Paint Thickness Gauge BLOW Prodig-Tech GL-1S+ FE — Ferrous Substrate Measurement

The BLOW Prodig-Tech GL-1S+ FE — Ferrous Substrate Measurement is an electronic paint thickness gauge designed for non-destructive measurement of coating thickness on ferrous surfaces such as iron and steel. The instrument displays quick numeric readings for paint, lacquer and other protective coatings, enabling measured evaluation of automotive bodywork, corrosion protection layers and quality control processes. Its compact form and straightforward digital readout make it suitable for field inspections and workshop checks where fast, repeatable thickness values are required.

Advantages

This gauge offers rapid, non-destructive measurement of coating thickness on ferrous substrates with an easy-to-read digital display. It is portable and user-friendly, requiring minimal setup and delivering repeatable numeric results useful for inspection, maintenance and pre-purchase evaluation. The device supports efficient spot checks across panels and components, helping identify uneven coverage or previously repaired areas without damaging the coating.

Suitable for

• Automotive bodywork inspection and pre-purchase vehicle checks
• Quality control in paint shops and repair workshops
• Corrosion protection verification on steel structures and components
• Routine maintenance checks where coating thickness must be monitored

When it may not be suitable

This model is intended specifically for measurements on ferrous (iron/steel) substrates and is not designed for accurate thickness readings on non-ferrous metals such as aluminium. It may not provide valid results on highly curved or irregular surfaces without appropriate positioning, and extremely rough or porous coatings can affect measurement accuracy.

Key specifications

• Measurement principle: non-destructive magnetic/eddy-current based sensing for ferrous substrates
• Measurement target: coating thickness on iron and steel surfaces
• Display: digital numeric readout for quick thickness values
• Form factor: compact, handheld design suitable for field use
• Typical applications: paint, lacquer and protective coating thickness checks

How to use

Place the gauge probe flush on the clean, dry surface of the ferrous substrate and wait for the digital display to stabilise showing the coating thickness value. For reliable results, perform multiple measurements across the area of interest and compare readings to identify variations. Avoid measuring on surfaces covered with loose contamination, heavy rust or thick underfill; where necessary clean the measurement point beforehand. Follow any calibration procedure supplied with the instrument prior to first use or after extended storage.

What to consider before purchase

• Confirm that measurements will be taken on ferrous materials (iron/steel) rather than aluminium or other non-ferrous metals
• Assess the typical surface geometry and roughness at measurement points to ensure suitability for a handheld probe
• Check whether calibration accessories or verification standards are required for your quality control process
• Decide if a device with multi-substrate capability is needed for mixed-metal inspections

Usage recommendations

For best accuracy, perform several measurements per panel and record the range of values. Keep the probe perpendicular to the surface and ensure the contact area is clean and free of loose contaminants. Regularly verify calibration against a known thickness standard, especially when used for pre-purchase inspections or formal quality control documentation.