nitric.htm

Prolite Plastics recently terminated its activities in the corrosion industry. In order to better serve your needs, AC Plastiques Canada Inc. has acquired the rights to the former Prolite Plastics website, e-mail addresses, and part of their inventory and equipment. Any inquiries to their former email addresses are now automatically redirected to our attention. Please click here to be redirected to our website where you will get more insight into our company. We look forward to serving you in a near future!

PROLITE PLASTICS LTD.
NITRIC ACID STORAGE TANK FOR MICROELECTRONICS

Description:	10'-0" x 16'-0" high Nitric Acid Storage Tank
Contents:	High Purity Nitric Acid
Corrosion Liner:	2.3mm FEP fabric backed sheet
Structural Resin:	Dow Derakane 411 vinyl ester resin
Construction:	3/8" thk. filament wound shell 3/8" thk. hand lay up top and bottom

Microelectronics Giant Mitsubishi Sees Value in Dual Laminate Tank Storage

When Siltec Silicon in Salem, Oregon needed long service life for the storage of their Microelectronic Grade Nitric Acid, Prolite was there to design and fabricate their 10 ft. diameter x 16 ft. domed top vessel in FEP/FRP.

The FEP liner was chosen by Mitsubishi over the standard PVDF-HP or ECTFE liners to have some longer service life on the welds of which PVDF and ECTFE were oxidizing on short term service life.

Using 2.3mm FEP fabric backed sheet by Symalit of Switzerland, Prolite formed an ASME 2:1 torospherical domed head and base and filament wound the body for outdoor service.

Because of the need to be drained completely and to achieve microelectronic purity, Prolite provided the tank cleaned to 100 Megohms at our Clean Room Facility in Vancouver and built a sloped false bottom for 100% drainage.

The vessel has been in operation since 1995 and is operating to all expectations.

Back to Case Histories