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Elcometer Adhesion Testers

What is an adhesion test and why it’s so important

When a coating is applied in the wrong climatic conditions, or to a poorly prepared surface; there is a much greater chance that the coating will blister, delaminate or simply not stick to the substrate:
coating-prep-Elcometer

Three coating adhesion test methods are available:

  • CROSSHATCH TEST

  • PUSH-OFF ADHESION TEST

  • PULL-OFF ADHESION TEST

1. CROSSHATCH TESTERS

such as the Elcometer 107 or 1542, where a cutter with 6 or 11 blades is used to cut two sets of lines at right angles – the resultant debris is removed using either adhesive tape, a brush, or compressed air, and the results determined by the use of tables.Cross-hatch-test-elcometer

1. PUSH-OFF ADHESION TEST

such as the Elcometer 108 and 508, have a pin that goes through the center of a dolly that has been glued to the coated substrate, and pushes it off the coating, with the force recorded – ideal for convex and concave surfaces

Elcometer push-off-test

1. PULL-OFF ADHESION METHOD

where a dolly adheres to the coated substrate, pulled off, and the resultant force recorded.

All pull-off adhesion testers follow the same principle. A properly prepared dolly, or pull stub, is glued to the prepared coating, and, once the glue has fully cured, the dolly is pulled off – perpendicularly (or 90 degrees) from the surface. The resultant tensile pull-off force, together with the dolly diameter, and the conditions of the dolly, are all recorded.

Elcometer offers three different pull-off adhesion testers. The original Elcometer 106, which is a hand-operated mechanical gauge. The hydraulic Elcometer 506, with a separate, low-height actuator and a range of skirts for thick and thin substrates. And finally, the Elcometer 510, which is similar in operation to the Elcometer 506 but, rather than manually, automatically applies the increasing force at a predefined and uniform rate, storing all of the results into memory by the simple press of a button.

From the biggest infrastructure projects to our daily consumer gadgets, most manufactured surfaces feature anti-rust, decorative or other coatings. The smallest imperfection of this protective layer could trigger long-term problems and drive up repair costs. Preventing this damage using Elcometer adhesion testers will protect your investment in the long term.

Quality tests of the coating clearly indicate existing and/or potential damage, help identify weak areas of bondage between surfaces and their coating, or between layers of coating, or the consistency of bonding properties of some surfaces. Testing coated surfaces often is important in order to schedule check-up and repair routines, thus preventing the costly coating damage and its consequences.

Elcometer adhesion tester makes sure that surface readiness and its coating are conforming to specified measurements.

Adhesion testing

Elcometer is a forerunner in surface testing, known for the longevity and ruggedness of its products and the consistency of its performance.

Featuring Elcometer 510 for use on flat or curved substrate application, Elcometer 107 for thin, thick, or tough coatings on all surfaces, and Elcometer 108, ideal for coatings on tanks, pipelines, etc.

New PDF User Manual: Elcometer adhesion tester on concrete

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