Seawater Desalination Caisson Special Coating
polyurea systems are resistant to seawater and saline fog, have an excellent adherence over metal and concrete and do not allow for the development or anchoring ofmicroorganisms or plants, making them the ideal interior and exterior coating of pipes, filters and deposits in desalination plants.
HS800C desalination caisson special polyurea is a 100% solid content aromatic polyurea elastomer material. It has high anticorrosion and erosion resistance to seawater and with high cathodic disbonding resistance. It has been widely applied in the large-scale desalination engineering projects in America, Australia and domestic China.
2.Features:● Without any thinner, environmental protection;
● Elongation, high flexibility, can adapt to the basic cracks and slight deformation;
● Good aging resistance
● Fast curing, can be sprayed on any surface, slope, vertical surface;
● Convenient construction, spraying a film.
3.Performance:
|
Item |
Part A |
Part B |
|
Appearance |
Pale yellow liquid |
Adjustable color |
|
Specific gravity |
1.08 |
1.02 |
|
Viscosity（cps）@25℃ |
820 |
670 |
|
Solid content （%） |
100 |
100 |
|
Mix ratio (Volume ratio） |
1 |
1 |
|
Gel time（second）@25℃ |
4-6 |
|
|
Tack-Free Time（second） |
15-40 |
|
|
Theoretical Coverage (dft) |
1.05kg/㎡ Film thickness 1mm |
|
Physical properties
|
Item |
Test standard |
Results |
|
Hardness (Shore A) |
ASTM D-2240 |
90 |
|
Elongation at Break（%） |
ASTM D-412 |
460 |
|
Tensile strength（Mpa） |
ASTM D-412 |
18 |
|
Tear strength (kN/m) |
ASTM D-624 |
65 |
|
Impermeability (0.3Mpa/30min) |
HG/T 3831-2006 |
Impermeable |
|
Wear resistance (750g/500r)/mg |
HG/T 3831-2006 |
4.4 |
|
Adhesive strength（Mpa）concrete base |
HG/T 3831-2006 |
3.2 |
|
Adhesive strength（Mpa) steel base |
HG/T 3831-2006 |
11.5 |
|
Density（g/cm³） |
GB/T 6750-2007 |
1.02 |
|
Cathodic disbondment [1.5v,(65±5)℃，48h] |
HG/T 3831-2006 |
≤15mm |
Chemical resistance
|
Acid resistance 10%H₂SO₄ or 10%HCI,30d |
No rust, no bubbles, no peel off |
|
Alkali resistance 10% NaOH, 30d |
No rust, no bubbles, no peel off |
|
Salt resistance 30g/L,30d |
No rust, no bubbles, no peel off |
|
Salt spray resistance, 2000h |
No rust, no bubbles, no peel off |
|
Oil resistance 0# diesel, crude, 30d |
No rust, no bubbles, no peel off |
|
(For reference: the above data is acquired based on GB / T9274-1988 test standard. Pay attention to the influence of ventilation, splash and spillage.Independent immersion testing is recommended if requires other specific data) |
|
4. Applications
Anticorrosion waterproof protection of seawater desalination tanks, offshore wharf and other marine equipment.
5.Package:
Two-component, A component 220KG / 200L barrel, B component 210KG / 200L barrel.
6.Storage/Shelf Life:
Ideal storage condition is 5-35 ℃ in cool and dry place, avoid direct sunlight. / Nine months
