General-purpose moldmaking with selectable catalyst working times
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
|---|---|
| Color (Base) | White |
| Viscosity (Base) | 55,000 cps |
| Specific Gravity (Base) | 1.08 |
| Beta 5 Catalyst Color | Red |
| Beta 5 Catalyst Viscosity | 50 cps |
| Beta 5 Specific Gravity | 1.22 |
| Beta 11 Catalyst Color | Blue |
| Beta 11 Catalyst Viscosity | 20 cps |
| Beta 11 Specific Gravity | 0.95 |
| Mix Ratio | 10:1 |
| Mixed Color (Beta 5) | Pink |
| Mixed Color (Beta 11) | Light Blue |
| Mixed Viscosity | 47,000 cps |
| Worklife | 90 min (Beta 5), 70 min (Beta 11) |
| Potlife | 180 min (Beta 5), 90 min (Beta 11) |
| Demold Time | 12 minutes |
| Shore A (36 hr) | 30 |
| Shore A (24 hr) | 28 |
| Tensile Strength | 3.1 MPa (450 psi) / 4.1 MPa (600 psi) |
| Elongation | 300% / 360% |
| Tear Strength | 130 ppi / 120 ppi |
| Service Temperature | -60 to 200°C |
| Linear Shrinkage (24 hr) | 0.5% |
| Linear Shrinkage (7 days) | 1.0% |
