Audited Supplier
Spray polyurea is a solvent free, pollution free green product, it has been applied on many major projects of anticorrosion waterproof protection field since its high physical and corrosion resistance property. But in normal conditions, spray polyurea must be applied with special machine which requires two hundred thousand RMB, and has high demand on the applicators ability, therefore it causes some inconvenience for the polyurea application. STWD Urethane USA developed a new simple-applied cold polyurea, it is a revolutionary product in polyurea industry that updated people's understanding of polyurea technology, which created opportunity for the wider application scopes of spray polyurea.
Characteristics Cold polyurea is applied with a simple spray gun, easy to apply, one person can operate it. It can be directly sprayed in the temperature above 25ºC, use a microwave to heat the liquid material to 35ºC if the environment temperature below 25ºC. The curing time is adjustable from 2-10 min, can be sprayed forming on any curve, vertical or slope surface, without sagging. The coating is flexible, compact and seamless, with excellent comprehensive physical properties, no powdery, no peel off or crack after long term outdoor use, it is resistant to any cold & hot impact and weather changing corrosion.
Specifications
Adhesive strength (concrete base) ≥2.9Mpa( or substrate broken)
Adhesive strength (steel base) ≥8.5Mpa
Tear strength ≥70kg•cm
Tensile strength ≥15.0Mpa
Elongation ≥400%
Penetration resistance 2.1Mpa
Temperature variation resistance -50------+120ºC
Wear resistance (750g/500r) ≤10mg
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 1000h no rust no bubbles no peel off
Oil resistance 0# die sel oil 30d no rust no bubbles no peel off
Data of performance
Color Multiple colors as customers' need
Luster glazed
Density 1.01g/cm3
Volume solid content ≥98%
VOC 0
Recommended dry film thickness 500-3000μm
Theoretical coverage 1.02kg/sqm (calculated by the above solids percentage and dry film thickness of 1000 microns)
Practical coverage Allow appropriate loss rate
Surface dry time 3-5min
Re-coating interval ≤ 6h (20ºC)
Re-coating method two component air sprayer
Mix ratio A:B=1:1 (by volume)
Normal package 1.6kg/set (part A: 0.82kg, part B: 0.77kg)
Application temperature 25-40ºC (use a microwave to heat the material to 35ºC when apply in cold weather)
Flash point 200ºC
Recommend procedures
| No. | Name of products | Layers | Dry film thickness(μm) |
| 1 | STWD polyurea special primer | 1 | 35 |
| 2 | STWD562 cold polyurea elastomer | 1 | 2000 |
| Total | 2 | 2050 |
Application scopes Pickup truck, various car's chassis armor, vibrating disk, lining of mixers, anticorrosion abrasion resistance of impeller and pump casings, surface protection of EPS sculptures, film props, repair of sprayed polyurea.
Shelf life 10 months (Indoor with dry and cool conditions)
Packing 1.6kg/set (part A: 0.82kg, part B: 0.77kg)
Production places Minhang Shanghai City, and Nantong coastal industrial park production base in Jiangsu (15% of the raw materials imported from STWD US, 40% from multinational company in Shanghai, 45% from local support)
Security To apply this product must be accordance with the relevant national regulation of sanitation, safety and environment protection. Do not even contact the surface of wet coating.
Global applicability Our company aims to provide worldwide customers with standard coating products, however custom adjustments can be made to adapt and leverage different regional conditions and international norms. In this case, additional alternative product data will be provided.
Integrity declaration Our company guarantees the reality of the listed data. Due to the diversity and variability of the application environment, please test and verify it before use. We don't take any other responsibilities except the coating quality self and reserve the right of modifying the listed data without prior notice.
