For decades, procurement managers and engineers have faced a binary choice: opt for expensive “Fumed” silicone for high-end applications, or settle for standard “General Purpose” rubber for cost-sensitive projects. However, the gap between these two has narrowed significantly with the advancement of high-quality precipitated silicone technologies.
The TN7X0E Precipitated Extrusion Silicone Rubber series represents the new standard in this middle ground. It offers physical properties that rival premium grades while maintaining a cost structure that keeps your finished products competitive.
The “Precipitated” Advantage: More Than Just Cost
Precipitated silicone rubber is often misunderstood as merely a “cheaper” option. While it is cost-effective, the TN7X0E series distinguishes itself through advanced processing that enhances its molecular structure.
According to our specification data sheet, the TN7X0E series delivers performance metrics that are critical for high-stakes manufacturing:
- Mechanical Purity: The material is a “Translucent solid, no obvious mechanical impurities.”
- Visual Clarity: The translucency allows for easy pigmentation.
- Compliance Ready: Fully FDA, ROHS, and REACH certified.
Analyzing the Tear Strength (The Durability Factor)
Even under stress, the TN-750E grade maintains structural integrity with 12kN/m tear strength.
One of the most revealing metrics on any rubber datasheet is Tear Strength. It indicates how well the material resists growing a crack once it has been cut or nicked. Let’s look at the numbers for the TN7X0E series:
| Grade (Hardness) | Tear Strength (kN/m) | Performance Implication |
|---|---|---|
| TN-730E / 740E | 10 kN/m | Excellent resistance for soft, flexible tubing. |
| TN-750E | 12 kN/m | Peak Performance. Superior durability for dynamic seals. |
| TN-780E | 8 kN/m | Standard resilience for rigid profiles. |
Processing Economics: Density and Yield
For the buyer calculating the “price per piece,” Density is the hidden multiplier. The TN7X0E series maintains a low density profile (approx 1.08 to 1.15 g/cm³ for softer grades).
Compared to heavier compounds, the TN7X0E series offers an immediate volume yield advantage—you get more meters of product per kilogram of raw material. Furthermore, the optimized plasticity reduces energy load on machinery.
Conclusion: The Smart Procurement Strategy
The TN7X0E Precipitated Extrusion Silicone Rubber series challenges the notion that you must sacrifice quality for cost. It bridges the gap with FDA compliance and high tear strength.
Stop overpaying for specs you don’t need. Contact our sales engineering team today to compare the TN7X0E datasheet against your current material.
