| Type | Result | Examples | Recommended Material |
Strong Alkali >50% | Corrosive | Sodium Hydroxide (80%) | (A) ABS Plastic, Ceramic A1203, Delrin®, PEEK, Teflon®, PTFE, Kalrez (B) 316 Stainless Steel, EPDM, Neoprene, Polyurethane (C) 303 or 304 Stainless Steel, Bronze, Nylon, Hard Coat Aluminum |
Medium Alkali <50% | Slightly Corrosive | Sodium Carbonate | (A) 303, 304 or 316 Stainless Steel, Ceramic A1203, Delrin®, Teflon®, Neoprene, Viton, EPDM (B) Brass, Carbon Steel, Polyurethane |
Mild Alkali <25%
| Slightly Corrosive
| Sodium Bicarbonate, Sodium Hydroxide (20%)
| (A) 303 or 304 Stainless Steel, Delrin®, Ceramic A1203, PEEK, Viton (B) Carbon Steel, EPDM, Neoprene, Polyurethane |
Strong Acid >50% | Corrosive | Phosphoric and Hydroxyacetic Acids
| (A) Delrin®, Kalrez, Buna N, Viton (B) EPDM (C) Aluminum |
Medium Acid <50% | Slightly Corrosive | Chromic Acid (30%)
| (A) Ceramic A1203, PEEK, PTFE, Viton (B) ABS Plastic, 303 or 304 Stainless Steel (up to 120 Deg F), EPDM (C) Polycarbonate, Silicone |
Mild Acid <25% | Slightly Corrosive | Hydrochloric Acid (20%)
| (A) ABS Plastic, PEEK, Viton, PTFE, EPDM, Kalrez (B) Polyurethane (C) Delrin®, Neoprene |
| Solvents | Slightly Corrosive | Mineral Spirits, MEK, Acetone | (A) Delrin®, 303, 304 or 316 Stainless Steel, PTFE, Buna N, Viton (B) Aluminum, Polyurethane (C) Neoprene |
Soaps and Detergents
| Slightly Corrosive | Borax | (A) 303 or 304 Stainless Steel, Hard Coat Aluminum, ABS Plastic, Ceramic A1203, Delrin®, Kalrez, PTFE, Buna N, Viton, EPDM (B) Brass, Anodized Aluminum, Neoprene (C) Aluminum |