Author Topic: painting the underside  (Read 4382 times)

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Offline Dave

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painting the underside
« on: April 06, 2010, 10:15:42 AM »
Just wondering if its just a case of whipping out the hammerite and a brush to paint the underside of my cally to help protect it from the elements a little better, or have I got to put something else down first??
Rust never sleeps......... Neither do I

Offline Teejay

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Re: painting the underside
« Reply #1 on: April 06, 2010, 11:23:53 AM »
Ideally you want to put a wax sealant on to protect the underside.
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Offline sealeysonic

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Re: painting the underside
« Reply #2 on: April 06, 2010, 11:35:16 AM »
i gave my cally a good wire brushing and underseal last year....looks ok so far

Offline Teejay

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Re: painting the underside
« Reply #3 on: April 06, 2010, 11:38:40 AM »
i gave my cally a good wire brushing and underseal last year....looks ok so far
I wish I could get underneath mine - would underseal it and clean up the fuel lines
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Offline Dave

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Re: painting the underside
« Reply #4 on: April 06, 2010, 11:42:53 AM »
Would the wax underseal be instead of or aswell as the hammerite? I want a nice shiny black you see, and have seen others hammerite the underside, but no mention of underseal etc.
Rust never sleeps......... Neither do I

Offline Trigger

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Re: painting the underside
« Reply #5 on: April 06, 2010, 11:47:42 AM »
Hammerite, Underseal (Waxoyl for instance) pays yer money takes your choice. I'm in the process of hammeriting the underneath of mine, takes longer than undersealing but should look better when it's finished. Not too much preparation required, get any mud and crap off of course, give it a whizz with a wire brush (GOGGLES!!!) and slap it on

Offline sealeysonic

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Re: painting the underside
« Reply #6 on: April 06, 2010, 11:50:49 AM »
I wish I could get underneath mine - would underseal it and clean up the fuel lines

i replaced my fuel lines at the same time....but as triggs said its not a quick job.

Offline Bad Kid

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Re: painting the underside
« Reply #7 on: April 06, 2010, 12:01:49 PM »
Just be aware that if you paint any of the underside of your car you will accelerate rust unless you seal the whole surface. ie if you miss any small bits, they will rust faster than you can blink!

It's all to do with the way rust forms on ferrous metal
NURBURGRING CHALLENGE :-D

Offline Dave

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Re: painting the underside
« Reply #8 on: April 06, 2010, 13:33:09 PM »
I suppose I shouldn't be as worried about you guys, as

1. I have the ecotoec, so its the galvanised body (Does the underside count)
2. I live in Ireland, where they don't salt the roads in the winter!

I'm not bothered about how long it takes, my only problem will be finding the time to let it dry properly for long enough, as the car is used 5 or 6 days a week most weeks
Rust never sleeps......... Neither do I

Offline Mr V

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Re: painting the underside
« Reply #9 on: April 06, 2010, 13:41:10 PM »
Partial use of zinc coated metal sheet for body panels,
Zinc phosphated bodyshell primered electrostaically (cathodic),
All weld seams and joints sealed with protective compound,
Anti-corrosion primers used on bonnet, doors, wings, sills and tail gate,
Final paint finish applied electrostatically, 
Pvc coating applied to wheel arches and other under body areas,
Polymer reinforced anti-corrosion wax pumped into doors, sills and underbody cavities,
Plastic wheel arch liners, front - full, rear - partial,
Sound damping materials applied to front door panels and rear wing interiors.

Offline Dave

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Re: painting the underside
« Reply #10 on: April 06, 2010, 13:43:12 PM »
Cheers for that info Robbie! I take it that means I should be ok just to slap the Hammertite down, and not have any issues for the rust, of course, if i see any, i will attack it!
Rust never sleeps......... Neither do I

Bovva

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Re: painting the underside
« Reply #11 on: April 06, 2010, 14:17:46 PM »
It costs around

Offline Dave

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Re: painting the underside
« Reply #12 on: April 06, 2010, 14:20:57 PM »
I'd rather do it myself and save the money lol
Rust never sleeps......... Neither do I

Bovva

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Re: painting the underside
« Reply #13 on: April 06, 2010, 14:33:57 PM »
I'd rather do it myself and save the money lol

Oh right, because you're as thorough as a firm that does it for a living ::)

Whatever mate, I think you're underestimating the scale of the job to get it done right but good luck to ya :)


Offline Dave

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Re: painting the underside
« Reply #14 on: April 06, 2010, 15:11:33 PM »
lol, i didnt say that now did i!? but I'm pretty sure i can do a thorough job on my pride and joy withought trying to sound like a big headed moron
Rust never sleeps......... Neither do I