Industry Analysis: How to Determine the Compliance of the Powder Coating on LED High Pole Lights? Street Lamps

The powder coating process for LED high poles is one of the methods for color coating and deep anti-rust treatment. After powder coating, the surface of streetlights or high poles feels smooth, and the bright color gives a high-end, quality appearance.

Today, let’s discuss how to check if the powder coating process of LED high poles is qualified. It’s quite simple. First, find a discreet spot on the LED high pole, such as the base flange area, and hit a point with a blunt object until the primer or galvanized layer is exposed. Then, use a sharp tool to rub around this point. At this moment, you can tell that for a qualified powder coating effect, no matter how much you rub with the sharp tool, only a scratch will appear on the surface of the pole. For an unqualified powder coating effect, the sides of the rubbed area will lift large patches of powder coat, which can be determined as a failed powder coating process.

There are many factors that can cause poor adhesion of the powder coating to the pole. Among them, two are particularly critical.

1. Before powder coating, if the surface rust and debris are not completely cleaned, this situation often occurs in the arm of the light, as many arms are welded with galvanized pipes and channel steel, skipping the overall galvanizing step. Although the pipes and channel steel are galvanized raw materials, the welds are not treated for anti-rust, leading to rust over time. Once rust occurs, the surface powder coat will naturally flake off without any contact, which looks unsightly.

2. Besides rust residue, another lesser-known technical issue causing paint peeling is often perplexing for many LED high pole manufacturers. Even if the rust residues on the pole are cleaned, the galvanized layer is smooth and even, and the powder coating baking temperature is adequate, why does paint still peel? The reason is quite simple: during the overall powder coating process, everyone tends to overlook a small issue. After the pole has been baked in the oven, there is a hurry to pull it out to cool down, which is the main cause of paint peeling. To solve this problem, when the baking temperature is adequate, do not rush to take it out. Instead, wait for the oven temperature to drop to below 50 degrees Celsius before pulling it out to completely resolve the issue.

Through the above introduction, you should have a relative understanding of the surface process issues of LED high poles. The paint peeling of LED high poles affects the cityscape, and if similar issues are found, it is crucial to contact the manufacturer promptly for resolution.

Purchasing LED high poles from Bitpott manufacturers specializing in outdoor lighting production, with years of rich production experience and advanced manufacturing equipment, ensures you get quality LED high poles. Inquire about the price of square LED high poles for assistance.