GB/T 31586.2-2015 "Protective coating systems for corrosion protection of steel structures—Assessment of and acceptance criteria for coating adhesion/cohesion (fracture strength)—Part 2: Cross-cut test and X-cut test" is applicable to the evaluation of adhesion for protective coating systems on steel structures. The test involves using a compliant cross-cut tool to create right-angle grid incisions or a 30–45-degree single-blade cutting tool to make X-shaped incisions, followed by a pull-off test with pressure-sensitive adhesive tape. The resistance grade is determined by observing the degree of coating detachment. The standard specifies the specifications of cutting tools, incision spacing, and evaluation criteria, providing a unified procedure for coating adhesion testing.
| Status | Active | ||
|---|---|---|---|
| CCS | G50 | ICS | 87.040 |
| Release Date | 2015-07-03 00:00:00 | Implementation Date | 2016-02-01 00:00:00 |
