Process Principle and Structural Characteristics:Color-plated plastic strips use plastics such as PVC, PP, and ABS as base materials, and their color-plating process consists of three core stages: base material pretreatment, coating preparation, and curing forming. The base material undergoes degreasing, decontamination, and roughening to improve surface adhesion. The coating is a precise mixture of resin matrixes (e.g., epoxy resin, polyurethane), functional colorants (e.g., metal oxide pigments), and additives (antioxidants, leveling agents), applied via processes like vacuum coating, electrostatic spraying, or electrophoretic deposition. Finally, it is cured at 120-180°C (high temperature) or UV-cured to form a uniform coating with a thickness of 5-20μm. This structure ensures the adhesion between the color-plated layer and the base material meets Grade 0 (no peeling in cross-cut test) as per GB/T 9286, with the coating composition uniformity error controlled within ±3%.
Core Performance Indicators and Advantages:In terms of performance, color-plated plastic strips offer multi-dimensional improvements over ordinary plastic strips. For weather resistance, after 500 hours of xenon lamp aging testing (per GB/T 16422.2), the coating’s color difference ΔE is ≤1.5—far better than the ΔE ≥4.0 of ordinary plastic strips—enabling stable use in environments ranging from -20°C to 80°C. In terms of surface performance, the coating has a pencil hardness of 2H-3H, with scratch resistance 2-3 times higher than the base material; its water contact angle is ≥90°, providing good stain resistance. Economically, with the same decorative effect, its cost is only 40%-60% of that of metal color-plated strips, and its density is merely 1/5-1/8 that of metal, reducing energy consumption for subsequent processing and installation.
Scenario Adaptation and Selection Specifications:Different application scenarios have varying performance requirements for color-plated plastic strips: in the industrial equipment field, oil-resistant coatings (no discoloration after 72 hours of engine oil immersion) should be selected for equipment frames and support strips; in home decoration scenarios, matte texture coatings (glossiness ≤20GU) are preferred to avoid visual discomfort caused by strong light reflection; in the electronic equipment field, halogen-free coatings complying with the RoHS standard are required to prevent the release of harmful substances. When selecting, three key indicators—coating adhesion, temperature resistance range, and environmental certification—must be checked simultaneously. During installation, special clamps should be used for fixation to prevent coating peeling due to mechanical stress; for daily maintenance, neutral cleaners with a pH of 6-8 should be used, and sandpaper or strong acid/alkali reagents are strictly prohibited for wiping.
Post time: Sep-12-2025