Product Description

Elcometer 506 Pull Off Adhesion Tester

The Elcometer 506 Pull Off Adhesion Tester is a lightweight, portable and easy-to-use adhesion gauge.  Available in analogue or digital versions, the Elcometer 506 is suitable for measuring the pull-off adhesion of coatings up to 50MPa either on-site, or in the laboratory. The design of the Elcometer 506 ensures that a uniform force can be easily applied throughout the range by smoothly rotating the gauge’s crank handle, ensuring repeatable results to an accuracy of ±1%.

The Elcometer 506 Pull-Off Adhesion Tester’s quick connect coupling allows for the simple attachment of 14.2mm, 20mm or 50mm diameter dollies.  This together with a wide range of accessories, allows coating adhesion testing on flat, curved, thick & thin substrates.  This includes metal, wood, concrete and other fibrous materials.  The Elcometer 506 Pull Off Adhesion Tester test head or actuator has been designed to be small, ergonomic and lightweight – ideal for single handed testing of coating adhesion even in awkward or confined spaces.  Safe testing on vertical surfaces has also been considered. Using the magnetic clamp accessory, the actuator is held securely – preventing accidental damage to the surrounding areas.

Features

Powerful

  • Suitable for use on metal, wood, concrete and other substrates
  • Rugged & lightweight – ideal for frequent testing
  • Smooth load application up to 50MPa

Flexible

  • Easy to use hand-held design
  • Ideal for laboratory and field use
  • 14.2, 20 and 50mm diameter reusable dollies
  • Measures on small, curved and flat surfaces

Accurate

  • Measurement range up to 50MPa with an accuracy of ±1% of full scale

Durable

  • Sealed, heavy duty and impact resistant
  • Dust and waterproof equivalent to IP65
  • Suitable for use in harsh environments

Testing coatings on concrete & low bond strength substrates

When testing coatings on low bond strength substrates such as concrete, wood or other fibrous materials, a larger surface area of dolly is required to improve accuracy, repeatability and reproducability.

The Elcometer 506 Pull Off Concrete Adhesion Tester can be supplied as a kit or with individual 50mm accessory items (skirt, dolly, cutter) which can be added to existing Elcometer 506 gauges.

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 1348
  • EN 1542
  • EN 24624
  • ISO 16276-1
  • ISO 4624
  • NF T30-606
  • NF T30-062

Standards not in bold have been superseded but are still recognised in some industries.

Specifications

Elcometer 506 Pull Off Adhesion Tester – Specifications

Part Number Description
F506-20A Elcometer 506 Analogue Adhesion Tester Kit; 20mm
F506-20AC Elcometer 506 Analogue Adhesion Tester Kit; 20mm – Certified
F506-20D Elcometer 506 Digital Adhesion Tester Kit; 20mm
F506-20DC Elcometer 506 Digital Adhesion Tester Kit; 20mm – Certified
F506-50A Elcometer 506 Analogue Adhesion Tester Kit; 50mm
F506-50AC Elcometer 506 Analogue Adhesion Tester Kit; 50mm – Certified
F506-50D Elcometer 506 Digital Adhesion Tester Kit; 50mm
F506-50DC Elcometer 506 Digital Adhesion Tester Kit; 50mm – Certified
Accuracy ±1% of full scale
Pressure Rating 26 MPa (3800 psi)
Part Number Description
14.2mm Dolly 20mm Dolly 50mm Dolly
Operating Range 4 to 50 Mpa 2 to 25 Mpa 0.3 to 4 Mpa
Scale Resolution Analogue: 0.2 Mpa Analogue: 0.1 Mpa Analogue: 0.05 Mpa
Digital: 0.01 Mpa Digital: 0.01 Mpa Digital:0.1 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

# When using the analogue gauge with 14.2mm dollies, multiply the 20mm dolly scale reading by 2.

Elcometer 506 Pull Off Adhesion Testers Packing List:

20mm Kit  

  • Elcometer 506 Adhesion Tester
  • 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
  • operating instructions

Elcometer 506 Pull Off Adhesion Testers Packing List:

50mm Kit

  • Elcometer 506 Adhesion Tester
  • 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
  • operating instructions

Data Sheet

Elcometer 506 Pull Off Adhesion Tester – Data Sheet

Elcometer 506 Pull Off Adhesion Tester Data Sheet

Standards

Elcometer 506 Pull Off Adhesion Tester – Standards

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 1348
  • EN 1542
  • EN 24624
  • ISO 16276-1
  • ISO 4624
  • NF T30-606
  • NF T30-062

Accessories

Elcometer 506 Pull Off Adhesion Tester – Accessories

Part Number
Dollies
Elcometer 506 Pull Off Adhesion Tester - Dollies The Elcometer 506 is available as a 20mm or 50mm dolly kit. 14.2mm dollies are available to purchase as an optional accessory.
14.2mm: Ideal for testing on small surface areas, for measurements over 25MPa and suitable for use on some curved surfaces.
20mm: Suitable for use on a variety of coatings / substrates.
50mm: Coatings on concrete, cementitious layers and uneven surfaces can be tested more effectively with the larger 50mm dolly.
Description Part Number
Aluminium Dolly 14.2mm (x10) T5060014AL-10
Aluminium Dolly 14.2mm (x100) T5060014AL-100
Aluminium Dolly 20mm (x10) T5060020AL-10
Aluminium Dolly 20mm (x100) T5060020AL-100
Aluminium Dolly 50mm (x4) T5060050AL-4
Dolly Skirts
Elcometer 506 Pull Off Adhesion Tester - Dolly Skirts Standard skirts are available for 14.2mm and 20mm dollies as well as 50mm dollies. Special skirts are also available for testing on thin substrate to even out the load, as using a standard skirt on a thin substrate may cause the substrate to bend or flex during test.
Description Part Number
Standard Skirt for 14.2mm & 20mm Dollies T5061420S
Standard Skirt for 50mm Dollies T5060050S
Thin Substrate Skirt for 14.2mm Dollies T5060014T
Thin Substrate Skirt for 20mm Dollies T5060020T
Dolly Cutters
Elcometer 506 Pull Off Adhesion Tester - Dolly Cutters To isolate the sample area beneath the dolly, the Elcometer 506 has a range of different size dolly cutters with separate handles to allow cutter replacement, an arbor is used for 50mm dollies.
As cutters wear out over time the dolly cutter and handle/arbor are sold as individual items.
Dolly Cutter Handle/Arbor Dolly Cutter
14.2mm T5061420H T5060014CT
20mm T5061420H T5060020CT
50mm T5060050H T5060050CT
Magnetic Anchor Clamp
Elcometer 506 Pull Off Adhesion Tester - Magnetic Anchor Clamp For safe testing on vertical surfaces, the Elcometer 506 Magnetic Clamp securely holds the actuator – preventing accidental damage to the surrounding areas.
Description Part Number
Magnetic Anchor Clamp – holds actuator securely during tests on vertical surfaces T50623797
Adhesive
Elcometer 506 Pull Off Adhesion Tester - Adhesive
Description Part Number
Araldite Standard Two Part Epoxy Adhesive, 2 x 15ml Tubes T99912906

 

Test Method

Elcometer 506 Pull Off Adhesion Tester – Test Method

How to Prevent Adhesive and Cohesive Failures

Correct dolly position

Elcometer 506 Pull Off Adhesion Tester - Correct

Incorrect dolly positionElcometer 506 Pull Off Adhesion Tester - Incorrect

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.

Instruction Manual

Elcometer 506 Pull Off Adhesion Tester – Instruction Manual

Elcometer 506 Pull Off Adhesion Tester Instruction Manual