Internal Angle Corner 100x75mm Galvanized

Internal Angle Corner 100x75mm Galvanized

The Gutter Internal Angle Corner 100x75mm Galvanized is a precision-engineered steel profile designed to reinforce and waterproof internal joints in gutter systems, downpipes, and construction edges. Its asymmetrical L-shape (100mm × 75mm legs) ensures compatibility with standard gutter dimensions while providing structural rigidity. The hot-dip galvanized coating offers superior corrosion resistance, making it ideal for long-term outdoor exposure.

Functional Advantages

A. Structural Performance

• Impact Resistance: Reinforces vulnerable internal corners against mechanical stress.

• Load Distribution: Prevents gutter sagging at joints under water/debris weight.

• Thermal Stability: Minimal expansion/contraction in temperature fluctuations.

B. Weatherproofing

• Corrosion Protection: Zinc layer withstands 15+ years in moderate climates.

• Water Diversion: Seamless 90° angle directs water flow without leakage.

• UV Resistance: Matte finish reduces solar degradation vs. painted alternatives.

C. Installation Benefits

• Pre-Drilled Holes: Optional perforations (every 300mm) for screw/rivet fixing.

• Tool Compatibility: Can be cut with angle grinders, tin snips, or nibblers.

• Sealing Ready: Flat surfaces accommodate silicone, butyl tape, or polyurethane sealants.

• Applications

• Primary Use Cases:

  • Gutter Systems: Joining internal corners of uPVC, aluminum, or steel gutters.

  • Downpipes: Strengthening elbow joints and vertical-to-horizontal transitions.

  • Roofing: Valley gutters, parapet wall flashings, and skylight perimeters.

  Secondary Applications:

  • Construction: Edge protection for plasterboard, stucco, or tile work.

  • Industrial: Ducting corners, machine guards, and sheet metal fabrication.

  • Installation Guidelines

    Step-by-Step Process:

    1. Measurement: Cut angle to length using appropriate tools (deburr edges).

    2. Dry Fit: Test alignment in the gutter joint; mark screw positions.

    3. Fixing: Secure with:

       • Stainless steel screws (4.8mm×25mm, max 400mm spacing)

       • Pop rivets (4mm diameter for metal gutters)

    4. Sealing: Apply continuous bead of gutter sealant along inner edges.

    5. Inspection: Verify water-tightness with hose test post-installation.

        

       Pro Tips:

       • Overlap multiple angles by 50mm for long runs.

       • Use rubber mallet to adjust fit without damaging coating.