Enamel Process
Enamel Process
Die-cast/cast the zinc alloy perfume cap blank
Remove the gate and grind off the burrs.
Sand blowing – sand picking
Purpose: To ensure the enamel glaze adheres firmly, preventing glaze shrinkage and blistering.
Use low-temperature enamel powder (below 130℃ to avoid melting the zinc alloy)
Add AB glue resin in a weight ratio of A:B (3:1) and stir into a paste.
Match colors according to customer’s color code: red, blue, green, black, white, enamel gold, etc.
Use a fine needle, small shovel, or syringe to fill the groove with each color one by one
Avoid overflowing, mixing colors, and missing material
For multi-color patterns, wait for the previous color to be semi-dry before filling the next color
Oven temperature: approximately 110℃
Time: 60 minutes
Enamel melts, solidifies, and develops color
Complex multi-color designs require multiple color fillings → multiple firings
Natural cooling or slow cooling to prevent cracking
Remove overflow and burrs
Check for missing enamel, pinholes, and bubbles; repair enamel and refire
Polished high-gloss finish on protruding metal parts
Electroplating enhances the enamel color and creates a more upscale overall look
Available finishes: Bright chrome, bright gold, matte gold, gunmetal, rose gold
Visual Inspection: Uniform color, no impurities, no broken enamel
Touch: Smooth surface, not scratchy
Test: Proper fit with bottle neck clips
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