Impact Testers

Impact Tester for Coatings

Impact Resistance Tester

The test enables the detection of cracks, spalling and loss of adhesion

NK Impact Testers by Neurtek are precision instruments designed to assess the resistance of organic and inorganic coatings to free-fall impacts. The test detects the occurrence of cracks, spalling and loss of adhesion, providing information on the flexibility, curing and toughness of the coating under impact conditions.

Designed and manufactured by NK, the equipment is supplied complete with a support base, graduated guide tube, mass clamping and release ring, and an impact mass with a lower support ring, in accordance with the relevant standard. They are available in two ranges — the IT2700 series with a mass diameter of 27 mm and the IT5000 series with a mass diameter of 50 mm — to cover the wide range of current international standards.

Application

  • Industrial and architectural coatings: testing the ductility and adhesion of coatings on steel and aluminium.
  • Galvanising and lacquering: mandatory tests in Qualicoat-accredited processes (ISO 6272-2).
  • Powder coatings: assessment of the flexibility and curing of thermosetting powder coatings.
  • Automotive industry: testing of primers, topcoats and anti-corrosion coatings.
  • Coatings R&D: development and validation of new formulations and application processes.

Features

  • 1,000 mm graduated guide bar
  • Interchangeable impact weights and additional threaded weights to adjust the impact energy.
  • Static ball impact tester available in models IT2700-2 and IT2700-4 for indirect impact testing.
  • Robust, low-maintenance design; manufactured entirely by NK in Spain.
  • Compatible with multiple international standards via conversion kits (see relevant section).
  • Also available in a portable version — please check availability with the sales team.

Standards

ISO 6272-1
ISO 6272-2
ASTM D2794
UNE EN 10209
UNE 135331

References

Code

Standards

NK-IT2700-1

UNE EN ISO 6272-1 DIN 55669

NK-IT2700-2

UNE EN ISO 6272-2 Qualicoat

NK-IT2700-3

ASTM D2794

NK-IT2700-4

UNE EN 10209 (Annex C)

NK-IT5000-1

NK-IT5000-2

UNE 135331

Accessories

Code

Description

NK-IT2700-1-ISO2

IT2700-1 to IT2700-2 conversion kit

NK-IT2700-1-ASTM

IT2700-1 to IT2700-3 conversion kit

NK-IT2700-2-ISO1

IT2700-2 to IT2700-1 conversion kit

NK-IT2700-2-ASTM

IT2700-2 to IT2700-3 conversion kit

NK-IT2700-3-ISO1

IT2700-3 to IT2700-1 conversion kit

NK-IT2700-3-ISO2

IT2700-3 to IT2700-2 conversion kit

Standards

ISO 6272-1
ISO 6272-2
ASTM D2794
UNE EN 10209
UNE 135331

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FAQS

Impact tests enable the identification of defects such as cracking, chipping, coating failure, inter-layer delamination or loss of adhesion caused by sudden mechanical stresses.

No. Direct impact assesses the behaviour of the coating on the impacted face, whilst reverse impact analyses the system’s ability to withstand deformations generated from the opposite side of the substrate.

Impact testers can be used to evaluate liquid paints, enamels, powder coatings, varnishes, primers, multi-layer systems and other protective coatings applied to metallic substrates.

It means that the paint system maintains its mechanical integrity after absorbing a certain amount of impact energy, retaining both its protective properties and its adhesion to the substrate.

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