HDPE Tanks for Sulfuric Acid Storage

HDPE is widely used for storing sulfuric acid because it hits a sweet spot of chemical resistance, strength, cost, and practicality. Polyethylene—especially HDPE—has very good compatibility with strong acids, including sulfuric acid.

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🧪 Why HDPE Is Chosen for Sulfuric Acid Storage

1. Strong chemical resistance

HDPE resists attack from strong acids and bases. Compatibility charts rate it as very good with sulfuric acid, meaning it doesn’t corrode, soften, or degrade easily. This makes it reliable for long‑term storage.

2. High strength-to-weight ratio

HDPE tanks can handle the heavy weight of sulfuric acid. High Density Polyethylene tanks have excellent load tolerance, particularly in the bottom third of the tank where stress is highest.

3. Cost-effective compared to fluoropolymers

Materials like PVDF or PTFE offer even higher chemical resistance, but they’re far more expensive. HDPE provides a practical balance of performance and affordability for industrial storage.

4. Good impact and abrasion resistance

HDPE is tough. It withstands handling, installation stresses, and minor impacts better than more brittle plastics.

5. Suitable for large tank fabrication

HDPE can be rotationally molded into large, seamless tanks—up to thousands of gallons—making it ideal for bulk acid storage.