Closures complete the diffuser system by securing the oil and presenting the brand’s aesthetic. Our portfolio includes natural wooden lids with smooth or ribbed profiles, resin caps molded in custom shapes and colors, anodized or coated aluminum screw caps, and graded corks for a warm, organic look. Inner PE or silicone plugs can be paired to reduce evaporation in transit or during retail display. We verify thread engagement and inner geometry against your bottle neck, assess pull‑off and torque values, and inspect surface finish under controlled lighting to maintain batch‑to‑batch consistency. Decoration options span laser engraving, hot stamping, printed logos and color spraying to coordinate with matte or gradient bottles. Packaging uses protective trays or pouches to prevent scuffs on coated and metallic parts, and cartons are labeled for quick QC spot checks and line feeding.
