Frequently Asked Questions

Questions About Our Galvanizing Service

Single-dip dimensions of 44' 6" (length) x 5' 8" (width) x 8' 8" (depth).

Double-Dip method: 65' (length) AND 17' (height)

Hot-dip galvanizing is the metallurgical bonding (alloying) of zinc onto fabricated iron or steel by the immersion of the iron or steel into molten zinc. The galvanized coating provides both barrier and cathodic protection against corrosion, with an expected service life typically in excess of fifty years.

The key to painting or powder-coating over hot-dip galvanizing is proper surface preparation.  A comprehensive guide to painting over galvanizing is published by the American Galvanizers Association and can be downloaded from their website.

We galvanize to ASTM A123, "Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products." This specification covers coating thickness, finish appearance, and all other factors relevant to acceptable galvanizing practices.

American Galvanizing Association


Doing Business With Seattle Galvanizing

Turn-around times on customers' materials are 3-5 business days (Monday-Friday), with advance notice of delivery. Expedited service is available by appointment. Please call to confirm or pre-schedule deliveries when turn-around time is critical.

Our shipping department operates between 6:00 AM - 4:30 PM.

Our receiving department operates between 6:00 AM - 11:00 PM

The minimum charge at Seattle Galvanizing is $150.

Print out and complete our new credit application form and then fax it back to us at (206) 783-3101, or email to [email protected]

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