H2SO4 storage tanks · molded in Willis, TexasMon–Fri · 936-228-1520
All sulfuric acid tanks
HDPE, PVDF and polypropylene tanks from 25 to 10,000 gallons, every one rated 1.9 or 2.2 specific gravity for heavy, concentrated acid. Pick a style below to see live sizes, dimensions and prices.
Choose by concentration
The right resin depends on how concentrated your sulfuric acid is. Ratings come from our chemical compatibility database.
HDPE, polypropylene and PVDF tanks all rated Excellent. Every common fitting and gasket works.
HDPE, polypropylene and PVDF all Excellent. Viton® gaskets Excellent; EPDM and Buna-N Good.
PVDF rated Excellent and HDPE rated Good. Polypropylene drops to Fair. Use PVDF fittings and Viton® gaskets.
Above the range of our database. Call us before storing 93–98% acid so we can review your application.
Tank styles
Heavy-duty high-density polyethylene vertical tanks rated 1.9 and 2.2 specific gravity, the most economical way to store sulfuric acid up to 93%.
View tanks →25 – 5,000 gal · 17 sizesPVDF (Kynar®) tanks are rated Excellent for sulfuric acid from 1% to 93%, with the highest temperature and purity performance of any tank resin we mold.
View tanks →25 – 6,000 gal · 25 sizesPolypropylene tanks are rated Excellent for sulfuric acid up to 75% and handle continuous temperatures up to 200°F, a good fit for hot, dilute acid in plating and process lines.
View tanks →Tank styles
A tank inside a tank.
View tanks →100 – 1,000 gal · 6 sizesDouble wall PVDF tanks combine the best chemical resistance for concentrated sulfuric acid with built-in secondary containment.
View tanks →100 – 5,000 gal · 13 sizesDouble wall polypropylene tanks for sulfuric acid up to 75%, with built-in secondary containment and a 200°F continuous use rating.
View tanks →Tank styles
Closed-top HDPE cone bottom tanks drain completely through the bottom outlet, so no acid is left behind when you empty the tank.
View tanks →60 – 1,000 gal · 6 sizesPVDF cone bottom tanks pair complete drainage with Excellent resistance to sulfuric acid at concentrations up to 93%.
View tanks →60 – 2,000 gal · 7 sizesOpen-top HDPE cone bottom tanks for batching, mixing and dilution work, with full access from the top and complete drainage from the bottom.
View tanks →60 – 2,000 gal · 6 sizesOpen-top PVDF cone bottom tanks for batching with concentrated sulfuric acid, rated Excellent up to 93%.
View tanks →Tank styles
Highly concentrated sulfuric acid can freeze in cold weather.
View tanks →325 – 6,025 gal · 10 sizesLow-profile HDPE horizontal tanks rated 1.9 SG for sulfuric acid, for sites with limited overhead clearance and for transfer and day tanks.
View tanks →Our recommendation
A sealed outer tank captures a leak from the inner tank and keeps fumes from spilled acid contained. A containment dike catches liquid but not fumes.
FAQ
It depends on concentration. HDPE is the most economical and is rated Excellent up to 75% and Good to 93%. PVDF (Kynar®) is rated Excellent from 1% to 93%. Polypropylene is rated Excellent up to 75% and handles temperatures to 200°F.
Concentrated sulfuric acid has a specific gravity of about 1.84, so tanks must be rated at least 1.9 SG. We list only 1.9 and 2.2 SG tanks; 2.2 SG adds wall thickness for extra margin.
HDPE vertical and double wall tanks run up to 10,000 gallons, PVDF tanks to 5,000 gallons and polypropylene tanks to 6,000 gallons.
Tanks used for sulfuric acid carry a limited one-year warranty from the date of manufacture; installed fittings carry a one-year warranty.
Yes. We install fittings and gaskets matched to your concentration at our Willis, Texas plant before the tank ships. We do not weld flanges into the sidewall for sulfuric acid service.
Send the acid concentration, temperature, volume and fittings you need. We’ll match the resin, SG rating and gaskets and send a quote.