Galvanized Before Welding (GBW) mesh is an affordable and flexible choice for various applications, from small projects to large ones. It involves coating steel wires with zinc before welding them into different mesh sizes, which enhances their durability by protecting against rust and corrosion. The range includes various wire thicknesses: lighter ones for small animal cages, ensuring safety and long-lasting use, and thicker ones for strong fences that provide solid barriers.

However, GBW mesh has a downside. The welding heat can remove the zinc coating at wire junctions, exposing the steel and making it vulnerable to moisture and quicker corrosion. This problem is less significant in indoor or covered settings where the mesh isn’t exposed to harsh elements. Choosing thicker wires can be beneficial for their stronger resistance to corrosion, helping to maintain the mesh’s integrity even if initial galvanization is compromised during welding.

Specifications

The common specifications of Galvanized Before Welding (GBW) mesh, organized by wire gauge and detailing the corresponding mesh openings, are as follows:

16 Gauge
Mesh Openings:

• 1/2″ x 1″ (12.7 mm x 25.4 mm): Often used for detailed enclosures or partitions where smaller openings are needed.
• 1″ x 1″ (25.4 mm x 25.4 mm): Suitable for a variety of applications including animal cages, garden fencing, and security partitions.

14 Gauge
Mesh Openings:

• 1″ x 1″ (25.4 mm x 25.4 mm): Ideal for robust residential and commercial fencing where a balance of visibility and security is necessary.
• 1″ x 2″ (25.4 mm x 50.8 mm): Commonly used for fencing and enclosures that require a larger opening for visibility while still maintaining a level of security.
• 2″ x 4″ (50.8 mm x 101.6 mm): Typically used in more industrial applications or where larger opening sizes are permissible for security and containment.

12-1/2 Gauge
Mesh Openings:

• 2″ x 4″ (50.8 mm x 101.6 mm): Strong and durable, this gauge and opening size is ideal for heavy-duty applications such as security barriers or large animal enclosures.
• 1″ x 2″ (25.4 mm x 50.8 mm): Offers a good balance of strength and flexibility, suitable for both residential and commercial uses where medium security is required.

Galvanized Before Welding (GBW) mesh offers several straightforward benefits:

• Cost-Effective: It’s generally cheaper than other galvanizing methods, making it a budget-friendly option for many projects.
• Uniform Coating: The wires are galvanized before welding, ensuring a consistent protective layer against rust and corrosion.
• Smooth Finish: GBW mesh has a cleaner appearance because there are no rough spots at the welds, making it visually appealing for visible installations.
• Ease of Handling: The smooth coating reduces the risk of injuries during handling and allows for easier fabrication.
• Versatile Use: Suitable for a variety of applications including fences, enclosures, and concrete reinforcement.
• Quick Production: The pre-weld galvanizing speeds up production times, which can be crucial for tight schedules.
• Good Durability: Although the weld points are slightly less protected, the overall mesh is durable and strong.