At a glance

Polypropylene is the most economical tank material for Sulfur Dioxide, rated Excellent. PVDF (Kynar®) is also rated Good or better. Rated Fair (contact us before use): nylon tanks and Hastelloy hardware.

Excellent No or minor effect. Recommended.
Good Slight effect. Generally suitable.
Fair Moderate effect. Limited or conditional use — contact us.
Not Recommended Severe effect. Do not use.
No Data Not tested. Contact us before use.

Tank Resins

How Sulfur Dioxide works with the plastics used to make our storage tanks.

Material	Rating
HDPE	No Data SEVERE EFFECT
Polypropylene	Excellent
Nylon	Fair
PVDF (Kynar®)	Excellent

Fittings

How Sulfur Dioxide works with the plastics used for tank fittings.

Material	Rating
HDPE	No Data SEVERE EFFECT
PVC	Excellent
CPVC	Excellent
Polypropylene	Excellent
PVDF	Excellent

Gaskets & O-Rings

How Sulfur Dioxide works with gasket and O-ring materials.

Material	Rating
Buna-N	No Data SEVERE EFFECT
EPDM	Excellent
Viton®	Excellent

Metals

How Sulfur Dioxide works with the metals used for fittings and bolts.

Material	Rating
316 Stainless Steel	Excellent
Hastelloy	Fair
Titanium	No Data
Aluminum	Good