Product Description
STWD9512 is a 100% solids aromatic spray polyurea elastomer. STWD Urethane US Co., work with major research institutions and developed a new heavy duty anticorrosion material for petrochemical industry based on normal polyurea products. The material has been widely used in American regions and received great corrosion protection effect.
Product features and advantages.
*Solvent free, 100% solids, safe, environmentally friendly, odor free.
*Rapid cure, can be sprayed forming on any bent, slope and vertical surfaces without sagging.
*Dense coating seamless, good flexibility.
*High adhesive strength, fast bonding well on steel, concrete, wood, glass fibers and other substrates
*Excellent impact resistance, abrasion resistance
*Excellent corrosion resistance and chemical resistance properties, such as acids, alkalis, salts, etc.
*Excellent waterproof performance
*Good shock absorption performance
*Excellent temperature variation resistance stability
*Fast cure, application site back to service quickly
*Excellent durability to reduce lifelong maintenance cost
*Extend service life of the sprayed structure
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Product Applications
Petrochemical industry tanks, cofferdam, towers, wash tank, pipelines, sewage ponds and other facilities of corrosion protection.
Products information
| Item |
A |
B |
| Appearance |
Pale yellow liquid |
Adjustable color |
| Specific gravity (g/m³) |
1.13 |
1.04 |
| Viscosity(cps)@25ºC |
720 |
570 |
| Solid content (%) |
100 |
100 |
| Mixing ratio(volume ratio) |
1 |
1 |
| Gel time(second)@25ºC |
3-5 |
| Dry time(second) |
10-20 |
| Theoretical Coverage (dft) |
1.08kg/m2 film thickness:1mm |
Physical properties of products
| Items |
ASTM D-2240 |
62 |
| Hardness (Shore D) |
ASTM D-412 |
70 |
| Elongation rate (%) |
ASTM D-412 |
23 |
| Tensile strength (Mpa) |
ASTM D-624 |
70 |
| Tear strength (N/km) |
HG/T 3831-2006 |
Impermeable |
| Impermeability (0.3Mpa/30min) |
HG/T 3831-2006 |
4.5 |
| Wear resistance (750g/500r) /mg |
HG/T 3831-2006 |
3.3 |
| Adhesive strength(Mpa)concrete base |
HG/T 3831-2006 |
12 |
| Adhesive strength(Mpa) steel base |
GB/T 6750-2007 |
1.02 |
| Density(g/cm³) |
HG/T 3831-2006 |
≤15mm |
| Cathodic disbondment [1.5v,(65±5)ºC,48h] |
ASTM D-2240 |
62 |
Physical properties
| 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# d iesel, 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) |
Chemical resistance
| Environment temperature |
0ºC-45ºC |
| Product spray heating temperature |
65ºC-70°C |
| Pipe heating temperature |
55ºC-65ºC |
| Relative humidity |
≤80% |
| Dew point |
≥3ºC |
Audited Supplier 
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