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Safety Equipment

Sponge Dock Seal

Feature / Parameter Specifications
Product Type Sponge Dock Seal (Compressible Foam Pad Seal)
Core Functions Weatherproof sealing, dust/noise blocking, thermal insulation, and impact cushioning
Material & Structure High-elasticity PU Sponge core with wooden/steel frame backing for secure mounting
Standard Dimensions (W×H) 2600×2800 / 3000×3000 / 3000×3300 mm (Custom sizes available)
Pad Specs & Curtain Sponge Width: 300 mm | Sponge Thickness: 250 mm | Curtain Length: 900 mm
Sealing Performance 95% Air Tightness
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Overview

Definition & Core Function
Sponge Dock Seal is a sealing accessory made primarily of sponge material, installed along the edges of doors or door frames. It fills gaps through elastic compression to achieve:
  • Soundproofing, Dustproof & Waterproof: Blocks external noise, dust, and rain from entering indoor spaces.
  • Thermal Insulation: Reduces air exchange between indoors and outdoors, helping to save energy for air conditioning or heating.
  • Impact Cushioning: Reduces impact when closing doors, protecting both the door and the frame.
Due to its low cost and easy installation, sponge dock seals are widely used in residential buildings, offices, hotels, and light industrial settings.
Core Materials & Structure:
  • Sponge Type: PU Sponge (Polyurethane)
  • Advantages: High elasticity, adjustable density, suitable for applications requiring strong sealing (e.g., equipment doors).
  • Disadvantages: Prone to mold when exposed to moisture for long periods, requiring a waterproof coating.
Auxiliary Structure:
  • Adhesive Backing Layer: Uses wooden or steel frames for easy and secure installation.
  • Metal/Plastic Slots: Some models require embedding into door frame slots for enhanced durability.
Specifications & Airtightness
Dimensions WxH Sponge Width Sponge Thickness Curtain Length Air Tightness Sealing Performance
2600×2800 300mm 250mm 900mm 95%
3000×3000 300mm 250mm 900mm 95%
3000×3300 300mm 250mm 900mm 95%
Note: Customization for special sizes is available upon inquiry.