Cold Sealing Additive
LW-08 Cold Sealing Additive is a light green solid powder which has stable sealing quality as well as the following characteristics:
1. The solution has excellent resistance to impurities.
2. Wider operating range: temperature required to 20-35℃, even at 15℃ can achieve good
sealing effect if extend the sealing time; running water can be used for bath make-up.
3. Easy to operate: The solution is of good buffering capacity to acid and alkali. It’s no need to adjust the PH frequently. And the consumption of F- and Ni2+ keeps good balance.
4. Excellent capacity of anti-sealing bloom.
5. Silver white aluminum profiles can keep color well after sealing.
1. Bath Make-up:
Name | Quantity | Unit |
LW-08 | 2-3 | g/L |
Nickel Acetate | 2-3 | g/L |
Deionized Water | Balance | |
2. Operating Conditions:
Name | Quantity | Unit |
Ni2+ | 0.8-1.2 | g/L |
F- | 0.3-0.45 | g/L |
Temperature | 20-35 | ℃ |
PH | 6-7 | |
3. Solution Maintenance:
1) It is suggested to clean thoroughly the aluminum profiles before sealing process for reducing pollution of the solution. The PH of rinsing bath should not be lower than 4.5.
2) Analyze the concentration of Ni2+ and F- and PH of the solution everyday.
3) Keep the concentration of Ni2+ at 0.8-1.2g/L and the concentration of F- at 0.3-0.45g/L.
4) Control the PH in the range of 6-7. If PH does not meet the technical requirement, it can be adjusted with dilute acetic acid or dilute aqua ammoniae.
4. Packaging and Storage:
Package: Carton (30kg/ carton,25kg/bag)
Storage: Suggested to store in cool, dry and well ventilated place; away from fire and heat source.
