Phosphate Function Antirust Coating

PHOSPHATE FUNCTION ANTIRUST COATING

Recommendations

NOELSONTM  ZP 409-3, TP-306,  NOELSONTM  Iron oxide pigments etc.

Start formulation

2K Epoxy-zinc phosphate antirust primer:

Part A
Epoxy resin 20 Epoxy equivalent:600-700, Beckopox EP301 (Cytec)
Epoxy resin 1 Epoxy equivalent:180-200, Beckopox EP116 (Cytec)
1-Methoxy-2-propanol 6.2 Solvent
BYK 204 0.5 Wetting agent
methyl isobutyl ketone 1.5 Solvent
Xylene 9 Solvent
Anti-setting agent 5.2 10% Bentone SD-2 in Xylene
F fumed silica 0.4 Rheological agent
Zinc phosphate 6.6 NOELSONTM ZP 409-3
Barium sulfate 18 By NoelsonChem
Talc filler 17  
TiO2 3.6  
Part B
epoxy resin hardener 11 Versamid 115 (Cognis)

Air-dry alkyd antirust primer:

Long-oil alkyd resin 400  
Iron oxide 161 NOELSONTM 130N
Zinc phosphate 80 NOELSONTM ZP 409-3
Talc filler 96  
Barium sulfate 43 By NoelsonChem
ZnO 9 By NoelsonChem
Dispersing agent 2  
High boiling point solvent 20  
Ethanol solvent 191  
Cobalt Dryer, 6% 6  
Plumbum Dryer , 24% 4  
Anti-skinning 2  

400hrs Salt Spray Testing (GB/T 1771-1991):

app-04-01           app-04-02           app-04-03           app-04-04

 

            Control                              6.6% ZP409                         6.6% ZP409-1                            6.6% ZP409-3