Audited Supplier
STWD9513 polyurea is a 100% solids aromatic spray polyurea elastomer. Due to the frequent traffic of loading and discharge of cargo, the truck container is easily damaged by the heavy impact, collision and wear strength. The normal coatings can decorate the truck bed rather than protect it effectively. The bed liner of a new truck is usually destroyed in less than 1 year after application. Spray polyurethane elastomer innovated a brand new solution for the truck bed liners protection. It has been widely applied in the automotive manufacturing industry in the US with perfect reputation.
Product features and advantages.
*Solvent free, 100% solid content, safe, environmentally friendly, odor free.
*Rapid cure, can be sprayed forming on any bent surface, on slope and vertical spray to be a model, won't make sagging.
*Dense coating seamless, good flexibility, high adhesive strength
*Excellent impact resistance, collide and abrasion resistance
*Excellent corrosion resistance and chemical resistance properties, such as acids, alkalis, salts, etc.
*Good shock absorption performance
*Excellent temperature change stability
*Fast cure, so that the construction area quickly revert
*Excellent durability to reduce maintenance costs for life
*Extend the service life of the coating structure
Product Applications
carriage wearable protection of truck, pickup truck, dump truck
Products information
| Item | A | B |
| Appearance | Pale yellow liquid | Adjustable color |
| Specific gravity (g/m³) | 1.13 | 1.04 |
| Viscosity(cps)@25ºC | 650 | 720 |
| Solid content (%) | 100 | 100 |
| Mixing ratio(volume ratio) | 1 | 1 |
| Gel time(second)@25ºC | 3-5 | |
| Dry time(second) | 10-20 | |
| Theoretical Coverage (dft) | 1.03kg/m2 film thickness:1mm | |
Physical properties of products
| Items | Test standard | Result |
| Hardness (Shore D) | ASTM D-2240 | 50 |
| Elongation rate(%) | ASTM D-412 | 150 |
| Tensile strength(Mpa) | ASTM D-412 | 20 |
| Tear strength (N/km) | ASTM D-624 | 65 |
| 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 | 3.1 |
| Adhesive strength(Mpa) steel base | HG/T 3831-2006 | 11 |
| Density(g/cm³) | GB/T 6750-2007 | 1.02 |
| Cathodic disbondment [1.5v,(65±5)ºC,48h] | HG/T 3831-2006 | ≤15mm |
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# di esel, 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 detail 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 |
Application environment
| Recommend spray machine | GRA CO H-XP3 Polyurea spray equipment |
| Spray gun | Air or machine self-cleaning coatings for spray gun |
| 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 STWD polyurea speical primer please refer to STWD companies' other brochure.
- Always apply STWD 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 STWD spray polyurea series .
Product curing time
| Substrate temperature | Dry | Walking intensity | complete solidify |
| +10ºC | 18s | 45min | 7d |
| +20ºC | 13s | 15min | 6d |
| +30ºC | 10s | 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.
Product health and safety information
For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety related data.
Integrity declaration
STWD guarantee all technical data stated in this sheet are based on laboratory tests. Actual testing methods may vary due to different circumstances. Therefore please test and verify its applicability. STWD does not take any other responsibilities except the product quality and reserve the right of any modifications on the listed data without prior notice.
