Accidental Discharge of Strong Chemicals into Sewer Lines per NACE TM 0174-2022 Procedure B
| TEST | Protecto 401 Results 40 mil Nominal Thickness | 
| 1.Strong Acids | Pass – 50% Sulfuric, 30% Hydrochloric | 
| 2.Strong Base | Pass – 50% Sodium Hydroxide | 
| 3.Strong Solvents | Pass – Gasoline, 111 Trichlorethylene, Methyl Isobutyl Ketone, Propylene Glycol, Toluene, Hi-Sol 15 | 
| 4.Strong Oxidizer | Pass – 50% Hydrogen Peroxide | 





