At a glance

Nylon is the most economical tank material for Iodine, rated Excellent. PVDF (Kynar®) and HDPE are also rated Good or better. Rated Fair (contact us before use): polypropylene tanks and polypropylene fittings.

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 Iodine works with the plastics used to make our storage tanks.

Material	Rating
HDPE	Good
Polypropylene	Fair
Nylon	Excellent
PVDF (Kynar®)	Excellent

Fittings

How Iodine works with the plastics used for tank fittings.

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

Gaskets & O-Rings

How Iodine works with gasket and O-ring materials.

Material	Rating
Buna-N	Good
EPDM	Good
Viton®	Excellent

Metals

How Iodine works with the metals used for fittings and bolts.

Material	Rating
316 Stainless Steel	No Data SEVERE EFFECT
Hastelloy	Excellent
Titanium	No Data
Aluminum	Excellent