Powder Coating

Improving Adhesion of Thermoplastic Powder

The issue is that the supplier’s black PVC coating, applied at 8–10 mils, over a 304 stainless plate, welded onto a 1008 low carbon steel grid will not adhere to the stainless portion. The coating adheres well to the grid but peels away from the stainless plate. Since we can’t substitute the stainless for another material, is there a chemical treatment or sub-primer that could be sprayed on the steel, prior to the fluidized powder, to improve adhesion? Or can you make suggested changes to the pre-heat, time, temps, etc.?

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Metallic Powder Coating

Do I need to clear coat the entire wheel? Do you typically clear coat over metallic powder coat? Are there any advantages or disadvantages?

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Powder Coat PVC

Has anyone figured out away to powder coat PVC? It is being done on wood now, with a lower melting temp than PVC?

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Powder Coating Flames

Does anyone know the process on how to powder coat a fender with flames?

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New Guns And Controls Boost Transfer Efficiency And Save Powder

At Rubbermaid’s Jackson, MO, plant, they spray quite a bit of powder to coat wire shelving systems for closet organization and other applications.

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Off-The-wall Questions

How many borderline stupid questions must this guy get on a daily basis?

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Corrosion Resistance Problems

Many mechanical specifications insist on hot-dip galvanizing for steam tunnels or outdoor applications. Is there any side by side comparison between the two methods?

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Powder Coating For EMI Emissions

I am powder coating a CRS enclosure and want to know what effect on EMI emissions suppression grounding the powder coat would have compared to a zinc plating finish (per ASTM 633 SC2).

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White Spots on Dark Powder Coatings

I am having a problem with white spots (particles) showing on my dark colors, black, blue, red.

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Conversion Coating For Powder

Have you found or know of an alternative to the Alodine that would give good adhesion and good Florida exposure.

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