Fungicidal, Corrosive, and Mutational Effects of Polyhexamethylene Biguanide Combined with 1-Bromo-3-chloro-5,5-dimethylimidazolidine-2,4-dione

Table 3

Metal coupons corrosion of PB.

Metal coupons	R (mm/a, 1x PB)	R (mm/a, 10x PB)
Stainless steel	0.003 ± 0.0023	0.002 ± 0.0050
Aluminum	0.003 ± 0.0026	0.032 ± 0.0104
Copper	0.038 ± 0.0415	0.109 ± 0.0298

Notes. All data are expressed as means ± standard deviation. R < 0.01, almost no corrosion; 0.01 ≤ R < 0.100, mild corrosion; 0.100 ≤ R < 1.00, moderate corrosion; R ≥ 1.00, severe corrosion.