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DeFelsko — PosiTest® FM Magnetic Pull-Off Thickness Gage
Mechanical Coating Thickness Gage for Non-Magnetic Coatings on Steel SKU: PosiTestFMOverview
The DeFelsko PosiTest® FM is a magnetic pull-off thickness gage designed for the non-destructive measurement of non-magnetic coatings applied over steel substrates. This practical inspection tool is ideal for measuring coatings such as paint, enamel, plastic, galvanizing, metalizing, plating, and other protective or decorative coatings on ferrous materials.
Using a magnetic pull-off measurement method, the PosiTest® FM provides a simple and reliable solution for coating thickness verification without requiring batteries or complex setup. Its mechanical operation makes it especially useful for field inspections, shop work, maintenance programs, and quality control environments where quick coating checks are required.
Compact, durable, and easy to operate, the PosiTest® FM is a dependable choice for inspectors who need a portable coating thickness gage for steel structures, fabricated components, pipelines, tanks, and industrial coating applications.
What's Included
| Item | Details |
|---|---|
| Coating Thickness Gage | DeFelsko PosiTest® FM magnetic pull-off thickness gage |
| Measurement Type | Non-magnetic coatings on steel |
| Measurement Method | Magnetic pull-off |
| Documentation | User manual / operating instructions, if included |
| Carrying Case | Protective storage case, if included |
Box Dimensions & Shipping Weight (Estimated)
| Parameter | Imperial |
|---|---|
| Length | 10.0 in |
| Width | 8.0 in |
| Height | 4.0 in |
| Dimensions (L × W × H) | 10.0 × 8.0 × 4.0 in |
| Weight | 2.0 lb |
Key Specifications
| Parameter | Details |
|---|---|
| Product Type | Magnetic pull-off coating thickness gage |
| Model | PosiTest® FM |
| Measurement Method | Magnetic pull-off |
| Substrate Compatibility | Steel / ferrous substrates |
| Coating Compatibility | Non-magnetic coatings |
| Coating Types | Paint, enamel, plastic, galvanizing, metalizing, plating, and similar coatings |
| Operation | Mechanical / portable |
| Application | Coating thickness measurement |
| Manufacturer | DeFelsko |
| SKU | PosiTestFM |
Performance Features
Magnetic Pull-Off Measurement
Provides reliable non-destructive coating thickness measurement on steel substrates.
Non-Magnetic Coating Support
Designed for paint, enamel, plastic, galvanizing, metalizing, plating, and other non-magnetic coatings.
Mechanical Operation
Simple operation without complex electronics, making it practical for routine field and shop inspections.
Portable Coating Inspection Tool
Compact gage format supports quick coating verification across industrial and maintenance environments.
User-Friendly Design
Simple mechanical operation for fast coating checks
Portable format for field, shop, and maintenance use
No complex setup required for routine measurements
Practical for steel coating inspection workflows
Designed for non-destructive coating thickness verification
Built for Industrial Environments
Durable inspection tool for professional coating applications
Suitable for fabrication, maintenance, and QA/QC programs
Practical for steel structures, tanks, pipelines, and components
Built for repeated use in field and shop environments
Supports industrial coating inspection and corrosion protection programs
Compatibility
Compatible with:
Steel and ferrous substrates
Paint and enamel coatings
Plastic and protective coatings
Galvanizing and metalizing applications
Plating inspection workflows
Industrial coating QA/QC procedures
Corrosion protection inspection programs
Ideal Applications
Coating thickness measurement on steel
Paint and protective coating inspection
Galvanized coating verification
Plating and metalizing inspection
Fabrication quality control
Pipeline, tank, and structural steel inspection
Maintenance and corrosion protection programs
Field and shop coating inspection workflows
About DeFelsko
DeFelsko is a leading manufacturer of inspection instruments for coating thickness, environmental monitoring, surface profile, adhesion testing, hardness testing, and holiday detection. Their instruments are trusted worldwide for accuracy, durability, and ease of use in professional inspection environments.


