Description

1. Bath Make-up:

Name	Quantity	Unit
LW-02	7	g/L
Sodium Hydroxide (NaOH)	40	g/L
Water	Balance

2. Operating Conditions:

Name	Quantity	Unit
Temperature	40-65	℃
Time	1-25	min
Free alkali (Sodium Hydroxide)	40-70	g/L

3. Solution Maintenance:

1) Analyze the concentration of free alkali and aluminum ion everyday. It is recommended that the concentration of free alkali in a new make-up bath should be 40g/L. And the alkali concentration and solution temperature are slowly increased according to the increasing of aluminum ion. LW-02 and alkali should be added with the scale of 1/10-1/6.

2) Normally, the color of the solution is dark-gray. It will be light-grey if it lacks of alkali or LW-02, then need to replenish in time.

3) When the etching solution is not being used, may increase the concentration of sodium hydroxide (NaOH) and LW-02 for avoiding precipitations.

4. Packaging and Storage:

Package: Carton (30kg/ carton,25kg/bag)

Storage: Suggested to store in a cool, dry and well ventilated place; away from fire and heat source.