8000Cathodic Acrylic Electrophoretic Lacquer

It is made from Polyurethane (PU) and modified acrylic resin,

Properties:

With high transparency, full degree and special gloss, strong third dimension, the color of base material can be seen.High rigidity, low baking temperature, it will become rigid at 120°C, when temp. rise to 150°C, rigidity can be up to 4-5HGood flowing ability, lacquer film is smooth and lubricious.Good combination and penetration ability, wet film and dry film can be combined fastGood color fastness and corrosion resistance, parts can’t change color even if the temperature is up to 180-190°C.Good electrophoresis uniformity, lacquer film is smooth, film thickness can be up to 10-25 um under 30-150V, high efficiency and low power consumption.Good impact and sweat resistance.Wide-range application. It is used for surface protection of plated metal parts, noble metal decoration parts, lamp, timekeeper, glass, lighter, lock and other hardware of high-grade furnitureMixed with all kinds of color paste to produce various color, such as K gold color, coffee, Gun-color, red, blue, green and so on.

10.  Combined with matt ion to obtain semi-matt effect..

Operation condition:

Item	Index	Value
Electrophoretic lacquer	Solid content	60±2%
	PH	6.5±0.3
	Solubility	Water or alcohol
	Solvent	18+3
Working bath	Solid content	8-10%
	PH	4.0-5.0
	Temp.	25-30°C
	Solvent	2-4%
	Conductance	600±200us/cm
Electrophoresis condition	Voltage	30-150V
	Time	12-60’s
	Standard film thickness	5-30um
Baking condition		120°C X 40min.
		150°C X 30min.
		180°C X 20min

Bath make-up :

Weight ratio à  8000 : deioned water = 1: (5-6)

Add 8000 electrophoretic lacquer into agitation drum, agitate it for 20min first, then add pure deioned water gradually as per ratio 1:1, and agitate for 20min., added deioned water for the second time is twice of one for the first time, agitate it for 12hours continuously.

2.  Add prepared lacquer into electrophoresis tank, then add the balance of deioned water into tank, aging it fully for use

Replenishing process:

Add concentrated electrophoretic lacquer 8000 into agitation drum.Add trinal working solution while agitating evenly.After agitating for 30min., make it aging fully, then add into auxiliary tank for cycle.Try electrophoresis production.

Working bath control:

Item	Standard	Test	Control
Bath temp.	25-30°C	Thermometer	Cooling by cold-water machine or heating pipe
Solid content	10±1%	Refraction instrument	Replenish lacquer liquid or dilute with pure water
Conductance	600±200us	Conductance tester	hyperfiltration
PH	4.0~5.0	PH meter	Ion exchange or hyperfiltration
Film thickness	5~10um	Thickness measuring instrument	Increase solid content or hyperfiltration
Solvent	2~4%	Gas Chromatograph	Add solvent or hyperfiltration
Color	Little difference	Supply required color sample	Add color paste or replenish clear lacquer

Film performance:

Item	Index	Test method
Appearance	Transparent
Film thickness	10~25um
Adhesion strength	≤1
Luster	60
Hardness	≥4
Acetone resistance	100 times scratch back and forth ( Film thickness 10um )	ASTMD 4752
Salt-spray resistance	200~500hrs  (depend on film and pretreatment)	ASTM B117-73

Note

Deioned water for bath make-up must keep conductance below 5us/cmBath temperature must be controlled at 25~30°C ( cold and hot cycle control)Parts must be cleaned fully before entering into tank, in order not to drag acid or alkali into tank.Parts must be dry before being put into baking oven, keep constant temperature for 20-30 min.

Storage:

Electrophoretic lacquer must be kept in cool and dry place. Storage time: 6 months. If over the period of validity, it still can be used if test is ok.

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8000Cathodic Acrylic Electrophoretic Lacquer