Product Overview
Specifically engineered for the critical entry points of telecommunication enclosures, our custom silicone cable holder bottom seals provide ultimate base-level protection. Installed where fiber optic cables enter a junction box from below, these heavy-duty gaskets form an impenetrable, compression-type barrier. They actively prevent water pooling, rising ground moisture, dust, industrial corrosion, mold, and bacterial growth from creeping into the housing, ensuring zero signal attenuation for critical fiber networks.
Core Performance & Technical Advantages
- Certified UL94 V-0 Flame Retardancy: Formulated from premium self-extinguishing silicone compound. It effectively suppresses flame spread at vertical cable entry ports, protecting high-density electronic and telecom equipment.
- IP68 Ingress Protection for Bases: Engineered to handle severe bottom-runoff and heavy rain. Operating flawlessly from -40°C to +80°C, it adapts to complex underground direct burial, overhead, and pipeline infrastructure.
- Cable Stress Buffering: With a tensile strength of ≥ 2MPa and an elongation rate of 50%–150%, this elastic seal absorbs heavy mechanical pulling and cable bending stress at the enclosure base without tearing.
- Superior Electromagnetic Insulation: Features a volume resistivity of ≥ 1 × 10¹⁴ Ω·cm and a breakdown voltage of 18–20kV/mm, guaranteeing completely isolated, interference-free data transmission.
Technical Specifications
| Key Parameter | Specifications & Capabilities (Fully Customizable) |
| Product Name | Custom Silicone Cable Holder Bottom Seal / Base Gasket |
| Material Base | 100% High-Performance Silicone Compound |
| Flame Retardant Grade | UL94 V-0 (Certified) |
| Ingress Protection Rating | IP68 Watertight & Dustproof |
| Hardness (Shore A) | Shore A 20 ~ 60 (Customizable up to 70±2A for high clamp-force) |
| Tensile Strength | ≥ 2 MPa |
| Elongation at Break | 50% ~ 150% |
| Volume Resistivity | ≥ 1 × 10¹⁴ Ω·cm |
| Breakdown Voltage | 18 – 20 kV/mm |
| Available Colors | Grey, White, Red, Yellow, Green, or Custom Pantone Match |
| Sizing Flexibility | Fully customized based on 3D files (e.g., matching 50mm / 110mm conduits) |
| Sales Model & MOQ | Wholesale / B2B OEM Only; Minimum Order: 1,000 pcs |
Typical Application Scenarios
- Telecom Enclosure Base Entry: Used at the bottom ports of cylindrical or square splice closures to isolate fiber fusion joints and support a standard fiber bending radius (≥ 40mm).
- Conduit & Pipe Sleeves: Perfect for sealing larger diameter cable entry pipes (such as 50mm and 110mm ducts) to block water and outdoor pests.
- Electronic Component Fixation: Highly suitable for the bottom bonding, encapsulation, and gap sealing of heavy outdoor capacitors, inductors, and chassis frames.
