Chassis protection?

[matt 2LT]

im building an MK Indy R, and am thinking what to protect the chassis/wishbones Etc with.

im not a fan of powder coating, as it can chip and then let water in.

ive heard good things about por15.

so am thinking of using this: http://www.frost.co.uk/item_Detail.asp?productID=9...

with this as a top coat: http://www.frost.co.uk/item_detail.asp?productID=8...


so will this be adaquete protection?

and what will the finish be like on the viewable parts?


so any ideas/recomendations/advice?

cheers

[singlecoil]

I agree with your choice of protection system, I wouldn't use powder coating either.

The finish will depend on the smoothness of your brushwork.

My tip is to use two different colours for the two layers, that way it will be easy to see what you have missed.

[Steve_D]

A good choice but painting a space frame chassis and finding every surface is difficult enough so the second coat will be a nightmare unless it can be done in a different colour/shade.

Steve

[EFA]

Powdercoating works if it is done properly. Something some kit car manufacturers do not do.

The trick is the preparation. The surface should be blasted, degreased, and phosphated, then the powder coat should be applied. You can apply two coats, with a cure in between so long as the component remains hot. This is what the chap I use does. I got zero chipping and flaking on a Caterham chassis as a result.




I have used POR15 on my car and quite frankly I was dissapointed witb the results. It only keys to untreated metal hence the seciond coat will never stick.

[Furyblade_Lee]

If I was building a new kit, I would definately go for the best powdercoat I could find. THEN I I would key up the entire chassis with 800 grit wet'n'dry, and apply lots of thin coats of black Hammerite smooth aerosol to every surface, nook and cranny. The reason being that when the time comes to touch up your chassis (and believe me it will) then with a bit of effort you can get a perfect repair that is not visible. I would also with hindsight of 3 kitcars, during the build process use a black underseal type paint all on the underside of the bare floors and chassis, and behind the rear bulkhead on bare ally around the diff. So that with a jet wash I can get it all clean in an instant. May not be textbook and correct for some people, but that shiny finish looks like a dogs dinner anyway after a couple of years use, road tar, oil and rubber from soft trackday tyres stick like st to a blanket to your lovely ally! Suspension etc. I would still go with a good powdercoat the black smooth hammerite spray on top.

[matt 2LT]

so if i use the grey, then a black top coat this will be easier?

and should i use more than one coat of each, or is one enough?

[p1doc]

my front subframe is powdercoated but have concerns re quality of work,could i just hammerite over bad parts as stop gap??
martin

[RichardD]

Doesn't Hammerite chip easily (relative to POR15)?

[singlecoil]

p1doc said:

my front subframe is powdercoated but have concerns re quality of work,could i just hammerite over bad parts as stop gap??
martin

I would be inclined to give the dodgy bits a good wire brushing, then rub down the bare metal and the rest of the powder coat with rough abrasive and then paint over with suitable metal paint (I use some stuff I bought from Wickes, it's water based and works very well).

[p1doc]

sounds good enough to me
martin