VOID Stickers & Warranty Seals: What You Can (and Can't) Do

A broken VOID sticker is good proof that someone opened a product — but by law, it can't be the only reason you deny a warranty claim.

General information, not legal advice — check your own warranty terms with a lawyer.

VOID Stickers & Warranty Seals

Intertronix's VOID Stickers, Tamper Evident Labels & Security Seals tear or leave a visible "VOID" mark the moment a case, cover, or bottle is opened. That makes them a simple way to catch unauthorized tampering, cut down on warranty fraud, and give your service team a clear record of what happened. Stock and custom sizes ship without artwork approval.

Why it matters

Federal law (the Magnuson-Moss Warranty Act) says a company can't require customers to use one specific brand of part or repair service just to keep their warranty valid, unless that part or service is free. The FTC has warned manufacturers more than once that slapping a "warranty void if removed" sticker on a product isn't enough on its own to deny a claim — doing that can be treated as misleading customers.

You can still use a tamper seal. It just can't be your only reason for turning down a claim. It works best paired with warranty wording that says what the seal actually does — flags that something was opened, rather than automatically canceling coverage.

Sources: FTC: Warranty Warnings · Magnuson-Moss Warranty Act, 15 U.S.C. § 2302(c)