Since 1992, NDT Seals, Inc. has been a family-owned and operated manufacturer based in Houston, Texas. We design, manufacture, and distribute the patented NDT Inspection Plug, NDT Hot Plug, and NDT Inspection Point Labels used by inspectors, reliability professionals, and industrial distributors worldwide.

Our products support ultrasonic thickness testing (UT), corrosion under insulation (CUI) monitoring, and Thickness Measurement Location (TML) identification for Process Safety Management (PSM) and Mechanical Integrity programs across the refining, petrochemical, chemical processing, power generation, manufacturing, food processing, paper and pulp, and transportation industries.

As an ISO 9001:2015 certified company, we provide durable inspection solutions that help identify and access TMLs on insulated and non-insulated pipe and equipment to monitor structural integrity.

Explore our products, industry standards, regulations, and resources supporting asset integrity and corrosion monitoring programs.