Electrostatic powder coating
Powder coating, explained by someone who has spent ten years doing it
I have spent more than ten years inside the electrostatic powder coating industry — commissioning guns and ovens, troubleshooting film defects on customer lines, sizing equipment for the parts people actually coat, and sourcing from factories in China. I write down what I learn here, and I answer questions when people ask.
Reach me directly
Setting up a line, chasing a defect, or comparing quotes? Message me straight — short technical questions are free.
What I write about
Five topics I keep coming back to — including the two that technical blogs almost never cover.
Process & materials
How charging, film build and curing actually behave — and which variables you can move without buying anything.
2 articles 02Equipment
Guns, booths, reciprocators and ovens: what each category is for, and where the money is better left unspent.
1 article 03Troubleshooting
Orange peel, pinholes, back-ionisation, poor adhesion — causes ranked by how often they turn out to be the real one.
1 article 04Industry notes
Who is building what, where capacity is moving, and what it means if you buy equipment or powder in the next year.
1 article 05Sourcing & cost
What things actually cost, why quotes differ by three times for the same brief, and how to buy from China without getting burned.
1 articleLatest writing
New notes on process, equipment, the market and what things actually cost.
Where powder coating capacity is moving in Southeast Asia
A shop-floor read on the Southeast Asian powder coating market: which countries are adding finishing capacity, what equipment they are buying, and what it means for buyers.
How to buy powder coating equipment from China without getting burned
A buying process that works: how to specify, test, audit, inspect and document a powder coating equipment purchase from a Chinese factory — and the mistakes that cost money.
Powder coating defects: causes ranked by how often they are the real problem
Orange peel, pinholes, craters, back-ionisation and poor adhesion — what each one usually traces back to, and what to check first.
Corona vs tribo charging: which powder coating gun should you choose?
The two charging methods behave differently on the same part. Here is where each one wins, and how to decide with a trial instead of a catalogue.
What I can help you with
I do more than write. This is the work I take on, and the questions I am usually asked to solve.
Equipment selection
Which gun, booth and oven combination actually suits your parts and output — and where a cheaper option is genuinely enough.
Line planning & sizing
Pre-treatment, conveyor, coating and curing sized against real part geometry and target output per shift, not against a standard package.
China sourcing & factory vetting
Finding the right factory, checking that what they build matches what they claim, sample approval, pre-shipment inspection and export documentation.
Defect troubleshooting
Orange peel, pinholes, back-ionisation, poor adhesion, uneven film build. I work through cause and effect until the real variable is found.
Training & documentation
Operator training, coating parameters, maintenance schedules and SOPs your team can actually follow after the engineers leave.
Equipment I work with
Selection notes on the main categories of electrostatic powder coating equipment — what each one is for, and when it is not worth buying.
Manual electrostatic powder coating guns
Hand-held corona or tribo guns for job shops, touch-up and low-volume work — the cheapest way into powder coating, and the category where cheap equipment fails fastest.
Automatic linesAutomatic powder coating lines and reciprocators
Reciprocators, fixed gun banks and conveyorised lines: the point where automation pays back is set by part mix and consistency requirements, not by volume alone.
Recovery & boothsRecovery systems and powder booths
Booths and recovery units decide how much of your powder you keep, how fast you can change colour, and how much powder ends up on the floor.
Curing ovensCuring ovens for powder coating
The oven is where most under-sized coating lines are born: it is sized from part mass and line speed, and it is the one component you cannot fix by adding guns later.
Questions I get asked
Who are you, and why should I trust this?
I have spent more than ten years in the electrostatic powder coating industry in China — commissioning equipment, troubleshooting defects in customer plants, designing lines, and working on the supply side. I currently work at a leading Chinese powder coating gun manufacturer. I write under my own name, and I only write about things I have actually dealt with.
Do you charge for answering questions?
Short technical questions are free. If you tell me your part and what you are seeing, I will answer. For line sizing, equipment selection, factory vetting or on-site work, that is a paid engagement — I will tell you clearly which one your question falls into before anything starts.
Can you supply equipment to my country?
I do not run a store here. What I can do is work out what your part mix and output actually require, then connect you with the right factory in China and help with the parts that usually go wrong in an overseas purchase: specification, sample approval, quality control before shipment and documentation.
Which countries do you work with?
Mostly Southeast Asia — Indonesia, Vietnam, Thailand, Malaysia and the Philippines — plus other markets where buyers are sourcing equipment from China. I answer in English; Chinese is my native language, which is useful when you need something pushed through a Chinese factory.
Got a coating problem you cannot pin down?
Describe the part, the defect and what you have already tried. That is usually enough for me to tell you where to look next.