VCPU-4 is two-component polyurea spray type combination,which is used in a variety of base material protection. 100% solid content, no solvents, no volatile, little or no odor, strictly comply with the VOC limit standard, belongs to the environmentally friendly materials.
Physical Properties
Item | Unit | Polyether Component | Isocyanate Component |
Appearance |
| Viscous Liquid | Viscous Liquid |
Density（20℃) | g/cm3 | 1.03±0.03 | 1.08±0.03 |
Dynamic Viscosity（25℃) | mPa·s | 1800±200 | 800±200 |
Shelf Life | month | 6 | 6 |
Storage Temperature | ℃ | 20-30 | 20-30 |
Proposal of Process
Item | Unit | Value | Test Methods |
Mix Ratio | By Weight | 1:1.1(A:B) |
|
GT | s | 10-15 | GB/T 23446 |
Surface Dry Time | s | 20-40 |
Temperature of Material -Part A -Part B |
℃ ℃ |
70-80 70-80 |
|
Pressure of Material -Part A -Part B |
Bar Bar |
110-120 110-120 |
|
Physical Properties of Finished Product
Item | VCPU-4 | Unit | Test Methods |
Hardness | 80 | Shore A | GB/T 531.1 |
Tensile Strength | ≥10 | MPa | GB/T 16777 |
Elongation at Break | ≥300 | % |
Tear Strength | ≥40 | N/mm | GB/T 529 |
Impervious | 0.4MP, 2h |
| GB/T 16777 |
Bibulous Rate | ≤5 | % | GB/T 23446 |
Solid Content | 100 | % | GB/T 16777 |
Adhesive Strength, Dry Base Material | ≥2 | MPa |
The data provided above are typical value, which are tested by our company. For our company's products, the data included in the law do not have any constraints.
Packaging :Part A 220kg /drum,Part B 250kg/drum
Storage
B component (isocyanate) is moisture sensitive. Unused raw materials should be stored in a sealed drum, avoid moisture intrusion .A component (polyether) should stirwell before use.
Potential Hazards
Part B (isocyanates) stimulate the eye, respiratory and skin through breathing and skin contact ,and possibly sensitization.When contact part B ( isocyanates) , necessary preventive measures should betaken according to material safety date sheet (MSDS) .
Waste Disposal
With reference to the material safety date sheet (MSDS) of the product ,ordeal with it in accordance with local laws and regulations
