I'm looking for process information and design guidelines (preferably practical experience) with this type of finish. I've tried to Google it but doesn't seems to have much info at all. Your help would be appreciated Eric
Google is useless...too much info, little if any of it hits the target.
You might try
to find suppliers of powder coating equipment and services, maybe their websites have some links to process info. I seem to recall that there is a powder coating industries association of some sort, might give some useful links. Googling THAT may get you something useful. You could try Amazon.com, barnesandnoble.com, booksamillion.com and purchase a technical reference.
I know it sounds bizarre - to pay for something twice - but the technique has been developed to get a consistant surface finish accross components and the supplier I was talking to was supplying to the Auto industry.
Typically Powder coating needs to be "baked" in an oven about 350-400 degrees. So I guess if your nylon could withstand that temp then you might be OK. I just Googled for some info. DuraForm (a Nylon like matirial useing an SLS process) has a melting point of 363 degrees F. So even at 350F, I would think that the part is going to get very soft.
Nylon is a high temperature plastic. If the powder had a low fusing temperature or was a heat cured epoxy then this might make sense. One drawback might be that the powder would limit the high temp properties of nylon. As I think about it this might be a good process to color nylon when it is fiber filled. I never liked the look of my car door handles after a few years of sun. It exposes the filler.
I was looking at street furniture with a filled plastic for strength and to match in with all the powdercoated steel and aluminium.
The problem was getting the conductivity consistant to get a good attracion for the powder. But it looks like it may have been solved after just reading Paint and Powder.
Its quite a usefull process to keep in mind because for low volume items like street furniture, on each job the architect wants his own colour and it is just not economic for coloured plastic production runs. So we were planning on buying in a decent amount moulded in brown and then colouring to order.