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Lining stainless steel vats with fiberglass to prevent attack by H2SO4

September 3, 2009

I hope you can help! my problem is with 1000 l containers made from 304 st/steel that carry sulfuric acid, when they are empty we still have a resedue of about 15 L of sulfuric at 97% left in the container. The containers are left sometimes with lids open; this then dilutes the acid making it very corrosive with the st/steel.
what I would like to know is that if I line the container with fiberglass will this be resistant against sulfuric acid less than 97%

Regards John

John Wigham
engineer - Gateshead, Tyne & Wear, UK

September 10, 2009

John,

Fibreglass on its own will do little for you. What is important is the resin.

Personally I would use polypropylene lining. This should be adequate if the process is not heated.

Brian Terry
Aerospace - Yeovil, Somerset, UK

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