I have a number of brackets etc made from anything up to 3mm Ali plate. How well do I need to prepare the cut edges for powdercoating?
I'm unsure whether or not to spend ages making them nice if:
a. The powdercoat will work better with a keyed surface, or
b. If the powdercoat will cover small imperfections anyway.
Cheers
TC
are they not being plasted before they are poweder coated? think thats the norm.
Hi boss,
Stuff we have done for work sometimes gets scratched during handling here, so we use a scotch bright pad on an angle grinder to clean it up, this
comes back fine from the powder coaters.
Also we have things punched so it leaved a very small sharp edge (.25mm???) and this also comes back fine.
i wouldnt bother polishing anything up.
Although the powdercoat is quite thick comapred to a spray paint - it still picks up imperfections quite noticeably if the finish I get from my local
powdercaoters is anything to go by.
I would clean it up so you cant see saw marks but dont worry about the sort of scratches you might get from very coarse wet and dry paper / ally oxide
paper or from draw filing - they shouldnt be noticeable
Thanks all
In particular the CBR Turbo Twins... I want a go when its done!
quote:
Originally posted by TimC
Thanks all
In particular the CBR Turbo Twins... I want a go when its done!
I would expect a nice radiused edge or corner to be better for adhesion than a sharp edge. Also with a sharp edge there is more risk of the coating
getting chipped off.
When I had my aluminium parts powder coated they went through a chemical wash / etch before hand. I am not sure of the exact process. Peatys at
Bradford did all my stuff.