metal that is ready for uv-curable coatings

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.

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Technical Data

UV-Curable Powder Coatings on Metal

Application Conditions

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)

 

Coating Properties

60° Gloss ASTM D 523 10 – 90
Firm 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 – 2H
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
Antifreeze No effect
Cold cleaner No effect
Inert cleaner No effect
E95 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)

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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.