The Rainbow TamperGuard® Tamper Evident Security Label is a ready-to-deploy stock tamper seal requiring no custom print setup, lead time, or minimum order for artwork. Apply directly to your product, packaging, or asset for immediate non-residue tamper-evident protection. Available in a 5,000-label high-volume supply, this Rainbow standard circle (0.75" / 19mm) format is designed for high-frequency production lines, multi-site operations, and large-scale security sealing programs.

The holographic rainbow finish produces a dynamic color-shifting iridescent effect that varies under different viewing angles — simultaneously serving as a premium visual authentication feature and a tamper-evident seal. The rainbow holographic effect is virtually impossible to replicate with standard printing, making these labels both visually striking and inherently anti-counterfeit. The 0.75" (19mm) standard circle is the most versatile TamperGuard® circular format, fitting cleanly on bottle caps, vial tops, electronics ports, device covers, and compact packaging closures without overhang.

TamperGuard®'s defining advantage over standard tamper-evident labels is its non-residue adhesive system: when the label is removed or tampered with, the void pattern activates visibly on the label itself without leaving adhesive residue or ghost marks on the underlying surface. This makes TamperGuard® ideal for sensitive substrates, reusable equipment, high-gloss packaging, and any application where surface integrity must be maintained after a label is assessed or removed.

The blank face is available for hand-marking post-application or use as a clean tamper indicator. For branded print content including logos, sequential numbers, barcodes, or QR codes, see the Custom Print (CTG) version. For a pre-printed "Warranty Void" message, see the Warranty Void (GTG) version.

• Color: Rainbow
• Size: 0.75" (19mm) — standard circle
• Shape: Round/Circle
• Quantity: 5,000 labels — high-volume supply
• Print: Stock (Blank)
• Tamper mechanism: Void pattern on label — no residue left on surface
• Applications: Luxury goods authentication, branded product security, high-value electronics, collectibles, and applications where holographic visual authentication reinforces physical tamper evidence

Stock TamperGuard® labels ship from available inventory — no artwork approval, no print lead time. TamperGuard® Rainbow 0.75" standard circle tamper evident stickers — non-residue security seals engineered to protect surfaces and products without compromise.