I never checked details but in powder coating the parts to be coated are kept at a high potential and the powder sticks to it by static charge. After that it is baked in an oven when the particles melt (?) and fuse with the metal surface. The metal surface is of course chemically cleaned ( with acid ) before the application of the powder.
Not something you can do easily at home I think.
Cheers.
Not something you can do easily at home I think.
Cheers.
since i will not have the heat issues with my chassis (im using class D amps now), i plan on having them powder coated. anodizing is too pricey to get it done right, and its hard to get a consistent and even finish. plus, its not very durable.
plus, with anodizing, it doesnt cover anything up, so all scratches, milling marks, etc are visible. you need to spend hours brushing and sanding to get it perfect before you can have it anodized.
plus, with anodizing, it doesnt cover anything up, so all scratches, milling marks, etc are visible. you need to spend hours brushing and sanding to get it perfect before you can have it anodized.
powder coatings -- if you want it in black or gray I can help a lot 
when the substrate coated in powder passes through the UV lamps the cross-linking of the polymer takes place -- in essence you create a plastic coating on top of the substrate -- impervious to normal insults like scratching, mild solvents, etc., much less expensively than vinyl, unbelievably strong compared to paints and other coatings.
the UV light in a powder coating assembly line would tan you in a nanosecond -- the equipment is very expensive -- you'd probably look like an M&M.
when the substrate coated in powder passes through the UV lamps the cross-linking of the polymer takes place -- in essence you create a plastic coating on top of the substrate -- impervious to normal insults like scratching, mild solvents, etc., much less expensively than vinyl, unbelievably strong compared to paints and other coatings.
the UV light in a powder coating assembly line would tan you in a nanosecond -- the equipment is very expensive -- you'd probably look like an M&M.
Make friends with your local motorcycle shop... not the Harley dealer, but the guys who do "custom V-twins", choppers 'n stuff. They have resources for powder coating and also polishing.
I have had car parts and boat parts successfully finished in that way. Home powder coating starts at $800-1000 for all the stuff... I am certain it will cost even more when you start using HER oven for baking.
It is an extremely durable finish.
I have had car parts and boat parts successfully finished in that way. Home powder coating starts at $800-1000 for all the stuff... I am certain it will cost even more when you start using HER oven for baking.
It is an extremely durable finish.
Hi,
so far you all seem to be referring to electrostatic spraying to apply the thin coating.
If thickness is not critical then dipping also works.
Preheat the component and dip it into a tank (bucket or tin) of powder and withdraw. Some powder sticks to the hot surface and the heat then soaks into the powder and gradually melts it to form an impervious layer.
A bit of trial and error experimentation on heating time and dipping time will be in order to achieve a consistent finish.
so far you all seem to be referring to electrostatic spraying to apply the thin coating.
If thickness is not critical then dipping also works.
Preheat the component and dip it into a tank (bucket or tin) of powder and withdraw. Some powder sticks to the hot surface and the heat then soaks into the powder and gradually melts it to form an impervious layer.
A bit of trial and error experimentation on heating time and dipping time will be in order to achieve a consistent finish.
that is how the local motorbike shop to me who specialise in restoring old BSA bikes powdercoat bike frames, they heat them and then dip them, had it done to my bikes frame and the finish wasnt 100% but it definatley was better than before and looked pretty damn cool. i watched them doing it several times, they bake it in the paint oven afterwards for 24hours
Owen
i watched them doing it several times, they bake it in the paint oven afterwards for 24hours Owen
Powder Coating Booth:
An externally hosted image should be here but it was not working when we last tested it.
THAT's something giant
I've heard a bit about powder finish somewhere else and do *NOT* put this in your kitchen oven, there are chemicals in there.
Some people done small parts by putting them on the top of their toasters.
Hardware stores are supposed to sell powder finish kits (There's no oven tho)
I was thinking about destroying my old toaster doing nothing in the basement to get more heat surface.
I've heard a bit about powder finish somewhere else and do *NOT* put this in your kitchen oven, there are chemicals in there.
Some people done small parts by putting them on the top of their toasters.
Hardware stores are supposed to sell powder finish kits (There's no oven tho)
I was thinking about destroying my old toaster doing nothing in the basement to get more heat surface.
Hi,
don't be afraid of powder coating. Smaller components are easy, tiny components are impossible.
The dipping method is taught to 11 to 13 year olds at school.
They manage just fine, a good thick robust coating and without burning themselves. Suits trowel and screwdriver handles, coat hooks etc.
don't be afraid of powder coating. Smaller components are easy, tiny components are impossible.
The dipping method is taught to 11 to 13 year olds at school.
They manage just fine, a good thick robust coating and without burning themselves. Suits trowel and screwdriver handles, coat hooks etc.
DragonMaster said:
Toaster ovens are quite useful in electronics -- I use a dedicated Black and Decker model for doing surface mount -- but that's all it can be used for.
just parenthetically -- there was an article in Circuit Cellar about 3 years ago in which a controller for a toaster oven was built with a Renesas microcontroller -- the oven then cycles like a regular smt oven.
This link
http://www.powderperfect.com/diy.asp
seems interesting.
They tell an ordinary oven is the best for the task. They even talk about freecycle.org to get some.
Seems interesting! The only thing is there are about 15 articles containing the word toaster on their site.
It seems to be this one: http://www.circuitcellar.com/library/print/0704/Lacoste_168/
Am I right?
http://www.powderperfect.com/diy.asp
seems interesting.
They tell an ordinary oven is the best for the task. They even talk about freecycle.org to get some.
Seems interesting! The only thing is there are about 15 articles containing the word toaster on their site.
It seems to be this one: http://www.circuitcellar.com/library/print/0704/Lacoste_168/
Am I right?
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