Polyurethane topcoat
Aliphatic polyurethane topcoat, also known as acrylic aliphatic polyurethane topcoat, is composed of aliphatic isocyanate component and acrylic resin, pigment, additives and solvent for hydroxy component two-component self-drying coating. Aliphatic polyurethane finish is used for all kinds of steel structure engineering, transportation vehicles, construction machinery, instruments and equipment and other objects with high surface requirements, especially suitable for outdoor use.
描述
Product selling point
Aliphatic polyurethane topcoat, also known as acrylic aliphatic polyurethane topcoat, is composed of aliphatic isocyanate component and acrylic resin, pigment, additives and solvent for hydroxy component two-component self-drying coating. Aliphatic polyurethane finish is used for all kinds of steel structure engineering, transportation vehicles, construction machinery, instruments and equipment and other objects with high surface requirements, especially suitable for outdoor use.
Physical parameters
| qualification | |
| project | metric |
| pigment | of all kinds |
| dynamic viscosity | (Tu-4) for 70-100s |
| fineness | ≤25μm |
| Theoretical dosage | 130g/m2,40μm |
| drying time | (23 ± 2℃) Table stem: 1h, work for 24h |
| adhesion | Graphics method, level 1 |
| impact strength | 50kg ·cm |
| flexibility | 1mm |
| petrol-resistance | 24h, without falling off, wrinkle, foaming, and allowing slight discoloration |
| hardness | (Strip rod) 0.6 |
| Artificial accelerated aging | 1000h, no obvious cracks, 3 discoloration, 3 light loss |
| salt fog resistance | For 1000h, with no change in the paint film |
Performance characteristics
| High weather resistance | Polyurethane finish paint has high weather resistance, outdoor long-term ultraviolet irradiation, paint film is not pulverized. The paint has been used with other products for 8-10 years, and it is also a common product for outdoor anti-corrosion coating. |
| chemical resistance | The paint has excellent chemical resistance, acid and alkali resistance, acid rain resistance, salt spray resistance, salt water, etc. The paint film can resist atmospheric corrosion and effectively protect the substrate. |
| Strong mechanical performance | Polyurethane finish paint has strong mechanical performance, impact resistance, flexibility, wear resistance to the industry standards, excellent adhesion, paint film does not fall off, lasting protection. |
| Beautiful decoration | The paint has a variety of colors, adjustable tone luster, full paint film, beautiful coating. Outdoor environment long-term use of paint film color protection, do not fade. |
construction technology
The coated metal surface must be completely removed from oil pollution, oxide skin, rust, old coating, etc., can be used by shot blasting or sandblasting method, to reach the Swedish rust removal standard Sa 2.5 grade,
The roughness reaches 30-70 μ m, and the manual rust removal method can also be used to reach the Swedish rust removal standard St 3, and the roughness reaches 30-70 μ m.
Supporting system:
| Polyurethane finish can be applied with a variety of coatings in various industrial environments: 1, steel structure anticorrosion: epoxy zinc rich primer + epoxy cloud iron intermediate paint + aliphatic polyurethane finish; epoxy primer + aliphatic polyurethane finish 2, bridge anticorrosion: epoxy zinc-rich primer + epoxy cloud iron intermediate paint + aliphatic polyurethane finish; inorganic zinc-rich primer + epoxy sealing paint + epoxy cloud iron intermediate paint + aliphatic polyurethane finish |
| 3, engineering machinery coating: epoxy primer + aliphatic polyurethane topcoat |
| 4, building exterior wall decoration: epoxy closed primer + epoxy paint + aliphatic polyurethane finish |
matters need attention
- The curing agent and thinner of aliphatic polyurethane finish are special paint and can not be mixed with other varieties.
- The mixed paint must be used up within 4-6 hours to avoid the paint solidification and cannot be used.· Construction is not suitable in strong wind, rain and snow weather to avoid lacquer disease.
- Construction personnel should take their own safety precautions, such as wearing masks, gloves, etc.
. Store the paint in a cool and ventilated place for 12 months.
Health and Safety
- Please note the warning signs on the packaging container.
- Use it in a well-ventilated environment.
- Do not inhale the paint mist and avoid skin contact.
- Spray paint on the skin immediately with a suitable cleaning agent, soap and water.
- Splash into the eyes to flush with water, and seek immediate medical treatment.
