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The Elcometer 506 Pull Off Adhesion Tester is a lightweight, portable digital adhesion tester that measures the pull-off adhesion of coatings up to 50MPa, on site or in the laboratory. Adhesion is the property that determines whether a protective or decorative coating stays bonded to its substrate; a coating that fails to adhere will blister, flake and expose the substrate to corrosion, so quantifying bond strength is a core acceptance test in coatings inspection.
Operation is by smoothly rotating the gauge's crank handle to apply a uniform force, with results to an accuracy of 1% of full scale and a digital resolution of 0.01MPa. A quick-connect coupling accepts 14.2mm, 20mm and 50mm diameter reusable dollies, allowing adhesion testing on flat, curved, thick and thin substrates including metal, wood, concrete and other fibrous materials. Operating range depends on dolly size for the Elcometer 506 Pull Off Adhesion Tester: 4 to 50MPa with the 14.2mm dolly, 2 to 25MPa with the 20mm, and 0.3 to 4MPa with the 50mm. The actuator is small and ergonomic for single-handed testing in confined spaces, and a magnetic clamp accessory secures the Elcometer 506 Pull Off Adhesion Tester during tests on vertical surfaces.
Sealed, heavy duty and impact resistant to an IP65 equivalent rating, the Elcometer 506 Pull Off Adhesion Tester is 290mm long, weighs 1.8 to 2.0kg, and runs on two AA batteries for around 2000 hours. The Elcometer 506 Pull Off Adhesion Tester can be used in accordance with ASTM D4541, ASTM D7234, AS/NZS 1580.408.5, BS 1881-207, DIN 1048-2, EN 12636, EN 13144, EN 1542, EN 24624, ISO 16276-1, ISO 4624, JIS K 5600-5-7, NF T30-606 and NF T30-062. Supplied by BAMR, South Africa's authorised Elcometer distributor.
Elcometer 506 Pull Off Adhesion Tester
The Elcometer 506 Adhesion Testers are lightweight, portable and easy-to-use adhesion testers available in digital gauges and are suitable for measuring the pull-off adhesion of coatings up to 50MPa either on-site, or in the laboratory.
- Suitable for adhesion testing on metal, wood, concrete and other substrates
- Powerful Rugged and lightweight - ideal for frequent testing. Smooth load application up to 50 MPa.
- Accurate Measurement range is up to 50 MPa with an accuracy of ±1% of full scale.
- Flexible Easy to use hand-held design. Ideal for adhesion tests in the laboratory and the field. 14.2, 20 and 50mm diameter reusable dollies. Measures adhesion on small, curved and flat surfaces.
- Durable Sealed, heavy duty and impact resistant. Dust and waterproof equivalent to IP65. Suitable for use in harsh environments.
When to use the Elcometer 506
Reach for the Elcometer 506 when you need to measure pull-off adhesion of coatings up to 50MPa by hand. The lightweight digital gauge works on metal, wood, concrete and other substrates, on site or in the lab. It suits inspectors who want a portable, manually loaded adhesion test.
- 1Many substrates, one gaugeIt tests adhesion on metal, wood, concrete and other substrates, so a single tester covers mixed inspection work.
- 2Portable and hand-loadedThe lightweight hand-held design with smooth load application up to 50MPa suits frequent testing in the field as well as the lab.
- 3Dollies for awkward surfaces14.2, 20 and 50mm reusable dollies let you measure adhesion on small, curved and flat surfaces, not just open flats.
- 4Sealed for harsh useHeavy duty and impact resistant to an IP65 equivalent rating, it handles dusty, wet sites.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
When to use this
When to use the Elcometer 506
Reach for the Elcometer 506 when you need to measure pull-off adhesion of coatings up to 50MPa by hand. The lightweight digital gauge works on metal, wood, concrete and other substrates, on site or in the lab. It suits inspectors who want a portable, manually loaded adhesion test.
- 1Many substrates, one gaugeIt tests adhesion on metal, wood, concrete and other substrates, so a single tester covers mixed inspection work.
- 2Portable and hand-loadedThe lightweight hand-held design with smooth load application up to 50MPa suits frequent testing in the field as well as the lab.
- 3Dollies for awkward surfaces14.2, 20 and 50mm reusable dollies let you measure adhesion on small, curved and flat surfaces, not just open flats.
- 4Sealed for harsh useHeavy duty and impact resistant to an IP65 equivalent rating, it handles dusty, wet sites.
Lower-budget alternatives
Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
Specifications
Specifications
● = standard ο = optional
| Part Number | Description | Certificate |
|---|---|---|
| F506-20D | Elcometer 506 Digital Adhesion Tester Kit; 20mm | ● |
| F506-20DC | Elcometer 506 Digital Adhesion Tester Kit; 20mm – Certified | ο |
| F506-50D | Elcometer 506 Digital Adhesion Tester Kit; 50mm | ● |
| F506-50DC | Elcometer 506 Digital Adhesion Tester Kit; 50mm – Certified | ο |
| Accuracy | ±1% of full scale | |
| Pressure Rating | 26 MPa |
| 14.2mm Dolly | 20mm Dolly | 50mm Dolly | |
|---|---|---|---|
| Operating Range | 4 to 50 MPa | 2 to 25 MPa | 0.3 to 4 MPa |
| Scale Resolution | |||
| Digital | 0.01 MPa | 0.01 MPa | 0.01 MPa |
| Instrument Length | 290mm | 290mm | 290mm |
| Actuator Height (skirt fitted) | 85mm | 85mm | 110mm |
| Instrument Weight | 1.8kg | 1.8kg | 2.0kg |
| Kit Weight | 4kg | 4kg | 5.2kg |
- Battery Type
- 2 x LR6 (AA) alkaline dry batteries (digital gauge only) Battery Life: 2000 hours
Packing List
Packing List
Standards
Standards
Accessories
Accessories
Dollies
| Dolly Diameter | Part Number |
|---|---|
| 10mm | T5100014AL-10 |
| 14.2mm | T9990014AL-10 |
| 20mm | T9990020AL-10 |
| 50mm | T9990050AL-4 |
| 50mm Stainless Steel | T9990050SS-4 |
Titanium Dolly (Pack of 10)
| Dolly Diameter | Part Number |
|---|---|
| 14.2mm | T9990014T |
| 20mm | T9990020T |
Coated Titanium Dolly (Pack of 10)
| Dolly Diameter | Part Number |
|---|---|
| 14.2mm | T9990014CT |
| 20mm | T9990020CT |
| 50mm | T9990050CT |
Dolly Skirts
| Diameter | Part Number |
|---|---|
| 10mm | T999101420S |
| 14.2mm | T999101420S |
| 20mm | T999101420S |
| 50mm | T9990050S |
| 50mm Stainless Steel | - |
| T99923924 | Elcometer AVU Adhesion Verification Unit |
| T99923924C | Elcometer AVU Adhesion Verification Unit - Certified |
Dolly Cutter
| Diameter | Part Number |
|---|---|
| 10mm | - |
| 14.2mm | T9991420H |
| 20mm | T9991420H |
| 50mm | T9990050H |
| 50mm Stainless Steel | - |
| T99923797 | Magnetic Anchor Clamp - holds actuator securely during tests on vertical surfaces |
| T99912906 | Araldite Standard Two Part Epoxy Adhesive, 2 x 15ml Tubes |
| T99923147 | Dolly Cleaning Heating Tongs - EUR 220V / UK 240V |
Test Method
Test Method
Preventing Adhesive and Cohesive Failures Preparing the surface and dolly
1. Select an appropriate test area which is flat and has sufficient area to attach the adhesion gauge.
2. Abrade the dolly and surface, clean both to remove any dust - minimising the risk of an 'adhesive' failure. Fixing the dolly
3. Mix the adhesive correctly and apply a uniform adhesive film over the entire dolly face.
4. Test Standards require that the dolly is pulled off perpendicularly to the test surface. The dolly must therefore be adhered on to a prepared flat test surface (see images below). Apply an even pressure to the dolly to ensure that the dolly face is parallel to the test surface.
5. Remove any excess adhesive from around the dolly and allow to fully cure. Tape maybe required when applying dollies to vertical surfaces during the cure process.
6. If required, once the dolly has fully cured, score the coating around the dolly using the dolly cutter provided.
7. Attach the gauge actuator to the dolly and begin test. Assessment of the Adhesion Test For a valid pull test the coating must cover at least 50% of the area of the dolly face. If the glue fails and no coating is present on the dolly, or it covers less than 50% of the dolly face area, the pull-test is invalid and should be repeated. When the coating has failed within the layer leaving the same coating on both the dolly and the test panel it is known as a 'cohesive failure'. 'Adhesive failures' occur when either the coating has failed at the interface with another coating (leaving a coating on the dolly and another coating on the substrate), or when the coating has failed at the substrate (leaving the coating on the dolly and the substrate bare). NOTE: If the glue fails at a value above the specification then it can be reported that the adhesion exceeded the specification for this individual test. Coating Adhesion Testing on Concrete
Downloads
Videos
Videos
Frequently asked questions
What is the maximum pull-off force the Elcometer 506 can measure?
The 506 measures pull-off adhesion of coatings up to 50 MPa. Operating range depends on the dolly used: 4 to 50 MPa with a 14.2mm dolly, 2 to 25 MPa with a 20mm dolly, and 0.3 to 4 MPa with a 50mm dolly.
What accuracy and resolution does the digital gauge provide?
Accuracy is plus or minus 1% of full scale. Digital resolution is 0.01 MPa across all dolly sizes.
What power source does the 506 use, and how long does the battery last?
The digital gauge uses two LR6 (AA) alkaline batteries. Battery life is rated at 2000 hours.
Is a certified version of the 506 available?
Yes. Both the 20mm and 50mm kits are available in certified versions (suffix -DC), alongside the standard kits.
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