NFT 30-019

Introducing NFT 30‑019 – Industrial Physics

NFT 30‑019 is a national standard that defines the cupping test used to assess the flexibility and adhesion of paint and varnish coatings. By deforming a coated metal panel with a hemispherical punch, the method identifies the point at which the coating begins to crack or lose adhesion — a key indicator of coating durability and substrate compatibility.

This test is widely used in industrial coatings, automotive finishing, metal fabrication, and quality‑control laboratories.

What NFT 30‑019 Covers

NFT 30‑019 outlines a controlled procedure for evaluating coating performance under mechanical deformation. Key elements include:

• Applying a uniform coating to a metal substrate
• Clamping the panel securely in a cupping device
• Gradually deforming the panel using a spherical punch
• Observing the coating for:
• Cracking
• Delamination
• Loss of adhesion
• Measuring the depth at which failure occurs
• Reporting results according to the standard’s classification system

The method applies to:

• Industrial coatings
• Decorative paints
• Powder coatings
• Protective and corrosion‑resistant systems

It is especially useful for evaluating coating flexibility and substrate preparation quality.

Why Cupping Testing Matters

Understanding coating flexibility and adhesion is essential for:

• Ensuring durability during bending, forming, or impact
• Preventing cracking and delamination in production
• Supporting coating selection for metal substrates
• Meeting industry and customer specifications
• Optimizing formulation performance

The cupping test is a reliable indicator of how coatings behave under mechanical stress.

NFT 30‑019 Testing Equipment

Automatic Cupping Tester

The Automatic Cupping Tester is a precision instrument designed to perform cupping tests in accordance with NFT 30‑019 and related international standards.

Key benefits:

• Automated deformation control for repeatable, accurate results
• Digital measurement of cupping depth
• High‑precision hemispherical punch
• Suitable for a wide range of coatings and metal substrates
• Supports standards including NFT 30‑019, ISO 1520, and EN 13523‑6

This instrument ensures consistent, standards‑aligned evaluation of coating flexibility and adhesion.

Your Global Test and Measurement Partner for NFT 30‑019

Industrial Physics supports coatings manufacturers, metal finishers, and quality‑control laboratories worldwide with the expertise needed to meet NFT 30‑019 requirements. Whether you’re validating coating flexibility, optimizing formulations, or ensuring consistent production quality, we provide the guidance and solutions to help you achieve dependable, standards‑aligned testing.