Can UHPC Shaped Elements Achieve Gradient Colors? Process Analysis and Durability Assurance

UHPC shapes can fully achieve natural and smooth color gradient effects. Through four major processes—integrated coloring, surface coating, mold zoning coloring, and digital printing—single-color gradients, multi-color gradients, and texture gradients can all be achieved. With inorganic pigments and precise craftsmanship, Qinglong keeps the fading rate of gradient effects at ≤5% over 10 years, delivering lasting, vibrant results for projects such as Nanning Fengjingwan and Sanya Festival Plaza.

I. Core Processes for Achieving Gradient Effects

The four major processes suit different gradient requirements. Integrated coloring: inorganic mineral pigments are added zone by zone according to design proportions during production, and the slurry blends naturally to achieve gradients; Qinglong's pigment dosage is 3%-8%, with seamless gradient transitions. Surface coating: after UHPC forming, fluorocarbon gradient paint is sprayed in layers with a spray gun, achieving gradients by controlling coating thickness (50-80μm); Qinglong's spraying precision reaches ±2mm, with uniform color transitions. Mold zoning coloring: pigments are pre-coated in gradient zones within the mold and bond tightly with the UHPC substrate after casting, suitable for dual texture + color gradients; Qinglong's mold zoning precision is ±5mm. Digital printing: complex gradient patterns use UV digital printing technology with precision up to 150dpi; Qinglong's digital printing gradient fidelity is 98%, suitable for artistic shapes.

II. Durability Assurance Technologies for Gradient Effects

Multi-dimensional technologies ensure long-term aesthetics. Pigment selection: UV-resistant, acid- and alkali-resistant inorganic mineral pigments (iron oxides, titanium dioxide) are used; Qinglong's pigments have a weather resistance rating of ≥25 years with no fading risk. Coating protection: fluorocarbon varnish (fluorine content ≥25%) is sprayed on the surface to enhance anti-aging capability; Qinglong's protective layer withstands 1000 hours of UV aging without cracking. Material compatibility: pigments/coatings undergo compatibility testing with the UHPC substrate to prevent blistering and peeling; Qinglong's compatibility test pass rate is 100%. Production control: high-pressure vibration (pressure ≥0.6MPa) ensures even pigment distribution; Qinglong's gradient color uniformity improves by 30% after vibration.

III. Qinglong Project Practice and Technical Advantages

Real-world cases verify both effects and durability. Nanning Fengjingwan French Neoclassical UHPC moldings: integrated coloring achieves an off-white to light-yellow gradient, with only 3% fading after 10 years of use; Sanya Festival Plaza UHPC decorative components: surface coating achieves a red-to-orange gradient, with no obvious fading after 8 years in the high-UV coastal environment; Shanghai Astronomy Museum public art sculpture: mold zoning coloring achieves a blue-to-white gradient + starry sky texture, with gradient and texture perfectly integrated; Qinglong's advantages: any gradient effect can be customized, with 1:1 sample confirmation provided and gradient fidelity ≥95%; quality commitment: gradient colors are warranted for 10-15 years, with free repair or replacement if the fading rate exceeds the standard; technical support: Qinglong participated in formulating the "Technical Specification for UHPC Colored Decoration" and holds 4 patents related to gradient processes.