Galvanization technique is worldwidely used to improve the resistance to heavy-corrosion. Hangda's Zinc-based coatings contain high purity Zn and no environmental pollution. Our HDX6000 (for resistance in heavy corrosion) series Zn-based coatings have been proven to much more superior to hot dipped Zn coating.
Performance:
Zn Content in dry coating: up to 96%;
Lifetime in neutral salt spray: more than 6000h;
Electrical Potential: -1.060V;
Used as it is or mixed with various resins (except alkyd).
Fabrication procedure of Zn-based coating :
Coating application: brush painting, roller painting, spraying
Self curing: Touch dry in 1 hour; Cured to overcoat in 48 hours
Examples of application: sand-blasted surfaces, rust-removed surfaces, moist surfaces, hot galvanized surfaces, surfaces of previous HDX6000 Zn-based coating, Steel components in telecommunication, electric powder, highway, railway, bridge, ship, oil industry, chemical plant etc.
Working condition:
Temperature: -15~ 50 ℃ ( 5-122 o F) , Relative humidity: ≤95%
Testing results
Item |
Result |
Tested by |
salt spray |
4000h, no red rust |
Testing Department of Corrosion and Protection of Metals,
Institute of Metal Research, Chinese Academy of Science |
Attachment test (grid) |
Fringe smooth, no delamination, 0 grade |
impact |
Coating intact, eligible in anti-impact |
Surface potential(mV) |
－ 1064 |
－ 1054 |
－ 1070 |
Content of Zn in dry film (%) |
96.25 |
|
Solid content (%) |
83.36 |
Spin viscosity (Pa-s) |
5.3 |
Density (g/ml) |
2.95 |
Contrast test of drawing reinforcing steel bar anchor-hold |
Anchored deepness |
With coating |
Without coating |
Liaoning engineering quality testing centre(CMA) |
404mm |
99.8 |
89.7 |
404mm |
97.6 |
90.4 |
404mm |
88.9 |
89.9 |
434mm |
97.5 |
89.0 |
434mm |
97.8 |
88.1 |
434mm |
97.3 |
97.9 |
Influence on the press resistance of concrete |
Time |
Norm concrete |
|
Liaoning engineering quality testing centre(CMA) |
10d |
42.7 |
41.7 |
Slip resistance coefficient of frictional surface |
Surface treatment |
Slip load |
Slip resistance coefficient |
Liaoning engineering quality testing centre(CMA) |
Sand blast |
157N(KN) |
0.41 |
Sand blast |
173N(KN) |
0.45 |
Sand blast |
185N(KN) |
0.43 |
HDX6000 |
200N(KN) |
0.52 |
HDX6000 |
223N(KN) |
0.58 |
HDX6000 |
211N(KN) |
0.55 |
|
