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Dolly diameter: 14.2mm/ 20mm/50mm
Operating Range: 4 to 50 MPa/ 2 to 25 MPa / 0.3 to 4 MPa
Instrument Length: 290mm/ 290mm/ 290mm
Actuator Height: 85mm/ 85mm/110mm
Instrument Weight: 1.8kg/ 1.8kg/ 2.0kg
Kit Weight: 4kg/ 4kg/ 5.2kg/
Scale Resolution Analogue: 0.1 MPa; Digital: 0.01 MPa/0.1 MPa; Digital: 0.01 MPa/ 0.05 MPa; Digital: 0.01 MPa
Accuracy: ±1% of full scale
Pressure Rating: 26 MPa
Battery: Type 2 x AA batteries (digital gauge only)
Battery Life: 2000 hours
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How to Prevent Adhesive and Cohesive Failures |
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Correct dolly position |
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Dolly and Actuator
Coating
Substrate |
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Incorrect dolly position |
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Dolly and Actuator
Coating
Substrate |
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Preparing the surface and dolly 1. Select an appropriate test area which is flat and has sufficient test 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 above). 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 is 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. |
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Elcometer 506 Pull-Off Adhesion Tester
Technical Specification
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Part Number |
Description |
Certificate |
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F506-20A |
Elcometer 506 Analogue Adhesion Tester Kit; 20mm |
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F506-20AC |
Elcometer 506 Analogue Adhesion Tester Kit; 20mm - Certified |
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F506-20D |
Elcometer 506 Digital Adhesion Tester Kit; 20mm |
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F506-20DC |
Elcometer 506 Digital Adhesion Tester Kit; 20mm - Certified |
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F506-50A |
Elcometer 506 Analogue Adhesion Tester Kit; 50mm |
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F506-50AC |
Elcometer 506 Analogue Adhesion Tester Kit; 50mm - Certified |
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F506-50D |
Elcometer 506 Digital Adhesion Tester Kit; 50mm |
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F506-50DC |
Elcometer 506 Digital Adhesion Tester Kit; 50mm - Certified |
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Click on the Accessories Tab above for a full list of dollies and accessories. |
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Accuracy |
±1% of full scale |
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Pressure Rating |
26 MPa (3800 psi) |
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14.2mm (0.56”) Dolly |
20mm (0.76”) Dolly |
50mm (1.96”) Dolly |
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Operating Range |
4 to 50 MPa (600 to 7200 psi) |
2 to 25 MPa (300 to 3600 psi) |
0.3 to 4 MPa (50 to 580 psi) |
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Scale Resolution |
Analogue: 0.2 MPa (20 psi) |
Analogue: 0.1 MPa (10 psi) |
Analogue: 0.05 MPa (5 psi) |
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Instrument Length |
290mm (11.5”) |
290mm (11.5”) |
290mm (11.5”) |
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Actuator Height |
85mm (3.4”) |
85mm (3.4”) |
110mm (4.3”) |
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Instrument Weight |
1.8kg (4lb) |
1.8kg (4lb) |
2.0kg (4.4lb) |
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Kit Weight |
4kg (8.8lb) |
4kg (8.8lb) |
5.2kg (11.5lb) |
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Battery Type |
2 x LR6 (AA) alkaline dry batteries (digital gauge only) Battery Life: 2000 hours |
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Packing List: 20mm Kit |
Elcometer 506 Adhesion Tester with 20mm dollies (x10), standard skirt for 20mm dollies, 20mm dolly cutter handle, 20mm dolly cutter, Araldite standard two part epoxy adhesive (2 x 15ml tubes), abrasive pad, carry case, 2 x LR6 (AA) batteries (Digital Gauge only), test certificate and operating instructions. |
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Packing List: 50mm Kit |
Elcometer 506 Adhesion Tester with 50mm dollies (x6), standard skirt for 50mm dollies, 50mm dolly cutter arbor, 50mm dolly cutter, Araldite standard two part epoxy adhesive (2 x 15ml tubes), abrasive pad, carry case, 2 x LR6 (AA) batteries (Digital Gauge only), test certificate and operating instructions. |
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