Dock and Lock Gate Refurbishment:
Resin Injection 101 Metal Repair Paste & 202 Ceramic Repair Fluid.

Extending the Service Life of Critical Marine Infrastructure. Dry Dock Gate refurbishment. 

Lock and dock gates are high-value assets subject to constant mechanical stress, hydrostatic pressure, and aggressive fluid-flow environments. Prolonged exposure to seawater, silt, impact loading, and operational cycles accelerates corrosion, pitting, erosion, and fatigue cracking, all of which compromise reliability and increase whole-life costs.

Traditionally, structural repairs required gate removal, fabrication, and replacement, a process that disrupts navigation, demands specialized lifting equipment, and carries significant downtime costs. Today, resin-based composite repair systems provide a field-applied alternative that restores surface integrity and reinforces against future damage without lengthy shutdowns.

The Two-Step Epoxy Repair and Protection Process.

Step 1: Rebuilding with Resimac 101 Metal Repair Paste.

• Composition: Solvent-free, metallic-filled, two-part epoxy system.
• Application profile: Thixotropic, non-slumping, and suitable for vertical or overhead application. Can be applied in sections up to 25 mm without sagging.
• Performance: Once cured, the compound can be machined to precise tolerances, critical for restoring sealing faces, bearing housings, and flange connections.
• Common applications: Pitted metal surfaces, cracked pump casings, eroded flange faces, and structural voids.

Step 2: Protecting with Resimac 202 Ceramic Repair Fluid.

• Composition: Solvent-free epoxy reinforced with hardened ceramic particles.
• Application profile: Brush-applied, self-levelling fluid coating forming a dense barrier layer.
• Performance: Provides exceptional resistance to erosion, abrasion, and cavitation in aggressive marine environments.
• Common applications: Pump impellers, valve seats, gate plates, and flow-exposed surfaces.

Engineering Advantages of Resin-Based Refurbishment.

In-situ repair capability: avoids costly gate removal and dry-docking.
Reduced downtime: fast application and curing minimize lock or dock closure.
Precision restoration: machinable epoxy enables tolerance recovery for sealing and operational components.
Lifecycle extension: epoxy repairs mitigate recurring corrosion and erosion, extending gate service life beyond design expectancy.
Cost-efficiency: significantly lower capital outlay compared to new gate fabrication and installation.

Asset Management Perspective.

For infrastructure planners and port authorities, epoxy refurbishment aligns with predictive and preventive maintenance strategies. When integrated into condition monitoring programs, these materials:

• Enable proactive intervention before critical failures.
• Support long-term asset lifecycle planning.
• Reduce reliance on costly emergency repairs and spare gate inventories.

Conclusion.

Resimac 101 Metal Repair Paste and Resimac 202 Ceramic Repair Fluid offer a robust, engineered solution for extending the operational life of dry dock and lock gates. By combining structural rebuilding with long-term erosion and abrasion resistance, these systems deliver measurable savings in maintenance budgets, downtime reduction, and asset longevity.

Explore detailed technical data and specifications here:

• Resimac 101 Metal Repair Paste
• Resimac 202 Ceramic Repair Fluid

Types of Lock and Dock Gates. 

Lock and dry dock gates are designed in multiple configurations, each optimised for site-specific hydraulic, structural, and operational conditions:

Mitre Gates: The most widely used type, consisting of two leaves rotating on vertical axes. They form a watertight seal but are vulnerable to wave action, floating debris, and collision forces.
Sector and Radial Gates: Curved, pivoting structures well-suited to high tidal ranges, but demanding precise alignment and complex fabrication.
Caisson Gates: Floating, rolling, or sliding watertight boxes, commonly employed in naval bases and shipyards. Their reversible design allows continued operation during maintenance.
Flap and Lift Gates: Operated by hydraulic or mechanical lifting systems, these gates rotate on horizontal or vertical axes. While effective, they require intricate support structures and are challenging to maintain in situ.
Rolling Gates: Large gates guided on rails and rollers, used for wide entrances. They require extensive civil engineering works and frequent mechanical maintenance.

Each gate type is subject to unique wear mechanisms, corrosion, erosion, impact damage and fatigue, underscoring the importance of advanced refurbishment systems to maintain operational reliability and extend service life.

Partner with Resimac SA.

With extensive experience and a focus on innovation, Resimac SA is your trusted partner in the power generation industry. Our advanced coatings are designed to protect your assets, enhance efficiency, and reduce operational costs.