Last week,I visited a friend's house which had just been renovated two years ago. I noticed that her house have tile trim on their wall corners, but when I touched them, I realized that they were loose. My friend said that the installers might not have been professional and didn't apply the glue correctly, which caused them to loosen after a year. She doesn't know how to repair it. So I want to write this post to share how can we better prevent this problem? Below, we will discuss the reasons for the loosening of metal trim strips, the repair methods and possible solutions. 

• Thermal expansion and contraction - Due to repeated cold and hot cycles, the fixation of adhesives, screws, etc. will gradually be affected.
• Construction was carried out without thorough cleaning of the surface - dust, grease or moisture on the substrate can reduce adhesion and compactness. If not cleaned thoroughly, it will affect the bonding strength of the adhesive.
• Too little fastening and adhesive is used - relying only on a small amount of glue or sparse fasteners will fail under pressure.

• Inadequate Fastening and Adhesive Use – Relying on just glue or sparse fasteners fails under stress. Dual fastening with adhesive and screws every ~8–12 in (20–30 cm) is ideal.
• Insufficient Overlap or Miscut Joints – Overlaps shorter than 2 in (5 cm) compromise stability, especially in corners with wind or movement stress.
• Structural Movement or Installation Tolerances – Building settlement or vibration can shift trim if proper tolerances aren't maintained.

• Meticulous Measurement & Layout Planning – Pre-plan lengths, overlaps, and fastener placement.
• Use Proper Tools – Offset aviation snips, tin shears, and angle finders ensure accurate cutting and fitting.
• Consistent Fastener Spacing – Every 8–12 in and using low-profile screws helps prevent loose sections.
• Use Closure Strips (for roofing) – Foam closure strips prevent debris or moisture, reducing stress at ends.
• Allow for Thermal Movement – Small expansion gaps combined with sealant and overlaps absorb shifting.
• Regular Inspection & Maintenance – Check key corners twice yearly, especially before/after extreme weather.

Why Ghonor? Ghonor (Foshan Golden Honor Building Materials Co., Ltd.) operates large-scale, high-tech factories in China (20,000 m², 3 extrusion lines) and Vietnam (140,000 m², 15 fully automated lines), all under strict quality control-certified by ISO, SGS, CE

About Ghonor

High-Durability Materials & Coatings

• Aluminum trims with ≥10 μm anodizing, powder coating with ultra-long capabilities (up to 7 m) for lasting finish
• Stainless steel trims in 304/201 grades, crafted via grooving, bending, and punching for precision

Product Variants

• Stainless Steel Flat Trim Strips (201/304): Resistant to rust under moisture, versatile for walls, backsplashes, countertops, furniture, etc.
• Stainless Steel Tile Trims: Wear-resistant, deformation-resistant, rust-resistant, with long service life across demanding environments.
• Metal Tile Trim Benefits: Durable, corrosion-resistant, easy maintenance, aesthetic and versatile.

Customization & One‑Stop Solution

Supports OEM/ODM, custom shapes, finishes (brushing, wood grain, marble grain), colors, and punching options-starting from raw materials to packaging

Performance & Client Data

• 30,000 PCS Aluminum Edge Trims Order To Mexico(Jul 21, 2025)

• 50,000 Aluminum Tile Corner Strips shipped to Slovenia (July 11, 2025)
• 10,000 Round Edge Tile Trims reordered by Ecuador (June 2025)
• 90,000 Pieces Of Aluminium Edging Strips Order To Germany(June 08, 2025)

Combine best-practice installation techniques with Ghonor's proven high-quality trims-especially their anodized aluminum and stainless steel Metal Trim Corners/U-shaped trims-to achieve durable, maintenance-free corner performance backed by real order volumes and material specs.