Purpose and application:
The adhezimeter is designed to determine the adhesion of the paint material (hereinafter referred to as the LMC) by the method of lattice cuts in accordance with GOST 31149, ISO 2409, ASTM D3359, as well as to determine the adhesion of the LMC by the X-notch method in accordance with GOST 32702.2 2014, ISO 16276-2, ASTM D3359.
The adhesive is made in the form of a stainless steel template with cuts for notching.
Determination of adhesion by the method of a grid cut:
1. Place the test plate with the applied and dried LMC coating on a hard, flat surface to prevent its deformation during the test.
2. Using the template, make parallel incisions in the coating with a length of at least 20 mm each. Step cuts based on the thickness and type of coverage.
3. Repeat this operation at an angle of 90 °. to the original incisions to obtain a lattice with clearly defined points of intersection.
4. Remove delaminated coating from the notch area using a soft brush or adhesive tape.
5. Examine the test surface in good light and assess adhesion on a point system.
Determination of adhesion by the X-notch method
1. Determination of adhesion by an X-shaped notch is possible for coatings of any thickness and can be carried out in three ways:
- definition of adhesion of a coating on structures;
- determination of adhesion on witness specimens coated at the same time and in the same way as the coating on the structure;
- Determination of coating adhesion in laboratory conditions on test plates, for example, in the development of new coatings.
2. Perform X-shaped incisions with the aid of a template adherent to the surface to be painted with a single-blade cutting tool. Each incision must be at least 40 mm long. The angle of intersection of the notches must be 30 °.
3. At the beginning of a new series of tests with a coil with adhesive tape, remove two full turns of tape. With a uniform speed, unwind and cut a piece about 75 mm long. The center of the cut ribbon should be placed on the center of the X-shaped notch, smooth it along the sharp corners, pressing firmly against the coating, and remove after 5 minutes, holding the free end. Smoothly tear off in 0.5 m 1.0 s at an angle of about 60 °. together with the exfoliated areas of the coating.
4. Examine the test surface in good light and assess adhesion on a point system.
| Technical specifications: |
|---|
| Slots: |
6 slits in 1 mm increments;
6 slits in 2 mm increments;
6 slits in 3 mm increments;
X-shaped slot |
| Slots width, mm: |
0.5 + 0.1 |
| Overall dimensions, mm: |
85 x 60 x 1 |
| Package Contents: |
|---|
| Adhesion-Template: |
1 pcs. |
| Instruction Manual: |
1 copy |
| Packaging: |
1 pcs. |
Application template
