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%