Heavy Duty D-Profile Silicone Foam Seal Strip
Product Overview
Heavy Duty D-Profile Silicone Foam Seal Strip is a large-size closed cell silicone foam sealing solution designed for demanding industrial sealing applications. Featuring a unique D-shaped profile with a flat mounting base and rounded compression surface, this silicone foam seal strip provides reliable cushioning, gap filling, thermal insulation, and environmental protection.
Available in 20–70 mm height sizes, these heavy duty silicone foam seals are suitable for applications requiring higher compression capacity, improved sealing performance, and long-term durability. The closed cell silicone foam structure helps prevent water ingress, dust penetration, air leakage, and vibration transmission while maintaining excellent flexibility under harsh operating conditions.
Key Features
Heavy-Duty D-Profile Design
The large D-profile cross section provides a broad, resilient sealing surface for demanding gap-sealing applications. The flat mounting base helps maintain stable positioning, while the rounded compression section provides consistent contact with the mating surface.
Large 20–70 mm Height Range
Available in 20–70 mm height sizes, this profile series is designed for larger gaps and applications requiring greater sealing coverage than smaller D-profile foam strips.
Closed-Cell Silicone Foam Structure
The closed-cell silicone foam construction helps limit moisture absorption and provides effective protection against water, dust and air leakage. It is suitable for indoor and outdoor industrial environments.
Thermal Insulation
Silicone foam provides good thermal insulation and temperature resistance, making these large profiles suitable for equipment exposed to heat, cold and temperature fluctuations.
Weather & UV Resistance
Silicone provides good resistance to UV radiation, ozone, weathering and aging, supporting long-term performance in outdoor and demanding environments.
Vibration & Shock Absorption
The flexible foam structure helps absorb vibration, impact and movement, while providing cushioning between mating components.
Specifications
- Material: Silicone Foam Rubber
- Profile Shape: D-Profile / D-Shape
- Structure: Closed Cell Foam
- Height Range: 20–70mm
- Temperature Resistance: Approx. -60°C to +200°C (custom grades available)
- Color: Black / White / Custom Colors Available
- Hardness: Customizable
- Surface: Smooth Skin / Custom Surface Finish Available
- Installation: Adhesive Backing Available Upon Request
Size Selection
Select the correct Heavy Duty D-Profile Silicone Foam Seal Strip according to the cross-section dimensions (W × H), compression requirements, and sealing gap. Large-size profiles are designed for applications requiring greater sealing coverage and cushioning performance.
Size Chart
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Length Selection Guide
Silicone foam seal strips are available in different lengths depending on profile size, application requirements, shipping method, and order quantity.
• Standard lengths: Most specifications are available in common lengths such as 1 m, 3 m, and 10 m, suitable for sample testing, replacement parts, and regular applications.
• Large profiles: Due to their larger dimensions and shipping requirements, some long-length options may be limited by transportation methods and package requirements. These profiles can be supplied in standard lengths or customized lengths according to customer requirements.
• Bulk orders: For wholesale orders and engineering projects, we offer longer rolls, custom lengths, and production quantities based on project requirements.
• Custom production: If a requested size or length is not currently listed, we can manufacture it using our existing extrusion tooling. Additional tooling charges may not apply when suitable existing tooling is available.
Please select the available length option for each specification. For special lengths, bulk orders, or customized requirements, please contact us for a suitable solution.
Applications
Heavy Duty D-Profile Silicone Foam Seal Strips are commonly used for:
- Industrial equipment enclosures
- Electrical cabinets and control panels
- Machinery doors and access panels
- Large equipment housing seals
- HVAC systems
- Transportation equipment
- Outdoor cabinets and electrical boxes
- Industrial doors and hatches
- Thermal insulation sealing applications
Custom Heavy Duty Silicone Foam Seal Strip
We manufacture custom D-Profile Silicone Foam Seal Strips according to profile dimensions, hardness, density, color, and application requirements. OEM extrusion services are available for industrial sealing projects requiring large-size silicone foam profiles.
Whether used for thermal insulation, weather sealing, vibration reduction, or equipment protection, our heavy duty silicone foam seals provide reliable performance in demanding environments.
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