PVDF is the tank material for the duties that defeat every other thermoplastic: aggressive concentrated chemistry, high purity service and elevated temperature.
Industrial Plastics fabricates custom PVDF (polyvinylidene fluoride) tanks from certified virgin sheet, welded to DVS 2207 and designed to DVS 2205. PVDF is the premium fluoropolymer of fabricated tank work: specified when concentrated acids, halogens, elevated temperature or purity requirements sit beyond what HDPE and polypropylene can hold. It is engineered, high value work, and it is the kind of fabrication our workshop has done for decades under the same DVS design discipline as every tank we build.
PVDF properties for tank duty
PVDF combines fluoropolymer chemical resistance with the strength and weldability of an engineering thermoplastic. It holds concentrated acids and halogenated media that attack polyolefins, carries service temperatures well past polypropylene, is inherently UV stable, and its low extractables make it the standard for high purity duty. Its one significant chemical weakness is strong alkalis: hot concentrated caustic attacks PVDF, and we will steer that duty to polypropylene or HDPE where it belongs.
| Property | Value | Basis |
|---|---|---|
| Material | PVDF certified virgin sheet | Supplier certificate with every job |
| Density | approx. 1.78 g/cm3 | ISO 1183 |
| Yield strength | approx. 50 MPa | ISO 527 |
| Continuous service temperature | approx. minus 20 to plus 100 degrees C continuous, higher short term, duty specific | DVS 2205 design curves |
| Chemical envelope | Concentrated sulfuric and hydrochloric acid, halogens and halogenated media, oxidising chemistries and high purity service. Not suited to strong alkalis, ketones or amines | SDS review on every quote |
| Purity | Low extractables; suited to high purity and fine chemical duty | Supplier datasheet |
| UV and weathering | Inherently UV resistant, suited to unprotected outdoor service | Supplier datasheet |
| Welding | Welded to DVS 2207 by DVS qualified welders | Weld records issued with every job |
| Design life | Engineered to DVS 2205 creep data at the actual operating temperature | DVS 2205 |
What PVDF tanks are used for
PVDF is specified by duty, not by volume. Mining and mineral processing use it for concentrated sulfuric acid at ambient and cool temperatures, where the same duty would char HDPE and PP in months. Surface treatment and galvanising lines specify PVDF baths for aggressive concentrated acids beyond the HDPE pickling envelope. Process plants use it for hot or concentrated hydrochloric acid duty, oxidising streams and chlorinated chemistry, and fine chemical and laboratory installations specify it where low extractables and purity govern the selection.
Because PVDF duty is always process critical, every selection starts from the SDS, concentration, operating temperature and fill cycle, and you sign off the design output before fabrication starts. Where the correct answer is a cheaper material, or not plastic at all, we say so plainly.
Designed to DVS 2205, welded to DVS 2207
DVS 2205 publishes design data for PVDF alongside PE and PP, so a PVDF tank from our workshop is engineered on the same footing as every other tank we build: wall thickness calculated from the actual chemistry, temperature and service life, welds executed to DVS 2207 by qualified welders, and drawings, weld records and material certificates issued under our ISO 9001:2015 quality system certified by SGS. Given the cost of the material, that engineering discipline is what makes PVDF economical: the tank is sized to the duty, not padded with guesswork.
Sizes, geometry and hybrid construction
PVDF tanks follow the same fabricated scope as the rest of our tank work: rectangular, cylindrical, conical and sloped base geometries, custom nozzle and manway placement, bunded and double walled construction, built around your installation envelope. Because PVDF is a premium material, we also engineer it where it earns its keep: as the wetted construction in smaller high duty vessels, dipping bath liners and compartments within larger installations, keeping the aggressive chemistry in PVDF and the balance of the structure in a suitable polyolefin.
Frequently asked questions
When the duty defeats the polyolefins: concentrated sulfuric or hydrochloric acid, halogens and oxidising media, elevated temperatures towards 100 degrees C, or purity critical service. If HDPE or polypropylene can hold the duty, they are the more economical selection and we will recommend them instead.
Cool, well vented high concentration duty can be engineered in PVDF, with the selection data shown. Hot 98 percent and oleum are carbon steel or alloy duties, and we will say so plainly.
Strong alkalis, ketones and amines attack it. Hot concentrated caustic in particular belongs in polypropylene or HDPE, not PVDF. Material selection is confirmed from your SDS on every quote.
Yes. PVDF is inherently UV resistant and suits unprotected outdoor service.
PVDF is the premium fabricated tank material, so the tank is engineered to keep the material working: wall thickness calculated to DVS 2205 for the actual duty, and hybrid construction where only the wetted surfaces need PVDF. Send the SDS, duty and dimensions through the quote form and an engineer prices the actual vessel.
Industrial Plastics, in our Brisbane workshop, operating since 1971, with welders qualified to DVS 2207 and design to DVS 2205 under an ISO 9001:2015 quality system certified by SGS.
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Send drawings, a sketch, or a description of the duty. An engineer reviews every enquiry and confirms receipt within one business day.