doris@pj.com.cn (510)3259832
This product is a two-component quick drying primer, which has excellent protection and adhesion to general metal substrates, fast drying speed and easy grinding. It is especially suitable for the bottom protective coating of all kinds of vehicle quick repair and whole vehicle renovation.
Product name: 2K Primer
Product Numbers: BF9930
Standard packaging: 4KG/20KG
Product Features:
This product is a two-component quick drying primer, which has excellent protection and adhesion to general metal substrates, fast drying speed and easy grinding. It is especially suitable for the bottom protective coating of all kinds of vehicle quick repair and whole vehicle renovation.
Complementary products and mix ratio
|
BF9930 2K primer |
4 |
|
BF7750 4:1 2K middle coat /primer curing agent |
1 |
|
BF6610 Thinner |
2±20% |
Instructions:
①Mix thoroughly according to the proportion before use,adjust the construction viscosity to 16-18 seconds/ 4 cups, spray 2 times at 25°C,and the film thickness is 30-45μm.
②Flash drying for 10-15min, baking at 70-80 °C for 30min or 12h, air drying at 25°C.
③The service life of paint after mixing is 6 hours/ 25°C.
Things to note:
①The primer should not be excessively thick each time. Let the layer dry for 5-10 minutes before applying the next layer.
②Use the complementary curing agent and thinner to achieve the desire results.
③The paint layer must be completely dried before sanding, or it may stick to the sandpaper or produce sand marks.
Technical indicators
|
Inspection items |
Technical indicators |
Inspection method |
|
|
Material Status in Containers |
Easy to stir evenly without foreign matter |
GB/T 3186 |
|
|
Fineness, μm |
≤30 |
GB/T 1724 |
|
|
Viscosity, Coated-4 cup,25°C,s |
≥80 |
GB/T 1723 |
|
|
Solids content (120°C, 2h)% |
≥60 |
GB/T 1725 |
|
|
Storage Stability, Grade |
Precipitability ≥ 8 grade and crusting ≥ 10 grade |
GB/T 6753.3 |
|
|
Viscosity, Coated - 4 cup, 25°C, s |
16-18 |
GB/T 1723 |
|
|
Dryness |
Surface trunk , 25°C |
≤20min |
GB/T 1728 |
|
Hard work, 25°C |
≤6h |
||
|
Drying, 70-80°C |
≤30min |
||
|
Hardness, pencil hardness tester |
≥H |
GB/T 6739 |
|
|
Adhesion, Grid method, Grade |
≤1 |
GB/T 9286 |
|
|
Adhesion between layers |
Great |
|
|
|
Flexibility,mm |
1 |
GB/T 1731 |
|
|
Impact strength,cm |
50 |
GB./T 1732 |
|
|
Grindability(20 times) |
Easy sanding, non-stick sandpaper |
GB/T 1770 |
|
|
Waterproof,240h |
Non-foaming, non-wrinkling, non-falling |
GB/T 5209 |
|
|
Nitrogen resistance |
No biting, no bleeding |
GB/T 13493.4.18 |
|
|
Damp heat resistance(120h),Grade |
≤1 |
GB/T 1740 |
|
|
Acid resistance(0.05mol/1 H2SO4),24h |
No foaming, no peeling, slight discoloration allowed |
GB/T 9274 |
|
|
Alkali resistance (0.1 mol/1 Na0H),24h |
No foaming, no peeling, slight discoloration allowed |
GB/T 9274 |
|
|
Salt Spray Resistance Series A (240h), Series B (168h), Grade |
≤1 |
GB/T 1771 |
|
Storage:
The product shelf life is 1 year at 25°C. Expired products can be used if tested, at your own risk.
Automotive Painting Technology: The Combination
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Contact: Miss Doris
Phone: 001-5103259832
Tel: (510)3259832
Email: doris@pj.com.cn
Add: No.18, Duruan North 2nd Road, Jiangmen , Guangdong
