Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

The authoritative public forum
for Metal Finishing since 1989
-----

Paint or powder coating for outside use -- Kynar

I need any help you can give me on applying Kynar paint or a paint or powder with a very good long lasting reputation for outside use no fading, chalking or peeling.

Al Merchant
- Weymouth, Massachusetts
2003

There are three powder coating chemistries suitable for what you are asking for. Each has its ups and downs explained below.

Polyester/Urethane: (Aliphatic) Excellent UV resistance, limited chemical/corrosion resistance. Widely used, readily and economically available.

Polyester/TGIC: Provides the best of both worlds in terms of Polyurethane UV resistance and Epoxy chemical/corrosion resistance. Widely used in the US. Readily and economically available.

GMA Acrylic: The ultimate in color/gloss retention in excessive UV exposure. Usually provide excellent hardness and smooth surface. Drawbacks include price premium due to manufacturing and application incompatibility, and minimal film flexibility.

Andy Peal
Automotive Components - Grand Rapids, Michigan, USA

(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: