Class I — Topical Use
USP Class I certified pad print inks for topical medical and consumer applications. Suitable for product surfaces that contact skin — exam-glove labels, topical drug packaging, consumer-grade medical devices. Class I inks are PLT4G-based, available in six standard colors.
- PLT4G #11 — Yellow
- PLT4G #21 — Red
- PLT4G #30 — Blue
- PLT4G #40 — Green
- PLT4G #60 — White
- PLT4G #65 — Black
About USP Class I certification
USP Class I is the lower of the two pharmacopeial classifications for inks that contact the human body. It covers topical applications — anything the printed surface is meant to touch from the outside.
Typical Class I applications:
- Exam-glove and PPE marking
- Topical drug primary and secondary packaging
- Skin-contact consumer-grade medical devices
- External-use catheter, syringe, and instrument marking
Class VI is the next certification level up — required for any ink that contacts the body internally (implants, indwelling catheters). See the Class VI page.
Need help selecting this ink?
Send us a substrate sample and target color. We will run adhesion testing and confirm the right PLT chemistry.