Product descriptions SWD9001 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.
Product Applications
Anticorrosion waterproof protection of seawater desalination tanks, offshore wharf and other marine equipment. It has high chemical resistance, anticorrosion waterproof and sea water resistance, to extend the service life for over 30 years.
Product information
| Item |
A |
B |
| Appearance |
Pale yellow liquid |
Adjustable color |
| Specific gravity (g/m³) |
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 |
| Surface dry 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 rate（%） |
ASTM D-412 |
450 |
| Tensile strength（Mpa） |
ASTM D-412 |
20 |
| Tear strength (kN/m) |
ASTM D-624 |
72 |
| Impermeability (0.3Mpa/30min) |
HG/T 3831-2006 |
Impermeable |
| Wear resistance (750g/500r)/mg |
HG/T 3831-2006 |
4.5 |
| 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 |
Application guide
| Recommend spray machine |
GRACO H-XP3 Polyurea spray equipment |
| Spray gun |
Fusion-air purge or mechanical purge |
| Static pressure |
2300-2500psi |
| Dynamic pressure |
2000-2200psi |
| Recommend film thickness |
1000-3000μm |
| Recoating interval |
≤6h |
Application note
Agitate part B uniform prior to application, thoroughly mix the deposited pigments, or the product’ quality will be affected.
spray polyurea within the proper time if the substrate surface is primed. For the application method and interval time of SWD polyurea speical primer please refer to SWD companies’ other brochure.
Always apply SWD spray polyurea on a small area before large application to check the mix ratio, color and spray effect are correct. For detailed information of application please refer to the latest instruction sheet of the application instructions of SWD spray polyurea series .
Product curing time
| Substrate temperature |
Dry |
Walking intensity |
complete solidify |
| +10℃ |
28s |
45min |
7d |
| +20℃ |
20s |
15min |
6d |
| +30℃ |
17s |
5min |
5d |
Note: the curing time varies with the environment condition especially the temperature and relative humidity.
Shelf Life
* From the manufacturer date and on the original package sealed condition:
Part A: 10 months
Part B: 10 months
*storage temperature：+5-35°C
Packing: Part A 210kg/drum, part B 200kg/drum
Make sure the product package sealed well.
* store in cool and ventilated place, avoid direct sunshine exposure.
