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| CAS No.: | Texture |
| Formula: | Texture |
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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 |
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