No registration, no passwords; no pop-up ads -- just aloha, fun, & authoritative answers.
As an eBay Partner & Amazon Affiliate we receive compensation for qualifying purchases.
Home /
Search 🔍
the Site
pub  Where the world gathers for
plating, anodizing, & finishing Q&As since 1989


Finishes for Natatorium ductwork

I am researching suitable materials and finishes for ductwork in natatoriums (indoor swimming pools). I am looking at round spiral ductwork hung from the ceiling in large facilities. The ducts would be exposed to air with high humidity and chlorinated water. There is a possibility that condensation could occur on the ducts. I am looking for advice or a study that compares different materials (galvanized steel, aluminum, stainless steel, fiberglass, etc.) and different coatings (anodizing, epoxies, urethanes, acrylics, etc.). In addition, the costs of these materials and finishes are a consideration. Any advice on these items or sources where I could find this information would be appreciated.

Ellen Beckmann
- St. Louis, Missouri

Round spiral wound fairly well limits you to metal. The most common being aluminum and stainless, but I would imagine that steel is available also. Aluminum is going to pick up a white corrosion product. Steel will rapidly rust. Stainless steel is great, but is relatively expensive. The aluminum will last several years, but will look better and last longer if painted. There is flame retardant PVC available. White would be a reasonable color. Non flexible. Fiberglass is available in any color.non flexible. All will require professional installation.

James Watts
- Navarre, Florida

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Chemicals &
Consult'g, Train'g
& Software

About/Contact  -  Privacy Policy  -  ©1995-2024, Pine Beach, New Jersey, USA  -  about "affil links"