finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsBooksHelpWantedAdvertiseForum
topic 10404

Powder coat VS 2- Coat Polyurethane finish


 

I have been given the task of finding out which of the two coating processes are more advantageous to the owner of a 5-story concrete parking garage at an airport. This would encompasses mostly hand rails that are exposed to weather.. The concerns would be mostly longevity, ease of maintenance and repair. I do not currently have a spec for powder coating. Here is the spec for the 2-coat polyurethane system. Primer: Two component polyamide epoxy, zinc rich metal primer applied at spreading rate recommended by the manufacture to achieve a total dry film thickness of not less than 4.0 mils. to 5.0 mils.DFT. Product shall have minimum of 64% volume solids and 85% by weight zinc. First and second coats: Full gloss exterior, high solids polyurethane applied at spreading rate recommended by the manufacture to achieve a total dry film thickness of not less than 3.0 mils. Product shall have minimum 65% volume solids. I had hoped that there would some testing from other than the manufactures.

Eric P [last name deleted for privacy by Editor]
- Spokane, Washington, USA


 

Hello Eric,

Powder-coating will give you better durability compared to the polyurethane. The hand rails will need to be dismantled and brought to a powder-coater, the polyurethane could possibly be applied on the job-site (check with the manufacturer, the hand rails might be out of service for a few days while the coating cures).

Hope that helps,

Jake Koch
G. J. Nikolas & Co., Inc.
supporting advertiser
Bellwood, Illinois
nikolas banner ad



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.