The e-coat primer of bicycle frames provides an anti-corrosion base, and water decals are used for brand identification and pattern decoration. The combination of the two is the main bicycle coating process. Taizhou Yufeng Intelligent Equipment Co., Ltd. plans a frame e-coating and water decal line for bicycle manufacturers, from e-coat primer to clear coat, improving finish quality and consistency.

Bicycle frame e-coat primer

Bicycle frames are mostly welded from steel or aluminum tubes. Before e-coating, degreasing, derusting and phosphating are performed. The e-coat film provides a uniform base color and anti-corrosion base for the later clear coat. Frame shapes are complex, and the bath and rack design ensure inner cavity coverage. After e-coating, drying cures the film and controls film uniformity.

Water decal application process

Water decals use water-transfer paper. During application, the decal is soaked, placed, smoothed and dried. The application station controls accurate position without bubbles or wrinkles. After application, a clear coat protects the decal and improves gloss. Decal quality affects appearance consistency, and operations follow standard procedures.

Clear coating and curing

Clear coating uses transparent paint to protect the primer and decal. Clear coat thickness and gloss are controlled according to product standards, and the parts are dried and cured after spraying. The clear coat improves weathering and scratch resistance. After curing, appearance, gloss and adhesion are inspected.

Testing and quality control

Frame coatings undergo film thickness, adhesion, gloss, salt spray and impact tests. The decal area is inspected for position, bubbles and edge quality. Test data is bound to the frame number to form a quality file. Non-conforming products are reworked, and qualified products enter assembly.

Line planning

When planning a bicycle frame e-coating and water decal line, provide the frame material, size, output, colors and pattern requirements. We design the e-coating line, decal station, clear coat line and inspection station, and provide the equipment list and investment estimate.

For a bicycle frame e-coating and water decal line proposal, contact Taizhou Yufeng Intelligent Equipment Co., Ltd. for a professional evaluation.

Bike Frame Finishing Line

Bicycle Frame E-Coating and Water Decal Line