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Metal finishing

Sulfuric Acid Tanks for Metal Finishing

Tanks for sulfuric acid pickling, cleaning, anodizing and electroplating lines, from dilute baths to bulk concentrated feed.

1.9 & 2.2 SG tanksHDPE, PP & PVDFViton® gaskets

Choose by concentration

Typical Acid Strengths in Metal Finishing

HDPE, polypropylene and PVDF each handle sulfuric acid differently. See the compatibility chart for every rating.

1–10%

Dilute acid

HDPE, polypropylene and PVDF all rated Excellent. Every common fitting and gasket works.

10–75%

Mid-strength acid

HDPE, polypropylene and PVDF all rated Excellent. Viton® gaskets Excellent; EPDM and Buna-N Good.

75–93%

Concentrated acid

PVDF rated Excellent and HDPE rated Good. Polypropylene drops to Fair. Use PVDF fittings and Viton® gaskets.

What to consider

Getting the Right Tank the First Time

Send the acid concentration, temperature, volume and fittings you need. We’ll match the resin, SG rating and gaskets.

  • Hot baths: polypropylene is rated Excellent for sulfuric acid from 1% to 75% and handles higher temperatures than HDPE.
  • Concentrated feed acid: above 75%, polypropylene drops to Fair. Store concentrated acid in PVDF or HDPE.
  • Fittings: bulkheads and bolted flanges; no welded sidewall flanges in acid service.
  • Other plating chemicals: see our PVDF plating tanks for chromic and nitric acid.

Tell Us Your Concentration

Send the acid concentration, temperature, volume and fittings you need. We’ll match the resin, SG rating and gaskets and send a quote.