Powder Coating Metal
Metal is an ideal candidate for UV-curable powder coatings. We have created UV-powder formulations for both ferrous and nonferrous metals like: cold rolled steel, aluminum, tin plated steel, and brass.
UV-curable powder coating’s low melting temperature and fast finishing process make it an excellent option for pre-assembled metal parts containing heat sensitive materials (gaskets, plastics, and electronics) and metal parts that are large in mass.
There are many different processing steps that are used to prepare the metal for finishing. Some metals require specific pre-treatments. We have worked with various types including: zinc phosphate, iron phosphate, and zirconium. Every finishing system is unique, please contact us to discuss.
With growing environmental regulations many companies have approached us looking for a new or replacement system for their existing solvent-borne coating line. A UV-cured powder coating system offers excellent performance characteristics without the negative environmental impacts.
Fill out our Finish Requirements Form if you have an existing project you feel UV powder could be a fit for.
UV-Curable Powder Coatings on Metal
|UV Cure||It is recommended that opaque powder coatings be cured using gallium-doped lamps with a UV-V dosage of 1500-3000 mJ/cm2 and UV-V irradiance of 1000-2000 mW/cm2.|
|Storage and Shelf Life||Dry and cool conditions below 65°F for 6 months (formulation can affect storage stability – contact Keyland Polymer to confirm the appropriate storage conditions for your product)|
|60° Gloss||ASTM D 523||10 – 90|
|Film Build||ASTM D 4138, Method A||1.5 – 2.5 mils|
|Adhesion||ASTM D 3359, Method B, Cross hatch||4B – 95% adhesion|
|Pencil Hardness||ASTM D 3363 Scratch Resistance||H – 4H|
|MEK Resistance||PCI Test Method # 8||No softening after 50 double rubs|
|Abrasion Resistance||ASTM D 4060, CS-17 Wheel 500g, 500 cycles||25 – 35 mg material loss|
|Impact Resistance||ASTM D 2794 Direct||160 in/lbs no cracking|
|Flexibility||ASTM D 552, Method A||< 1/2″|
|Salt Spray Resistance||ASTM B 117, CRS pretreatment Bonderite 1000||1000 hours|
Chemical Resistance Test – 24 hour exposure
|Engine oil||No effect|
|Gearbox oil||No effect|
|Hydraulic oil||No effect|
|Brake Fluid||Slight gloss loss|
|Cold cleaner||No effect|
|Inert cleaner||No effect|
|Unleaded gas||Slight/moderate gloss loss|
|Diesel fuel||No effect|
|Battery fluid||No effect|
NB09-12C16 S-1, Evaluation of ZR12C16R1 (12/10/15)
Available Colors and Products
Keyland Polymer can develop a custom powder to match both RAL and Pantone standards as well as customer supplied samples; including metallic and speckle finishes.
Our in-house coating, formulation and testing laboratory allows us to develop and validate coatings for your specific product application and performance requirements.
Disclaimer: The information listed is correct to the best of our knowledge and test results. The recommendations and suggestions herein are made without guarantee or representation of results. We recommend adequate testing in your laboratory or plant to determine if this product meets all of your finish requirements.