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This is a PDF document on IMPORTANT CHEMICAL RESISTANCE INFO regarding material formulations tanks are made of and the different compatibility characteristics of the bulkheads and seals material formulations as well I believe.

Also,

This company SPECIALIZES in manufacturing Portable Chemically Resistant tanks.
The company is Snyder Industries , Inc.

Here is the link to the PDF

http://www.snydernet.com/_pdf/_industrial/_misc/Chemical%20Resistance%20Chart.pdf

-- Edited by Roof Clean USA at 14:08, 2009-02-25