Powder coating laser-cut edges: adhesion and coverage
Laser-cut edges hold 40–60% of the face film and carry 5–20 µm of oxide. How to prepare, radius and specify powder coating laser-cut edges that survive.
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Topic hub · 10 guides
Surface treatment and powder coating
Coating failures are rarely the powder's fault. They are usually a cleaning, rinsing or conversion problem that happened before the part reached the booth. Ganesh runs seven-tank pretreatment, a 16 ft by 16 ft shot blast chamber, an 18 ft by 14 ft powder booth, a wet paint booth and a curing oven in-house. These guides cover each tank, degreasing by substrate, phosphating, powder versus wet paint, DFT and adhesion testing, and diagnosing blistering, pinholes and creeping corrosion.
Guides in this topic
Seven-tank pretreatment, phosphating, shot blasting, powder and wet paint selection, film thickness and the failure modes that show up two monsoons later.
Powder coating aluminium parts: finish and adhesion
Alloy, temper, pretreatment, film build and cure temperature decide whether powder coating aluminium parts survives a monsoon or blisters in a year.
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Degreasing electrical enclosures before coating
Degreasing electrical enclosures before coating: mill oil, press lubricant and laser oxide, the seven-tank route, drain holes and the adhesion checks that hold.
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Degreasing mild steel parts before coating
Why a 1 µm oil film defeats powder on mild steel, the alkaline cycle that removes it, the water-break test that proves it, and the film build to specify.
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Degreasing galvanised steel parts before coating
Why oil, white rust and laser oxide ruin coating on galvanised steel, the pH window that protects the zinc layer, and the film build a Z275 sheet can take.
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Seven tank pretreatment line: inside all seven stages
Inside the seven tank pretreatment line tank by tank: bath temperature and titration, rinse cascade conductivity, dwell, drag-out and what an auditor checks.
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Seven-tank pretreatment: what each stage prevents
The seven-tank pretreatment process explained by the defect each stage prevents, with film thickness, adhesion and cure values a coating drawing should carry.
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Why powder coating fails on outdoor enclosures
Blisters, edge rust and chalky panels are pretreatment and cure failures, not powder failures. The five modes and the callouts that prevent them.
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Degreasing before powder coating
Why degreasing decides powder adhesion: what has to come off, how a seven-tank line works, rinse conductivity, film build, cure and the failures it prevents.
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