Platinum Cured Silicone Rubber: Top 5 Benefits & Applications
Platinum cured silicone rubber is increasingly preferred across industries due to its unmatched purity, durability, and compatibility with sensitive environments....
Platinum cured silicone rubber is increasingly preferred across industries due to its unmatched purity, durability, and compatibility with sensitive environments. Compared to other curing methods, platinum curing results in a cleaner product with low extractables, making it suitable for high-performance applications in the medical, food, and aerospace sectors.
As the global silicone market is expected to exceed $20 billion by 2027, interest in premium materials like platinum cured silicone rubber continues to grow. At Elastostar Rubber Corporation, we manufacture high-quality custom tubing and molded components using this advanced formulation to meet demanding performance requirements. Below, we highlight the key benefits and common applications of platinum cured silicone rubber.
What is Platinum Cured Silicone Rubber?
Platinum-cured silicone rubber is a high-performance material that is processed using platinum as a catalyst during the curing stage.Also referred to as addition curing, this method produces a pure, stable, and durable silicone with no residual by-products, unlike peroxide-cured alternatives.
Known for its flexibility, temperature resistance, and biocompatibility, platinum cured silicone is commonly used in medical, food, aerospace, and electronic industries. Its purity makes it suitable for use in environments that require clean, non-reactive materials.
This material is selected in applications that demand consistency, safety, and longevity, making it a preferred choice among silicone rubber options.
Top 8 Benefits of Platinum Cured Silicone Rubber
- High Purity and Safety
The platinum curing process eliminates the formation of harmful by-products. Platinum cured silicone remains chemically clean, making it suitable for contact with sensitive materials, including food and medical equipment. - Excellent Temperature Resistance
Platinum cured silicone rubber handles a broad temperature range—from extreme cold to high heat—without degrading. It remains stable in demanding environments, including aerospace and automotive systems. - Superior Flexibility and Elasticity
The material retains flexibility under mechanical stress and varying conditions. Platinum cured silicone tubes are often used in dynamic sealing applications that require bendable, long-lasting performance. - Durability and Longevity
Resistant to UV, ozone, and chemical exposure, platinum cured silicone stands up to prolonged environmental stress. Its aging properties make it suitable for outdoor and high-demand applications. - Biocompatibility
Because it is non-toxic and stable within the body, platinum cured silicone meets medical-grade standards. It is widely used for medical implants, surgical tubing, and contact devices. - Low Compression Set
The material quickly returns to its original shape after compression. This allows platinum cured silicone rubber to maintain its sealing performance over time. - Electrical Insulation
Its excellent dielectric strength makes platinum cured silicone ideal for electrical and electronic components that require consistent insulation against heat, moisture, and voltage. - Customization Flexibility
Platinum cured silicone rubber can be extruded or molded into complex shapes, offering adaptability for custom parts, seals, and tubing in various industries.
Additional Benefits of Platinum Cured Silicone Rubber
| Benefit | Description |
| High Tear Strength | Withstands tearing and mechanical stress in tough applications |
| Excellent Translucency for More Visibility | Offers clarity for visual inspection in tubing or molded parts |
| Non-Yellowing | Maintains appearance even after prolonged UV exposure |
| No Peroxide By-products | Ensures clean processing with no residual catalysts |
| Highly Hydrophobic | Resists moisture buildup in wet or humid environments |
| Extended Life in Peristaltic Pumps | Performs reliably in dynamic pumping systems over long periods |
Applications of Platinum Cured Silicone Rubber
Medical and Healthcare
In healthcare settings, platinum cured silicone is used in devices that come into direct contact with human tissue and fluids. Products such as medical tubing, prosthetics, and catheters are made from this material due to its purity and biocompatibility. For example, surgical rubber tubing made from platinum cured silicone is preferred in hospitals for its safety and performance.
Food and Beverage Industry
The food sector uses platinum cured silicone rubber in applications requiring non-toxic and odor-free materials. This includes food-grade tubing, gaskets, and baking molds. Its ability to maintain shape and cleanliness makes it a reliable option in hygienic production lines.
Automotive and Aerospace
In high-performance vehicles and aircraft, platinum cured silicone is used for seals, gaskets, and hoses that must endure thermal cycling, vibration, and exposure to fluids. Its stability across temperature extremes helps maintain system reliability under demanding conditions.
Electronics and Electrical Insulation
Platinum cured silicone rubber provides electrical insulation for wires, connectors, and enclosures. It protects sensitive electronics from moisture, chemicals, and heat. Additionally, sponge rubber tubing made from this material offers both cushioning and insulation in delicate assemblies.
Material Comparison Table
| Property | Platinum Cured Silicone | Peroxide Cured Silicone | EPDM |
| Temperature Resistance | Excellent (-50°C to +230°C) | Good (-40°C to +200°C) | Moderate (-40°C to +150°C) |
| Chemical Resistance | High | Moderate | Good (acids/alkalis) |
| Durability | Superior | Good (post-curing needed) | Good (especially outdoors) |
| Biocompatibility | Excellent | Moderate | Not biocompatible |
Platinum-Cured Silicone vs. Peroxide-Cured Silicone
But which one should you choose? Let’s explore the key differences.
Purity and Safety
When comparing purity levels, platinum cured silicone rubber offers a much cleaner profile. The platinum curing method eliminates the risk of harmful by-products, making this material well-suited for medical, food-grade, and pharmaceutical uses.
In contrast, peroxide cured silicone can retain trace by-products from the curing process, which may be unsuitable for sensitive applications. For environments that demand high cleanliness, platinum cure silicone rubber is the safer and more reliable option.
Performance Differences
Platinum cured silicone performs well in high-temperature settings and is known for its extended service life. Its wide operating temperature range enables it to function reliably in extreme environments without rapid degradation. This makes it a strong choice for the automotive, aerospace, and electronics sectors.
Its long-lasting flexibility and resilience allow components like seals and gaskets to maintain their shape and function under pressure over time.
Environmental Impact
Manufacturing platinum cured silicone rubber results in fewer emissions and cleaner output. The absence of hazardous by-products not only benefits product users but also helps reduce environmental harm during production and disposal.
Compared to peroxide cured silicone, this cleaner process makes platinum cure silicone a smarter option for companies that want to align with responsible manufacturing standards.
Future Trends and Innovations in Platinum-Cured Silicone
Industries are expanding their use of platinum cured silicone in modern applications such as wearables, robotics, and green energy. Its adaptability, strength, and biocompatibility make it a natural fit for next-generation products.
Some notable advancements include:
- Enhanced flexibility and tensile strength
- Wider adoption in medical, cleanroom, and high-tech sectors
- Cleaner, low-impact production methods
As demand grows for reliable and safe materials, platinum cured silicone rubber is becoming a go-to option for product developers across multiple industries.
How Elastostar Customizes Rubber Tubing Solutions?
At Elastostar Rubber Corporation, we specialize in high-performance, platinum-cured silicone tubing tailored to the exact needs of your industry. From medical-grade silicone rubber tubing to custom O-Rings and silicone rubber cord profiles, our products are engineered for long-lasting durability and compliance with strict standards.
Each solution is tested thoroughly to ensure it performs well in real-world conditions. Our team collaborates with you to recommend the best silicone rubber materials, offering personalized support throughout the process.
Backed by years of experience across aerospace, pharmaceutical, construction, and defense, Elastostar remains a trusted supplier of precision-engineered custom silicone products.
Conclusion
Platinum cured silicone offers a combination of purity, heat resistance, and durability that sets it apart from peroxide cured silicone. From long-term flexibility to clean manufacturing, it provides consistent performance in demanding applications.
For custom solutions that deliver lasting results, platinum cured silicone rubber is a dependable material across a range of industries.Ready to explore how our silicone products can enhance your application? Contact Elastostar Rubber Corporation today at [email protected] or call us at 614-841-4400 to discuss your custom project.
