LH - 02 Solid Alkaline Etching Additive

Application and Features：LH-02 solid alkaline etching additive is a white powder. The use of this additive can effectively prevent the scale of the bath solution, and the amount of aluminum dissolved in the bath liquid can reach 120g/L. It can also improve the decorative effect of the aluminum surface and reduce aluminum loss or alkali consumption. The additive is non-toxic and does not contain phosphates.

Bath Preparation
- LH-02：10g/L
- Sodium hydroxide：40g/L
- Water：balance

Process Parameters
- Free sodium hydroxide：40 - 70g/L
- Temperature：40 - 50°
- Time：1 - 15 minutes (depending on surface requirements)

Bath Maintenance
- Analyze the free alkali and aluminum ion content of the bath solution every day. When the bath is newly prepared, control the free alkali to 35 - 40g/L. Then, appropriately increase the sodium hydroxide concentration and bath solution temperature as the aluminum ion concentration increases. The amount of alkaline etching additive added is 1/10 of sodium hydroxide.
- Under normal process conditions, the bath liquid is dark gray-black. If the bath solution appears grayish white, it indicates that the additive alkali concentration is insufficient and should be supplemented in time.
- When the bath solution stops production, it is recommended to keep the temperature at around 40°C or appropriately increase the content of sodium hydroxide and additives, which is beneficial to prevent hydrolysis and precipitation.

Packaging and Storage
- Packaging：Woven bag(25kg/bag).
- Storage suggestions：Store in a cool, dry and well-ventilated warehouse, away from fire and moisture

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4th Floor, Building 1, Xiaobu Industrial Zone, Dali Town, Nanhai District, Foshan City, Guangdong

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Tel:086-757-81792554

Website:www.jin-fei.com
Sales Department: 4th Floor, Building 1, Xiaobu Industrial Zone, Dali Town, Nanhai District, Foshan City, Guangdong
Address: Shishan Julong Industrial Park, Nanhai District, Foshan City, Guangdong

LH - 02 Solid Alkaline Etching Additive

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