Product classification

Water-based polyurethane two-component intermediate paint
Classification:
Water-Based Paint
E-mail:WZS1973@163.com
【Summary】Low VOCs content, two-component polyurethane water paint.
【Characteristics】Good adhesion in epoxy primer and electrophoresis primer, good adhesion to oil-based topcoat/water-based topcoat, excellent sandability, and excellent water resistance of composite coating.
【Composition】Water-based hydroxy acrylic emulsion resin, modified isocyanate, pigment, auxiliary, deionized water.
【Uses】It is suitable for the intermediate layer paint of various primers, improving the appearance of the topcoat and enhancing the protective performance of the whole coating.
【Raw lacquer performance】
serial number |
project |
index |
Test Method |
1.1 |
Original lacquer condition |
No foreign matter, no hard precipitation |
Visual |
1.2 |
Fineness μm, ≤ |
15 |
GB/T1724-2007 |
1.3 |
Solids content%, ≥ |
50 |
GB/T1725-2007 |
1.4 |
Shelf life, months |
6 |
GB6753.3-1986 |
【Workability】
serial number |
Projects |
index |
2.1 |
Dilution % |
5-10 |
2.2 |
Sag limit μm, ≥ |
40 |
2.3 |
diluent |
Deionized water |
2.4 |
Typical dry film thickness |
15-30μm |
2.5 |
Coating method |
Airless spraying, air spraying, brushing, roller coating |
2.6 |
Spraying environment |
Temperature: 25±2°C, Humidity: 65±5%RH |
2.7 |
Curing conditions |
Naturally dried, 80°C×30min baking curing |
2.8 |
Natural curing time |
≤10℃:≈48h; 10-20℃:≈24h; 20-35℃:≈18h; ≥35℃:≈12h |
【Paint film performance】
serial number |
project |
index |
Test Method |
3.1 |
Paint film appearance |
In line with the standard plate, smooth and particle-free |
Visual |
3.2 |
Pencil hardness (abrasion), ≥ |
HB |
GB/T1728-1989 |
3.3 |
Impact-resistant Kg · cm,≥ |
50 |
GB/T1732-1993 |
3.4 |
Flexibility mm, ≤ |
1 |
GB/T1731-1993 |
3.5 |
Adhesion, grade, ≤ |
1 |
GB/T1720-1989 |
3.6 |
VOCs(g/L),≤ |
240 |
GB/T23985-2009 |
【Construction Instructions】
This product is a two-component coating and is filled in two barrels. When used, it should be mixed according to the prescribed proportion. Once blended, it must be used within the specified use-by time.
(1) After opening the barrel, component A needs to be stirred evenly first, and it is recommended to use a power stirrer to stir.
(2) Mix the curing agent (component B) and the main paint (component A) in the specified proportion, and stir evenly with a mixer.
Varnish-solid ratio: 8:1 (mass ratio) Dilution ratio: 5-20% (clean water)
Activation after mixing:
5℃ |
10℃ |
15℃ |
20℃ |
25℃ |
30℃ |
35℃ |
4h |
4h |
4h |
4h |
3.5h |
3 hours |
2.5h |
【Matching】All kinds of anticorrosive primers, electrophoresis primers, etc.
Coating method: airless spraying, air spraying, brushing, roller coating. Airless spraying or air spraying (with pressure tank) is recommended. One spraying should not be too thick, and the thickness of the wet film should not exceed 120μm. After the recoat interval has dried, the next coat can be applied.
Detergent: alkaline clean water
environment requirements: minimum construction temperature: 5 °C; Maximum application
humidity: 80% R.H
Precautions: Do not allow paint to remain in paint pipes, spray guns or spraying equipment.
Cleaning: Rinse all equipment thoroughly with detergent.
Key words:
Water-Based Paint
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