Re: Comments on powder coating

Posted by DJ.Voyce on October 07, 1997 at 13:30:14

In Reply to: Comments on powder coating
posted by Fred Murphy on October 06, 1997 at 22:53:54

: For those interested in powder coating a little learned insight. Henry had quite a few of his parts dipped in japanned laqure black before assembly.To come close to this process I decided I would have a few chassis parts powdercoated.The advantages of powder coating were oil,gas,and petrol proof; more chip resistant than enamel or lacqure;available in gloss or semi-gloss in a wide range of flavors.The parts are cleaned and fine sandblasted,used around here a lot on private aircraft refinishing.This fine sandblasting removes very little of the original metal.The metal is then powdered and taken to a large commercial oven where the powder is bakeded into/onto the metal.Any low temp fillers such as plastic filler or lead can not be used as they will melt away .So if you do find a part that has been powdercoated you can be pretty sure that it is not a filled product.I feel that this process is the ultimate in preserving the A that I have gone to the extent of having most of the chassis parts,wheels,brakes,frame,etc.powdered.I know our grandchildren will enjoy the extra spent in the preservation cost avaraged over the years,its worth it! Some parts may require being tapped-off from coating all,such as bearing or brake pad surfaces.Would like to here comments on this subject from one and all!!!!!!
G'Day Fred,
I agree with you about powder coating looking great & being a lot more durable, but it's obviously not for the purist. One of the biggest advantages is it'll normally fill up all those annoying little rust pits which are such a pain to hide, especially on spoke wheels. A disadvantage I've come across is if you happen to get a chip, such as on a sharp corner where the coating tends to thin, there's a chance of rust creeping around under the coating like a cancer lifting it away from the metal as it goes. Fortunately it never seems to get really bad, possibly due to lack of oxygen, & I live in an area that has the absolute perfect weather conditions (bothextreme heat & high humidity) which enhance the proliferation of this phenomena.(phew).
Regardz
DJ
OutOfAfrica A's

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