Black , fine and smooth Water based top coat with corrosion protection assistant
USD $4 - $5 /Metric Ton
Min.Order:1 Metric Ton
Changzhou Junhe Technology Stock Co.,Ltd
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Black, fine and smooth Water based top coat with corrosion protection assistant
1 General description
The main ingredient is water-base inorganic silica , mixed with corrosion protection assistant.The product cost is
low.
2 Perfomance charcteisic
The coating layer is smooth, weak acid and alkali resistant, can be adjusted to any colour with paint.
3 Main Technical Data
No. |
Item |
Data |
Test method |
1 |
Appearance |
Black,fine and smooth |
Eye-measurement |
2 |
Viscosity S≥ |
50 |
GB/T1723-93 second method |
3 |
PH |
8.0-9.0 |
PH-meter |
4 |
Drying Time 140ºC/min |
30 |
GB/T6751-86 |
5 |
Von-volatile% ≥ |
30 |
GB/T6751-86 |
6 |
Thickness of dry film (micron) |
10-20 |
GB/T1764-79 (89) second method |
7 |
Adhesion(degree)≤ |
1 |
GB/T9286-1998 |
8 |
Bend(mm) |
1 |
GB/T1731-93 |
9 |
Hardness≥ |
1 |
GB/T1731-93 |
10 |
Impact resistance(kg•cm) |
50 |
GB/T1732-93 |
11 |
heat and humidity resistance (h) |
240 |
GB/T1740 70(80) |
4 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.
5 Package,storage and transportaion
Package:50kg/ plastic barrel
Storage: 6 month, More than 6 menstrual tests can be used after passing
Transportation: Follow the regulations of commom goods
6 Process
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