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Trimless Channel Letter Coil

December 11, 2023

The commonly used materials of trimless channel letter coil include pure aluminum, 3003 aluminum-manganese alloy and 5052 aluminum-magnesium alloy. Pure aluminum is a soft aluminum alloy with excellent electrical and thermal conductivity, which is suitable for the production of channel letter aluminum coils. However, the strength and hardness of pure aluminum are low, and it is easy to be affected by external forces and deformed. 3003 aluminum manganese alloy is an aluminum alloy with high strength and hardness, with excellent processing properties and plasticity, suitable for the production of channel letter aluminum coil. In addition, 3003 aluminum manganese alloy also has good corrosion resistance and oxidation resistance, suitable for the production of outdoor channel letter. 5052 aluminum alloy is an aluminum alloy with good strength and corrosion resistance, which is suitable for making channel letter aluminum coils. In addition, 5052 aluminum magnesium alloy also has good fatigue resistance and impact resistance, suitable for the production of large billboards and signboards.

trimless channel letter coil

The specifications and quality requirements of trimless channel letter coil are usually customized according to the actual application needs. In general, the channel letter aluminum coil needs to meet the following quality requirements:

Dimensional accuracy:

The length, width, thickness and other dimensions of the channel letter aluminum coil need to be consistent with the specified standards or customer needs, and the error range should be controlled within ±0.1mm.

Surface accuracy:

The surface of the channel letter aluminum coil strip should be flat, smooth, no scratches, bumps and uneven defects, in order to meet the requirements of advertising production effect.

Material purity:

Channel letter coil strip should be made of high-purity aluminum alloy material to avoid impurities and color differences and other problems.

Strength and hardness:

Channel letter aluminum coil needs to have a certain strength and hardness to withstand the weight of the billboard and the influence of the external environment.

Corrosion resistance:

The channel letter coil should have good corrosion resistance, can resist oxidation and corrosion in the outdoor environment, and maintain long-term durability.

Comply with safety standards:

Channel letter coil needs to meet the relevant safety standards, such as fire, lightning and other safety requirements, to ensure the safe use of billboards.

In addition to the above quality requirements, the specifications and models of the aluminum coil for channel letter can also be customized according to actual needs. For example, aluminum coil of channel letter of different specifications and shapes can be selected according to the size and shape requirements of the billboard.


When choosing the material of the trimless channel letter coil, it is necessary to choose according to the actual needs to meet the different advertising effects and use requirements. At the same time, attention needs to be paid to quality and safety issues to ensure advertising effectiveness and service life.

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