NO. | items | Standard | Actual standard | Standard of test | ||
1 | adhesion | dry | Cross cut test Class0 | Cross cut test Class0 | GB/T9286-1998 | |
wet | Cross cut test Class0 | Cross cut test Class0 | ||||
Boiling water | Cross cut test Class0 | Cross cut test Class0 | ||||
2 | Pencil hardness | ≥H | 3H | GB/T6739-2006 | ||
3 | Impact resistance | 50kg·cm | No cracks, no depainting | GB/T1732-1993 | ||
4 | Chemical corrosion resistance | Acid resistance | Hydrochloric acid resistance | No change | No change | GB/T23443-2009 |
Nitric acid resistant | No bubbles ΔE≤5.0 | No bubbles ΔE=1.5 | ||||
Mortar resistance | MEK, no base exposed | MEK, no base exposed | ||||
Solvent resistance | No change | No change |