Audited Supplier
STWD9524 is a one component aromatic polyurea anticorrosion waterproof protective coating, it has excellent adhesive strength with concrete and steel structure. The unique chemical structure makes it has excellent waterproof, anticorrosion effect which can greatly protect the urban overpass bridges from water and chemical medium. It has high strength and high flexibility to avoid concrete structure breakdown from bridge vibration and displacement.
Product features and advantages
*High solids, low VOC emissions
*Easy to apply, brush, roller, air spray or airless spray all suitable.
*High physical properties of wearable, impact resistance and scratch resistance
*Excellent waterproof performance
*Excellent chemical resistance, can withstand certain concentration of acid, alkali, salt, oil, organic solvents etc.
*Excellent adhesion force, fast bonding well on the surface of steel, concrete, wood, fiberglass and other substrates.
*Wide temperature requirements, can be used in environments of -50 ºC ~ 120ºC.
*One component material, easy operation without ratio mixed, reducing labor costs
Typical use
Structural protection of all kinds of urban overpass, viaduct, elevated rail, high speed rail, highway, port and water conservancy dam
Products information
| Item | results |
| Appearance | Color adjustable |
| Specific gravity (g/m³) | 1.2 |
| Viscosity (cps)@20ºC | 420 |
| Solid content (%) | 75 (it may differ with colors) |
| Dry time(hour) | 1-3 |
| Pot life (h) | 1h |
| Theoretical Coverage | 0.30kg/m2 (thickness:200um) |
Physical properties of products
| Item | Test standard | Result |
| Hardness (Shore A) | ASTM D-2240 | 86 |
| Elongation (%) | ASTM D-412 | 380 |
| Tensile strength(Mpa) | ASTM D-412 | 24 |
| Tear strength (kN/m) | ASTM D-624 | 63 |
| Wear resistance (750g/500r)/mg | HG/T 3831-2006 | 8 |
| Adhesive strength (Mpa), metal base | HG/T 3831-2006 | 10 |
| Adhesive strength (Mpa), concrete base | HG/T 3831-2006 | 3.3 |
| Impact resistance(kg.m) | GB/T23446-2009 | 1.0 |
| Density(g/cm³) | GB/T 6750-2007 | 1.1 |
Chemical resistance
| Acid resistance 30% H2SO4 or 10%HCI, 30d | No rust, no bubbles, no peel off |
| Alkali resistance 30% 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, oil, 30d | No rust, no bubbles, no peel off |
| ( For reference: pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requiring detail data.) | |
