Re: Power Coating

["Solomon Ngan" <sngan@netaccess.on.ca>]

> Date:          Fri, 15 Dec 1995 04:22:53 -0500
> From:          "mike" <mike@genesis-microchip.on.ca>
> To:            quattro@coimbra.ans.net
> Subject:       Power Coating
   
>      Anyway, my question is what do you recommend for finishing the 
>      suspension parts after sanblasting (comments from Vicarage cars would 
>      be very appreciated)? Harold (the sand blaster) recommends powder 
>      coating, one coat only, I don't think you can do more? He showed me 
>      some examples and it looks very similar to the finish on springs? 
>      
>      I am going to call a company about galvanising the parts and then 
>      having the power coating done, Harold believes this will be expensive 
>      and they may not be able to mask off areas (e.g. the wheel bearings 
>      and threads). Any experiences of galvanising parts? 

Hi Mike,  I don't have experience in galvanizing auto parts.  
However, I am quite similar with powder coating.  In fact, I 
installed a powder coating line for my company in 1994.  Powder 
coating is more durable and give you better corrosion resistence.  
However, you must choose the right powder - eg, hybrid vs polyester 
vs nylon and other specialty powders.  They all have different 
corrosion performance and "flexibility" or "ductility".  It is also 
possible to put on more than one coat.  Yes, it is an electrostatic 
process, but the part usually has enough ground to attract the 
charged powder.  A lot of auto components are e-coated and then 
powder coat as top coat.  I just powder coated some of my home 
appliances parts - I put on five (5) coating for extra corrosion 
performance.
 

_________________________________

Solomon Ngan <sngan@netaccess.on.ca>
  '93 100s
  '90 90q20v