For most common surface damages, the CONTUBE repair plugs provide a quick, reliable, and cost-effective solution. Upon completion of the repair, the formlining or formwork element can be immediately returned to concrete pouring operations. We offer matching round and elongated repair plugs, which can be cut to various dimensions to suit different series and material types of plastic boards. Furthermore, we provide more diversified customization options based on specific formwork systems or client requirements.


Repair Plug for DURE™ Board

Professional Repair, Restored Like New – The Key to Unlimited Formwork Reusability


Product Positioning

DURE™ Repair Plug is a high-performance, standardized repair solution developed specifically for surface damage on DURE™ boards. Through a simple process, it quickly repairs nail holes, drill holes, and localized damage on the formwork board surface, restoring its integrity and sealing performance. It is an essential consumable for ensuring high-quality "fair-face" concrete finishes, maximizing DURE™ board service life, and reducing overall construction costs.

 Φ60.2mm PlugΦ40.2mm Plug100/150/200mm Sticker
Φ60.2mm Plug
Φ40.2mm Plug
100/150/200 x Φ30.2mm Stick


Why Choose DURE™ Repair Plug?

Conventional repair methods often deliver poor adhesion and are prone to failure. Our repair plug provides the ultimate solution:

  • Perfectly Flush, Fair-Face Finish
    Ultra-thin edge design, paired with a dedicated hole cutter, ensures seamless alignment with the formwork surface after installation. This guarantees a smooth, even concrete surface after demolding, eliminating the need for secondary plastering and its associated costs.

  • Superior Sealing, No Grout Leakage
    Made from slightly elastic polymer material, the plug fits tightly into the hole upon insertion, creating an effective physical seal that prevents cement grout leakage and ensures casting quality.

  • Durable & Reusable
    High-hardness material (Shore 75D-80D) withstands intense vibration without detachment or deformation. It matches the service life of the formwork and can be reused over multiple cycles.

  • Chemically Inert, Easy Demolding
    100% waterproof, acid/alkali-resistant, and corrosion-resistant. Its non-stick surface prevents concrete adhesion, making demolding quick and formwork cleaning simpler.

  • Cost-Effective, Value-Adding
    Quick installation (with dedicated drill bits) allows for easy one-person operation. Significantly improves the refurbishment rate of used DURE™ board, drastically reducing per-use costs and delivering a high return on investment.


Repair Plugs


Technical Specifications
ItemSpecification / Description
MaterialIndustrial-grade high-density polyvinyl chloride (PVC)
Common SizesDiameter: 40mm / 60mm (custom sizes available)
Thickness3mm (precisely matches mainstream formwork thickness)
ColorStandard white (customizable to match formwork color)
HardnessShore Hardness 75D-80D (balanced rigidity, toughness, and impact resistance)
PropertiesWaterproof, corrosion-resistant, acid/alkali-resistant, UV/aging-resistant, mold-proof


Key Application Scenarios
  1. Nail Hole Repair: Effectively seals through-holes left by rivets, connectors, and fasteners during construction.

  2. Surface Damage Repair: Repairs shovel marks, scratches, and localized wear on the formwork surface.

  3. DURE™ Board Refurbishment: Large-scale renewal of used boards, restoring their usability and extending service life.

  4. Custom Solutions: Suitable for major formwork systems in residential, civil construction, and special engineering projects.



DURE™ Repair Welding Rod

In the use of DURE™ board, severe scratches often lead to panel scrapping. Our DURE™ Repair Welding Rod is made from modified polyvinyl chloride material identical in composition to mainstream panels. When applied using a heat gun welding process, it achieves a bond strength comparable to that of the original material.


Welding Rod


Why Choose DURE™ Repair Welding Rod?
  • Thermal Fusion, Truly Seamless
    Unlike simple adhesive filling, our welding rod achieves molecular-level fusion with the substrate through thermal welding. The repaired area is not only flush and smooth but also exhibits excellent tensile strength, ensuring it remains intact under vibration or pressure.

  • Precise Matching, Visually Invisible
    We offer multiple profiles (round, triangular, twin-rod) and various colors (classic gray, white, custom colors) to ensure the repaired area closely matches the panel color, meeting high standards of visual quality.

  • Excellent Workability
    DURE™ Repair Welding Rod offers superior flow characteristics and a moderate melting point. After cooling, it achieves high hardness and good toughness, allowing for easy cutting, grinding, and polishing to achieve a perfectly flush and smooth surface.

  • Corrosion & Weather Resistance
    Inheriting the superior properties of PVC material, it is resistant to acids, alkalis, moisture, and UV radiation. Fully capable of withstanding harsh environments like construction sites, ensuring long-term stability of the repaired areas.


Application Scenarios
  1. Deep Scratch Repair: Fills deep grooves caused by mechanical dragging or hard object scratches.

  2. Crack Reinforcement: Prevents further propagation of panel cracks, extending service life.

  3. Panel Seaming & Sealing: Used for welding between two DURE™ Boards, achieving 100% waterproof and leak-proof joints.


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