Product Overview
The CHT F2 silicone sealing component is a highly specialized, modular environmental gasket engineered explicitly for F2-series communication junction boxes and high-density fiber optic splice closures. Functioning as the primary defense line at critical cable entry ports and housing seams, this precision-molded component ensures the uncompromised transmission of fiber optic network signals. It forms an airtight, heavy-duty barrier that completely seals out water, dust, industrial corrosion, mold, and bacterial growth in high-stakes telecom infrastructures.
Core Performance & Technical Advantages
- Certified UL94 V-0 Flame Retardancy: Formulated from high-grade self-extinguishing silicone compound. It effectively suppresses flame propagation post-curing, meeting the uncompromising safety standards required for high-density electronic and telecom field equipment.
- IP68 Extreme Climate Sealing: Achieves an absolute IP68 waterproof and dustproof rating via advanced compression-type engineering. Operating flawlessly across an ultra-wide temperature range of -40°C to +80°C, it prevents any moisture ingress that could cause severe signal attenuation.
- Mechanical Stress & Pull Buffering: With a targeted tensile strength of $\ge 2\text{ MPa}$ and an elongation at break of $50\% \sim 150\%$, the cured elastomeric matrix provides superb structural resilience. It absorbs mechanical pulling, bending stress, and external vibrations at the optical cable joint without losing seal integrity.
- Complete Electromagnetic Isolation: Features a superior volume resistivity of $\ge 1 \times 10^{14}\ \Omega\cdot\text{cm}$ and a breakdown voltage of $18 \sim 20\text{ kV/mm}$, guaranteeing that communication signals remain fully protected against local electromagnetic interference.
Technical Specifications
| Key Parameter | Specifications & Capabilities (Fully Customizable) |
| Product Name | Custom Silicone CHT F2 Sealing Component / Insert Block |
| Material Base | 100% Premium Flame-Retardant Silicone |
| Flame Retardant Grade | UL94 V-0 (Certified) |
| Ingress Protection Rating | IP68 Standard |
| Hardness (Shore A) | Shore A 20 ~ 60 (Adjustable to optimize cable clamping force) |
| Tensile Strength | $\ge 2\text{ MPa}$ |
| Elongation at Break | $50\% \sim 150\%$ |
| Volume Resistivity | $\ge 1 \times 10^{14}\ \Omega\cdot\text{cm}$ |
| Breakdown Voltage | $18 \sim 20\text{ kV/mm}$ |
| Color Matrix | Grey, White, Red, Yellow, Green, Black, or Custom Pantone Match |
| Size Customization | Tailored to fit F2 housing profiles and standard conduits (e.g., 50mm / 110mm) |
| Sales Model & MOQ | Wholesale / B2B OEM Only; Minimum Order: 1,000 pcs |
Typical Application Scenarios
- CHT F2 Fiber Optic Splice Closures: Specifically deployed to seal and isolate multi-cable fusion joints, perfectly complementing a standardized fiber bending radius ($\ge 40\text{ mm}$) to mitigate macrobending losses.
- Heavy Outdoor Infrastructure: Ideal for overhead aerial lines, underground direct burial, and pipeline installations exposed to torrential rains, constant high humidity, or severe thermal cycling.
- Chassis & Component Protection: Highly effective for the flame-retardant encapsulation, bonding, and gap-sealing of high-power PCB capacitors, inductors, shell frames, and cable routing entryways.
