Underbody rust proofing/Dinitrol

[OvlovS70]

Originally Posted by CNGBiFuel

An S70, won't usually rot. The galv is so good, I can't imagine that 2008 will be around long enough to worry about it.

Cars after about 2002/3 have obsolescence built in. The dealers make more money out of servicing a car than selling it these days. The bills will kill it, not rot. Leave it.

Hello,
Unfortunately if I leave it it's the rot bill that could kill it.
As its a long term, very long term keeper, I need to address this somehow.
Cheers

[OvlovS70]

Originally Posted by 827Roverman

I know its too far away from you, but I had my 940 professionally done with DINITROL almost three years ago by Rochdale Undersealing near me yes it took about four days and they provided a loan car, the procedure was, firstly all the underside was steam cleaned, any rust found was treated, all the wheel arch liners were removed, all the underside was then treated with the Dinitrol, along with all the box sections, inside all the doors, inside sections of both the bonnet and boot lid, a lengthy process but I think worth it, just ask your company exactly what they will do before you proceed. David.

Hello,
That is the exact procedure this place follows too.
I'm going to see them for a discussion on all work before it starts proper
Thanks for your comprehensive reply.
Cheers

[OvlovS70]

Originally Posted by Rebuild

I've used dinitrol products a fair bit, their stuff is good/excellent. The thing is I'm not a fan of how some commercial places do their undercoating, at least here they spray the thick rubberized coating everywhere and depending on where you get it done they might use the thin oil based stuff inside the doors. The problem with the thick stuff is if there is any rust under it it's just going to block it out of sight and make the problem worse in the long run. Even if you spray it on a completely rust free surface with time it's going to chip/fall off/wear out somewhere and water is going to enter on that spot. If you are unlucky the undercoating prevents that water from getting back out properly = rust everywhere.

After it's sprayed on it's on there. Good luck trying to wipe it out if need be. Some harsh cleaners that car wrappers use seem to soften it up to a point where it actually wipes off but no such luck with regular cleaners I find. My opinion is, in the long run I'd rather have no undercoating at all if the other option is what I've written above.

That said what I'd recommend instead is Dinitrol ML. You can spray on rust, you can spray it on a rust free surface, you can spray it on just about everything under the car. It will slow down existing rust quite well. With a tube extension you can get the stuff in every darn cavity under the car you can find and it will spread quite well. Also inside doors, fenders etc. Considering how thin it is, it actually clings on surprisingly well and spraying it on doesn't that a huge amount of time.

So what's the catch? There are several. It won't be as permanent of a solution so you'll have to reapply it more often, I do my cars once or twice a year. Your car will drip and smell for a day or two. It's a somewhat messy job, even on a lift.


Some additional notes, I greatly dislike rubberized undercoatings so I'm biased and I do not do undercoatings professionally so I'm just a semi-informed nobody on the subject. Your mileage may vary.

Hello,
Thanks for your informative reply.
Some of these points are also my concerns but I'll get them to run over the entire procedure.
They offer different colours of Dinitrol - brown apparently cures harder.
They offer yearly free checks and update work as is required.
Cheers

[griston64]

[QUOTE=OvlovS70;2518930]Hello,
Indeed it is.
Cheers



I'll be interested to see how it goes then. I spoke to the chap and he seemed very knowledgeable and also very helpful.

I'm thinking of getting my 940 done once I get all the other jobs sorted

Cheers, Mark

[OvlovS70]

[QUOTE=griston64;2518940]

Originally Posted by OvlovS70

Hello,
Indeed it is.
Cheers



I'll be interested to see how it goes then. I spoke to the chap and he seemed very knowledgeable and also very helpful.

I'm thinking of getting my 940 done once I get all the other jobs sorted

Cheers, Mark

Hello,
I'll gladly let you know how it all goes. Lovely car the 940.
Cheers.