In view of the defects of poor corrosion resistance of galvanized
parts and the lack of acid and alkali resistance of coatings, we
have developed JH-9028 baking type top coatings. It can improve the
anti-corrosion performance of the whole coating, increase the salt
spray time to more than 1000 hours, increase the hardness, acid and
alkali resistance of the surface, and diversify the surface color.
The main ingredient is water-base inorganic silica , mixed with
corrosion protection assistant.The product cost is low.
Technical Data:
| No. | Item | Data |
| 1 | Color | Silver |
| 2 | coating thickness(μ) | First coating≥15 |
| 3 | non-volatile % | 30 |
| 4 | Adhesion≤ | 2 |
| 5 | Flexibility(mm)≤ | 3 |
| 6 | hardness | 0.7 |
| 7 | impact resistance(KG.CM) | 50 |
| 8 | wet and heat(h) | 240 |
Instructions and attention:
Dip coating,Spray coating etc.
It should be stirred fully befor usage; distilled water or
deionized water can be used to adjust viscosity ;Operating
viscosity:30-60s.
When the environment humidity higher than 85%,can add certain
industrial alcohol to adjust viscosity
Curing condition: 80℃/10min+140℃/30min
Cleaning appliance: running water can be used
Avoid acid substances, or polymerization and deterioration will
happen.
This product can be used alone,the coated surface request oil
free,dust free and dry,the better make pre-treatment of
degreasing,derusting,and phosphating.
Processing method:
A 1 base-coat+ 1 Top coat
B 2 base-coat+ 1 Top coat (heavy corrosion protection)
Process Parameter:
Dip Coating Temperature RT
Operateing Viscosity 45-60 S
Centrifuge 210~270 RPM/min 10s X 4-8 times
( Centrifuge device can not be mix used with spin dyrer )
Spray Coating Temperature RT
Operateing Viscosity 30~40 S
Curing: 80℃ 10min + 140℃ 20—30min
Corrosion protection of b process flow
Corrosion resistance: ≥1500h (NSS)
Sea water resistance: 25℃≥1500h
