TQC CC3000 Adjustable Cross Cut Paint Adhesion Tester

Test the adhesion of dry paint on your substrate with the TQC CC3000 Cross Cut Adhesion Test Kit.

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TQC’s CC3000 Cross Cut Adhesion Tester is used to test the adhesion of dry coats of paint to their substrate or to prior layers of coating. Adhesion of coatings to their substrates and prior coating layers is a key component of a quality paint application. Two series of parallel cuts are made cross-angled to each other, creating a cut pattern of 25 or 100 similar squares. After brushing with a stiff brush, or for hard surfaces, pulling the cut area with specified adhesion tape, the cut section of coating is evaluated by visual comparison to a coating adhesion classification chart to determine the quality of adherence of the paint to the surface.

The CC3000 features a wheel-mounted blade-holder that holds the cutting edge at an uniform distance from the coating to ensure reliable, reproducible results. The wheels provide adjustable blade depth to better accommodate soft surfaces.

The TQC CC3000 Adjustable Cross-Cut Paint Adhesion Tester features a single blade set in a cutting head fitted with two wheels that permit adjustment of the cutting depth.  The cutting head attaches to a padded, ergonomically-designed handle. Knife blades are available with 6 or 11 teeth spaced at 1, 2, 3, or 1.5 mm spacing, to accommodate both ISO and ASTM standards for a range of paint thicknesses. The TQC CC3000 Cross-Hatch Cutter is suitable for dry film thickness of up to 250 µm on soft substrates, 125 µm on hard substrates. [1]

[1] ASTM D3359 states “Test Method B is not considered suitable for films thicker than 5 mils (125 µm), but Note 1 states “subject to agreement between the purchaser and seller, Test Method B can be used for thicker films if wider spaced cuts are employed.”

Brand

The TQC CC3000 comes with:

  • Grip with Cutter
  • Illuminated Loupe
  • Brush
  • Allen Key
  • Adhesive Tape (select ISO or ASTM standard)
  • Carrying Case

Spare knives and tape are available.

Available TQC CC3000 Adjustable Cross-Cut Adhesion Testers

Cross-Cut Adhesion Tester with 6-toothed cutter:

SP1680 TQC adjustable adhesion tester CC3000, incl. blade 1mm.
SP1681 TQC adjustable adhesion tester CC3000, incl. blade 2mm.
SP1682 TQC adjustable adhesion tester CC3000, incl. blade 3mm.

Cross-Cut Adhesion Tester with 11-toothed cutter:

SP1683       TQC adjustable adhesion tester CC3000, incl. blade 1mm
SP1684       TQC adjustable adhesion tester CC3000, incl. blade 1.5 mm.

The following is provided as a reference for proper knife selection:

ISO 2409 – Paints and Varnishes — Cross-cut Test – specifies:

1 mm. spacing for coatings up to 60 µm on hard substrates
2 mm. spacing for coatings up to 60 µm on soft substrates
2 mm. spacing for coatings from 61 to 120 µm on both hard and soft substrates
3 mm. spacing for coatings from 121 µm to 250 µm on both hard / soft substrates

ASTM D3359 – Standard Test Methods for Measuring Adhesion by Tape Test – Method B – specifies:

1 mm. spacing x 11 cuts for coatings < 50 µm (2.0 mils)
2 mm. spacing x 6 cuts for coatings from 50 to 125 µm (2.0 – 5 mils)
*For coatings thicker than 5 mils (125 µm) Test Method A is recommended

Cross-Cut Adhesion Test Comparison Chart