Research Article
Development of Epoxy Based Surface Tolerant Coating Improvised with Zn Dust and MIO on Steel Surfaces
Table 1
STC primer base formulations (mixing ratio (5 : 1 by volume)).
| S.N. | STC1: primer base | STC2: primer base | Primer’s hardener | Ingredients | Wt.% | Ingredients | Wt.% | Ingredients | Wt.% |
| 1 | Epoxy resin | 20% | Epoxy resin | 20% | Modified polyamidoamine adduct | 94.5% |
| 2 | Pigments | | Pigments | | Catalyst: 2,4,6-Tris (dimethyl amino methyl) phenol | 5% | TiO2 | 5% | TiO2 | 5% | Zinc dust | 25% | MIO | 30% |
| 3 | Thixotropic agent | 0.5% | Thixotropic agent | 0.5% | Thixatrol ST antisettling agent | 0.5% | Leveling agent | 0.5% | Leveling agent | 0.5% | Dispersing agent | 1% | Dispersing agent | 1% | 4 | Fillers | | Fillers | | Talc | 5% | Talc | 5% | Calcite | 10% | Calcite | 10% | Silica powder | 10% | Silica powder | 10% | Mica | 10% | | | 5 | Polar solvent | 3% | Polar solvent | 3% | Xylene | 7% | Xylene | 10% | Methyl isobutyl ketone | 3% | Methyl isobutyl ketone | 5% |
|
|