DIMONDS® C1900 Pure Polyurea Spray Coating
Introduction
DIMONDS® C1900 is a two component sprayable polyurea elastomer. This material can be used in a variety of substrates protection at ambient temperature. The system is designed for use through 1:1 spray equipment. It’s 100% solid content, no solvents, no volatile, little or no odor, strictly comply with the VOC limit standard, belongs to environmentally friendly materials.
Physical Properties
| Item | Unit | Component A | Component B |
| Appearance | By visual | viscous liquid | viscous liquid |
| Specific gravity (20℃) | g/cm3 | 1.02±0.03 | 1.08±0.03 |
| Viscosity (25℃) | mPa·s | 650±100 | 800±200 |
| Shelf life | months | 6 | 6 |
Proposal of process
| Item | Unit | Specification | Test Methods |
| Mix ratio | By volume | 1:1 (A:B) | / |
| Gel Time | s | ≤45 | GB/T 23446-2009 |
| Surface dry time | s | ≤120 | GB/T 23446-2009 |
| Temperature of material
-Part A -Part B |
℃ ℃ |
65-70 65-70 |
/ |
| Pressure of material
-Part A -Part B |
PSI PSI |
2500 2500 |
/ |
Technical Indicators
| Item | Unit | Specification | Test Methods |
| Solid content | % | ≥98 | GB/T 16777 |
| Hardness | Shore A | ≥80 | GB/T 531.1-2008 |
| Tensile strength | MPa | ≥16 | GB/T 16777-2008 |
| Elongation at break | % | ≥450 | GB/T 16777-2008 |
| Tear strength | kN/mm | ≥50 | GB/T 529-2008 |
| Impermeability | / | 0.4MP, 2h, impervious | GB/T 16777-2008 |
| Low temperature bending | ℃ | ≤-40 | GB/T 16777-2008 |
| Bonding strength | MPa | ≥2.5 | GB/T 16777-2008 |
| Water absorption | % | ≤5.0 | GB/T 23446-2009 |
| Abrasion resistance | (750g/500r)mg | ≤30 | GB/T 1768-2006 |
| Impact strength | kg·m | ≥1.0 | GB/T 20624.2-2006 |
Packaging
210kg /drum for A and 220kg/drum for B.
Storage
Storage ambient temperature: 5 – 35 °C.
The shelf life of the product starts from the date of production and is guaranteed to be in an unopened state.
Make sure the product packaging is sealed.
Store in a cool, ventilated environment, avoid direct sunlight.
