Powder coating Magnesium

[goincrzy]

I got a Magnesium Intake for my car and a hobby type pc gun an old electric kitchen oven. I've powdercoated steel parts and Aluminum parts but not Magnesium..

Is there anything different I have to do for this type of metal for the pc to coat good?

[baz]

i have powder coated magnesium before with no problem , i cure magnesium at around 370 f . magnesium seems to be more prone to outgasing.
what kind of intake is it , i ask because i don t remember seeing any magnesium intake before

[SCOTTRODS]

Originally Posted by goincrzy

I got a Magnesium Intake for my car and a hobby type pc gun an old electric kitchen oven. I've powdercoated steel parts and Aluminum parts but not Magnesium..

Is there anything different I have to do for this type of metal for the pc to coat good?

If it's a cast part Make sure and outgas for a good long time. If this is not a familiar process keep asking.......

[goincrzy]

From what I understand about outgassing is basically I have to heat the part up to a higher temp then what I would be curing the powder at, For a certian amount of time, right?? Is there a better way to outgas

This intake is for my alcohol injected blower....

[FigureLLC]

magnesium intake... alcohol blower... sounds serious! we want pics!!

i've never done magnesium, but yeah, to outgas i'd probably try preheating at 450 for an hour, let cool, and shoot. maybe use outgas forgivng powder additive, too.

[baz]

i not too sure about outgasing magnesium at 450 i always try to cure magnesium at a lower temperature , i wouldnt want to weaken that intake especially with a blower sitting on top of it

[FigureLLC]

uh, baz seems to have an important point (just did a quick search and posting what i found... didn't read the whole article http://www.keytometals.com/Article45.htm):

Depending upon the composition, magnesium alloys begin to melt at a temperature in the range of about 685 to 1200F (360 to 650C). The common alloys begin to soften and weaken appreciably on exposure to temperatures as low as 200F (95C). However, some special compositions have been recently developed which maintain yield and tensile strength quite well at temperatures up to 400F (205C) or higher.

The usual commercial magnesium alloys of the aluminum-zinc (manganese) type are relatively stable up to about 300F (150C) and may be used for some applications below that temperature. Solution heat-treated castings and hard-rolled sheet in the usual alloys are unstable above 300F (150C) and are not suitable for use at elevated temperatures.