Technical tackling rust under car

[Liquid Knight]

Get a wire brush for your grinder and clean as much of the surface rust off as possible before applying any paint. Hammerite used to be brilliant but now it's not solvent based you're better off with normal etchprimer and paint.

If I'm building a rally car or off roader I used truck bed coating on the underside and up to the bumper line.

 

[fingers99]

Toolstore do a product like the old Hammerite (Xylene based) at about half the price. The "new" Hammerite is still solvent based, but they changed the solvent. Weird. I like the smell of Xylene in the morning.

Truck bed stuff is likely to be very good if you can get it at a sane price (or free) -- otherwise an epoxy or polyurethane based stuff like Epoxy Mastic or Eastwood's Chassis Black.

 

[flisko]

what about that stuff that is used on body repair with fiber glass in it?

 

[fingers99]

If your MOT man even suspects that you've used that on anything structural (it'll sound very different to his little hammer) it'll be a fail.

If it's got penetrating rust (or rust that significantly weakens the structure) welding is the only way.

 

[flisko]

they use hammers on the body?

 

[oldhammer]

they use hammers on the body?

mot testers dont use hammers anymore,

a small tool like a ice pick ithink is all ive seen them with now a'days.

iguess your not from blighty tho eh so things may be differnt at your side of the pond

 

[flisko]

found a hole caused by rust, u can poke right through it and hit where your legs go when u sit in the back, took it to a free mot and the guy said he would fail me, he advised to weld some plate over it

 

[Liquid Knight]

Give us a photo' and your location and if it's too much for you to tackle one of will be more than happy to help.

 

[fingers99]

Last Mk1 I did I charged £60, but she was much sexier than you!

 

[flisko]

mot fail, while other rust buckets are driving with no worries

 

[flisko]

Last Mk1 I did I charged £60, but she was much sexier than you!

60 squid you say, how much work and material was used got any pics?

 

[fingers99]

No Pics. Not a lot of steel -- was in the usual rear "jacking point" area.

 

[flisko]

how much work am i looking at here if i prepare everything for the guy to weld a plate on it?

 

[fingers99]

mot testers dont use hammers anymore,

It's small, but it's still a hammer.

 

[Liquid Knight]

how much work am i looking at here if i prepare everything for the guy to weld a plate on it?

That's subjective. A 10p sized hole in my mate's Micra ended up being the size of an A5 piece of paper by the time I cleaned all the rust out.

That cost him twelve beers instead of eight.

 

[oldhammer]

It's small, but it's still a hammer.

ah rite, plastic tho aint it,

they is not as brutal as they used to be,

 

[flisko]

That's subjective. A 10p sized hole in my mate's Micra ended up being the size of an A5 piece of paper by the time I cleaned all the rust out.

That cost him twelve beers instead of eight.

i posted pics on previous page

 

[fingers99]

But it's pretty much impossible to tell without getting down and dirty with it.

 

[flisko]

But it's pretty much impossible to tell without getting down and dirty with it.

i wonder is it even worth doing it now, got mot in 6 months mhmhmmh

 

[Liquid Knight]

i posted pics on previous page

The photo' I saw and first look at the Micra showed a 10p sized hole. It's only after cleaning the crap away the hole became a lot bigger.