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LW-10 Medium Temperature Sealing Additive (Liquid)

LW-10 is a reddish brown to brown liquid which is for aluminum profiles oxidation film sealing treatment, especially for oxidation film sealing treatment after dyeing.

Bath Make-up:
Name Quantity Unit
LW-10 10 g/L
Nickel Acetate 5 g/L
Deionized Water Balance
Operating Conditions:
Name Quantity Unit
Ni2+ 1.0-1.6 g/L
PH 5.6-6.5
Temperature 60±5
Time 1μm /min
1、Fast sealing speed: for thick oxidation film aluminum profiles (15-20μm), 13-15 mins is enough for sealing.
2、Excellent anti-sealing bloom capacity: LW-10 contains high polymer ash inhibitor, even in high temperature and high PH value is not easy to form bloom.
3、No iridescence and no color fading for black aluminum profiles.
4、Especially suitable for aluminum solar frame products.
Solution Maintenance:
1、Analyze the concentration of Ni2+. Control it in the required range.
2、The heating device is recommended to install on the bath walls but not the bottom, because after long time use there are some water scales on the heating tubes, which will reduce heating effect. It is also difficult to clean the precipitations.
3、If PH drops, should adjust with ammonia water or triethanolamine.
4、Add the nickel acetate and LW-10 with the scale of 1:1.5.
5、The PH of rinsing bath should be strictly controlled to be higher than 4.5.
Packaging and Storage:
Package: Plastic barrel (25kg/barrel)
Storage: Suggested to store in cool, dry and well ventilated place; away from fire and heat source.

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