We specialize in extending the life of steel tanks with ECTFE (Ethylene Chlorotrifluoroethylene) linings. Sheets are welded inside tanks to create a fully sealed barrier against aggressive media.
ECTFE storage tanks and piping systems are resistant to solutions including NaOH, H₃PO₄, HCl, and C₂H₄O₂. They perform reliably up to 50 °C in standard service and remain stable in applications demanding long-term corrosion protection.
ECTFE for Acid Storage
– Ideal for highly corrosive acids such as 98% sulfuric acid and 79% phosphoric acid.
– Operates at temperatures up to 100 °C.
– Maintains stability across the full pH range (1–14).
– Proven resistance against aggressive agents such as NaOCl, Cl₂, and O₃.
– Smooth surfaces simplify maintenance and cleaning.
Benefits of ECTFE Linings
Resists both acids and bases. Performs at temperatures up to 140 °C. Creates a robust barrier against chemical permeation.
For hard chrome plating and surface treatment, PVDF (Polyvinylidene Fluoride) is the preferred lining.
Advantages of AGRU PVDF:
– High mechanical and thermal strength.
– Excellent chemical resistance.
– Reliable long-term protection at up to 120 °C.
Steel tanks lined with bonded PVDF sheets provide a durable, easy-to-maintain solution for chromic acid applications.
For environments with extreme heat and aggressive chemicals, PFA (Perfluoroalkoxy Alkane) offers unmatched protection.
Key Features:
– Heat resistance up to 260 °C.
– Chemical stability against H₂SO₄, HCl, HF, and other corrosive media.
– Proven in semiconductor production, particularly in NF₃ gas processes, where purity and resistance are critical.
How PFA is Installed
AGRU PFA sheets are mounted using the fix-point lining method, with welded bolts, washers, and sealed caps ensuring a secure, corrosion-proof bond.
Worldwide, acids and bases are transported in large volumes. Traditional stainless steel containers are heavy, costly, and prone to corrosion. A better alternative is fiberglass-reinforced plastic (FRP) containers lined with PE 100, ECTFE, or PFA.
Advantages:
– Up to 1,600 kg lighter than steel → higher load capacity.
– Excellent resistance to aggressive chemicals.
– Faster, easier cleaning → reduced water and cleaning agent usage, lower contamination risk.
These properties make FRP-lined containers ideal for transporting both aggressive chemicals and high-purity media.
For tanks exposed to hydrochloric acid, wastewater, and other corrosive liquids, PP-H (Polypropylene Homopolymer) sheets are a cost-effective lining solution.
– Resistant up to 60 °C.
– Restores and extends the life of older tanks.
– Provides long-term chemical resistance at lower cost.
They protect steel, concrete, and fiberglass tanks, containers, and equipment from aggressive chemicals, extending service life and reducing maintenance costs.
ECTFE offers outstanding resistance to acids, alkalis, and solvents, handles higher temperatures with stability, and has smooth surfaces that simplify cleaning.
ECTFE withstands flue gases containing SO₂ and H₂SO₄, resists chemicals such as NaOH, H₃PO₄, HCl, and acetic acid, and operates reliably up to 100 °C.
PVDF is ideal for chromic acid applications, providing high mechanical strength, excellent chemical resistance, and long-term durability at temperatures up to 120 °C.
PFA is the best choice for extreme heat (up to 260 °C) and highly corrosive chemicals like H₂SO₄, HCl, and HF. It is proven in semiconductor production where purity is critical.
AGRU PFA sheets are mounted using the fix-point method, with welded bolts, washers, and sealed caps to ensure a secure, corrosion-proof bond.
FRP containers lined with PE 100, ECTFE, or PFA are up to 1,600 kg lighter than steel, resist aggressive chemicals, and are easier to clean — lowering contamination risk.
PP-H sheets are a cost-effective option for tanks handling hydrochloric acid, wastewater, and corrosive liquids. They resist up to 60 °C and extend the life of older tanks.
We provide custom-engineered linings in ECTFE, PVDF, PFA, PE, and PP-H, delivering durable, safe, and low-maintenance solutions proven in some of the world’s most aggressive environments.
PVDF lining can be applied for various harsh industrial environments.
ECTFE lining will extend the lifespan of any metal or fiberglass solution.
A PP liner was fitted in a 21,000 Ft³ metal tank to shield it from corrosive wastewater.
FEP lining can be applied in the most aggressive environment exposed to heat.