Pull-off adhesion test

A test in which a metal dolly is glued to a coating or applied layer and pulled off perpendicular to the surface with a calibrated instrument, recording the tensile stress at detachment and the failure mode. Standardised in ISO 4624 and ASTM D4541, it is widely used on site to verify the adhesion of coatings, screeds and liquid-applied membranes.

Also known as: dolly test, pull-off test

Related terms

Cross-hatch adhesion test

A quick coating adhesion test in which a lattice of cuts is scribed through the coating to the substrate, adhesive tape is applied and removed, and the amount of coating detached is rated against a standard scale. It is standardised in ISO 2409 and ASTM D3359 and is best suited to relatively thin coatings.

Testing & standardsCoatings & protectionAerospaceAutomotiveConstructionMarineGreen energyIndustrial

Primer

A preparatory coating applied to a substrate before an adhesive, sealant, coating or waterproofing membrane, improving adhesion by sealing porosity, binding dust or providing a chemically compatible surface. Primer selection depends on both the substrate and the product to be applied over it.

Resins & adhesivesCoatings & protectionRoofing & waterproofingAerospaceAutomotiveConstructionMarineGreen energyIndustrial

Ready to start?

Create an account to browse and specify, or schedule a consultation to talk through your project with one of our specialists.

Schedule a consultation Create an account

Schedule a consultation

Arrange a call with a specialist to discuss your application.

Choose a time

Browse the catalogue

Explore the full range of advanced materials and systems.

View products