Development of Epoxy Based Surface Tolerant Coating Improvised with Zn Dust and MIO on Steel Surfaces

Table 5

Comparative mechanical test results of different kinds of surface tolerant coatings.

	Benchmark 1	Benchmark 2	Benchmark 3	STC1	STC2
Pull off adhesion (Mpa)	5 Mpa	5.4 Mpa	4.9 Mpa	5.4 Mpa	5.2 Mpa
	Adhesion failure	Cohesive failure	Adhesion failure	Cohesive failure	Cohesive failure
Impact energy, load: 4.730 kg,; max height: 23′′	23.18 J	26.88 J	18.54 J	26.88 J	26.88 J
Scratch resistance	10 Kg: passed	10 Kg: passed	10 Kg: passed	10 Kg:  passed	10 Kg:  passed
Flexibility	140°: passed	140°: passed	140°: passed	140 ° :  passed	140 ° :  passed
Tensile strength	8.46 Mpa	5.76 MPA	5.07 MPa	10.37 MPa	10.58 MPa
Taber abrasion results by weight loss (gm)	0.1277	0.0945	0.2080	0.0981	0.1073
Contact angle	55.34	52.34	62.24	74.74	67.20