Shield Machine Silicone Foam Sealing Strip

Shield Machine Silicone Foam Sealing Strip is specifically engineered for shield tunneling machines (TBM), designed to provide reliable sealing performance in the harsh underground construction environment. Manufactured from high-quality silicone foam material, this sealing strip delivers excellent compression recovery, weather resistance, and long-term durability, making it an ideal sealing solution for shield machine applications.

Description

Product Overview

Our silicone foam sealing strip is specifically engineered for shield tunneling machines (TBM), designed to provide reliable sealing performance in the harsh underground construction environment. Manufactured from high-quality silicone foam material, this sealing strip delivers excellent compression recovery, weather resistance, and long-term durability, making it an ideal sealing solution for shield machine applications.

Key Features

Superior Compression Recovery: The silicone foam structure offers outstanding elastic recovery, ensuring a tight and consistent seal even under repeated compression cycles during tunnel boring operations.
Excellent Temperature Resistance: Withstands a wide temperature range from -60°C to +200°C, maintaining stable sealing performance under extreme working conditions.
Outstanding Weather & Aging Resistance: Resistant to UV radiation, ozone, and aging, ensuring a long service life in harsh underground environments.
Waterproof & Dustproof: Provides effective protection against water ingress, dust, and debris, safeguarding critical components of the shield machine.
Chemical Resistance: Resistant to water, steam, and various chemicals, suitable for complex geological conditions.
Flexible & Easy to Install: The soft foam structure allows for easy compression and installation, adapting to irregular surfaces and gaps.

Technical Specifications

Item	Specification
Material	Silicone Foam
Density	0.3–0.6 g/cm³ (customizable)
Hardness	10–30 Shore C
Temperature Range	-60°C to +200°C
Tensile Strength	≥0.3 MPa
Elongation at Break	≥100%
Compression Set	≤10% (70°C × 22h)
Flame Retardancy	Optional (UL94 V-0 available)
Color	Grey, White, Red, or Customized
Thickness	1–20 mm (customizable)
Width	Customizable upon request

Applications

Shield machine tail seal
Segment joint sealing
Cutter head sealing
Hydraulic system sealing
Tunnel waterproofing and dustproofing

Customization Options

We offer customized solutions to meet specific project requirements, including:

Custom dimensions (thickness, width, length)
Custom density and hardness
Adhesive backing (single or double-sided)
Flame retardant grades
Special shapes and profiles

Product