Information About Me

• Louis Farkas• Worked for BASF Corporation of 14 years– Electrocoat tech service representative– Plant tech service representative at JNAP

Brief History of Electrocoat

Electrocoat’s “Green” Aspects

• Waterborne paint system• Almost 100% transfer efficiency– Ultrafiltration and Closed Loop process

• 1-3% VOC• Lead free• Reduced to no HAP’s

Electrocoat Formulation

%NV P/B

Resin Emulsion

34 0

Paste 60 2.5

Deionized water

0 0

Constants

Bath Size 2000g

%NV 19

P/B 0.25

Initial Bath ConstantsPhysical Constants

Formulation Steps

• Step 1: calculate gNV of bath– 2000g x 0.19 = 380gNV

• Step 2: calculate gNV of Paste needed– (380gNV/(1.25/.25))*(3.5/2.5) = 106.4gNV

• Step 3: calculate gNV of Resin Emulsion needed– 380gNV-106.4gNV paste = 273.6gNV resin

Formulation Steps

• Step 4: calculate grams of paste and resin to be added– 106.4gNV paste/0.60 = 177.3g paste– 273.6gNV resin/0.34 = 804.7g resin

• Step 5: calculate grams of deionized water to be added– 2000g-(804.7g+177.3g) = 1018.0g