Characteristics and Operating Parameters

 

EPS Solution Number

 

Metal & Alloys that polish in each bath

Specific Gravity (New Solution) at 70° F

 

Temp. Range ° F

Recommended Current Density Range (Amps/ft2)

Metal Removal Rate Per 1500 Amp-Minutes per sq. ft./side

Max% Dissolved Metal (by weight) before Decant is Necessary

Max % Trivalent Chrome level Before a Decant is Necessary

 

 

Sludging Characteristics

1000

Brass, Steel, Copper, Tool Steel, AL., SS

1.7200

130° - 150°

50 – 400

0.0004 Inches

2.5% for Decorative Uses

2.1%

Low Sludging

1200A

AL 3003, 5457, 5557, 6463, 7000 Series, No Die Cast Alloys, Stainless, Copper

1.602

175°

100-200

0.136 Inches

2.5%

None

Low Sludging

1250

4100, 3002, 5457, Wrought AL. Alloys

1.483

160° - 180°

50 – 100

0.001 Inches

2.9%

None

Low Sludging

1300

3003, 4100, 5457 Wrought AL Alloys

1.632

150° - 180°

50 – 100

0.001 Inches

2.8%

None

Low Sludging

1375

Aluminum., 3003, 5457, 6463, 7000 Series, Wrought AL. Alloys, Copper, SS, Monel, 440A & 440C, 416

1.483

140° - 170°

40 – 70

0.001 Inches/ 1500 amp-minutes/sq. ft.

2.5%

None

Low Sludging

1500

Copper Alloys, SS-200, 300, Nickel & Nickel Silver Alloys

1.704

120° - 185°

50 – 400

0.0002 Inches

3 – 4%

None

Moderate Sludging

2000

SS 200, 300 Series, High Nickel, Silver Alloys

1.654

90° - 130°

50 – 200

0.0004 Inches

3.2% Decorative

5.0% Deburring

None

Moderate Sludging

2500

SS 200, 300 Series, High Nickel, Silver Alloys

1.7300

90° - 130°

50 – 200

0.0004 Inches

3.2% Decorative

5.0% Deburring

None

Moderate Sludging

3000

SS 200, 300 Series, (Satin Finish) Copper & Brass

1.5800

90° - 120°

100 – 200

Oxide Removal Only

5%

None

Low Sludging

4000

SS 200, 300, 400, 1700 Series, & High CrO3 Steel

1.7500

150° - 220°

100 – 800

0.0005 Inches

3.2% Decorative

6.0% Deburring (Semi-Bright)

None

Low Sludging

7000

Wrought AL. Alloys (No Die Cast Alloys)

1.7250

140° - 180°

50 – 150

0.0136 Inches

2.5% Decorative & Deburring

2.1%

Low Sludging

9000

SS 200, 300 Series, High Nickel Alloys, Nimonic & Copper Alloys

1.4900

120° - 200°

100 – 400

0.0002 Inches

No Decant is Necessary

None

High Sludging

9500

440A, 440C SS & Similar Steel

1.670

150° - 180°

100 – 400

0.003 Inches

3.2%

None

Low Sludging

Cleaner/Deox 1

SS, Inconel, Copper, Tool Steel, Carbon Steel

1.415

70° - 130°

15 – 30

0.0002 Inches/1500 amps/sq. ft.

2.0% depending on soil

None

Moderate – High Sludging

Cleaner/Deox 2

SS, Inconel, Copper, Tool Steel, Carbon Steel

1.204

70° - 130°

15 – 30

0.0002 Inches/1500 amps/sq. ft.

2.0% depending on soil

None

Moderate – High Sludging