The Elcometer 508 Push Off Adhesion Tester (part number F508-DD) is a Type III adhesion gauge that measures the pull-off adhesion of coatings on flat or curved surfaces, both concave and convex. Adhesion testing confirms that a coating is bonded strongly enough to its substrate to survive service; on assets such as tanks and pipelines, where surfaces are rarely flat, the push-off design with curved dolly options lets inspectors test adhesion directly on the real geometry.

A rotating crank handle applies smooth loading from 0 up to 25MPa, with a full-scale accuracy of 1.5% and a digital resolution of 0.01MPa over a 0 to 26MPa scale and 2 to 25MPa operating range. A quick-connect coupling attaches to the dolly, and the pin is pushed through the centre against the substrate to give accurate, repeatable results. The dollies for the Elcometer 508 Push Off Adhesion Tester have a 19.4mm outside diameter, 3.7mm inside diameter and 284mm squared area, and standard, convex and concave reusable stainless steel dollies are available. A backlit digital LCD reads in MPa or psi and a maximum hold feature displays the highest value reached.

Sealed, heavy duty and impact resistant to an IP65 equivalent rating, the Elcometer 508 Push Off Adhesion Tester is hand-held and fully portable at 1.7kg for the gauge (4.5kg as a kit), 290mm long with a 200mm coupling height, powered by two AA batteries. The Elcometer 508 Push Off Adhesion Tester can be used in accordance with ASTM D 4541 (Type III), ISO 16276-1 and NF T30-606. Suited to field adhesion testing in marine, refinery and pipeline coatings inspection, the Elcometer 508 Push Off Adhesion Tester is supplied by BAMR, South Africa's authorised Elcometer distributor.