Eve Posted May 3, 2007 Share Posted May 3, 2007 Anyone got an opinion on undersealing and whether it is worth it? My car is fresh from import so her underbelly looks great at the moment, wanna keep it this way! Quote Link to comment Share on other sites More sharing options...
stevie_b Posted May 3, 2007 Share Posted May 3, 2007 I reckon it's definitely worth it. It's not that expensive (in the region of £50 perhaps to get it done). It's a great preventitive measure. Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted May 3, 2007 Share Posted May 3, 2007 When underneith mine i noticed the car has been all coated . Looks very tidy and gives good protection but does add some more weight to the car which im trying to loose:d Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 3, 2007 Share Posted May 3, 2007 Never underseal a used car unless you can get it pressure washed properly, then put in a paint drying oven for 24 hours, which will cost a fortune. If you seal "as is" all you do is trap moisture and salt in all the panel seams and box sections. I'd leave it, pressure wash it and after a long period of hot dry weather Waxoyl it thoroughly. Quote Link to comment Share on other sites More sharing options...
Ian W Posted May 3, 2007 Share Posted May 3, 2007 Never underseal a used car unless you can get it pressure washed properly, then put in a paint drying oven for 24 hours, which will cost a fortune. If you seal "as is" all you do is trap moisture and salt in all the panel seams and box sections. I'd leave it, pressure wash it and after a long period of hot dry weather Waxoyl it thoroughly. I know which i'd be doing Quote Link to comment Share on other sites More sharing options...
SupraPL Posted May 3, 2007 Share Posted May 3, 2007 Never underseal a used car unless you can get it pressure washed properly, then put in a paint drying oven for 24 hours, which will cost a fortune. If you seal "as is" all you do is trap moisture and salt in all the panel seams and box sections. I'd leave it, pressure wash it and after a long period of hot dry weather Waxoyl it thoroughly. Good info! Thanks Quote Link to comment Share on other sites More sharing options...
rovervi Posted May 3, 2007 Share Posted May 3, 2007 waxoyl good stuff but gets everywhere lol Quote Link to comment Share on other sites More sharing options...
supRo Posted May 3, 2007 Share Posted May 3, 2007 My Jap car has been in the UK for 3.5 years and done 50K++ miles through all seasons. The bottom of the car is still in very good condition. It's never had undersealing. Quote Link to comment Share on other sites More sharing options...
jazz1 Posted May 3, 2007 Share Posted May 3, 2007 http://www.lawson-his.co.uk/scripts/products.php?cat=Hammerite%20Ancilliary%20Products these lot sell aerosol cans 400ml or you can pay someone to do it:) Quote Link to comment Share on other sites More sharing options...
Eve Posted May 4, 2007 Author Share Posted May 4, 2007 Thanks folks - much appreciated, if conflicting, advice! Quote Link to comment Share on other sites More sharing options...
Kranz Posted May 4, 2007 Share Posted May 4, 2007 Never underseal a used car unless you can get it pressure washed properly, then put in a paint drying oven for 24 hours, which will cost a fortune. If you seal "as is" all you do is trap moisture and salt in all the panel seams and box sections. I'd leave it, pressure wash it and after a long period of hot dry weather Waxoyl it thoroughly. That CW bloke is right again Steam clean or pressure the underside of the car first, then if you're going to underseal use one of the rubberised Schutz products rather thaen the tar based ones. Use a proper compressed air applicator and mask off all suspension, exhaust, gearbox & prop, diff, brakes, wheels & tyres as the stuff can go everywhere. Oh, and mask off the sides of the car from the sills up. The problem with tar based underseal (the ones from Halfords) is that it hardens with age and cracks. These cracks allow water in, and once in there's nowhere else for it to go so it sits and rusts the underside of the car.... actually making things worse. The rubberised products do not crack. The other option (and better option IMHO) is to use Waxoyl as this forms a flexible and self healing surface over the bottom of the car. It sprays on easily with the pump up can, allows you to see whats happening to the underside and also is easy to get off if needed. You just need to top it up with a bit more Waxoyl every 2 years or so. Again mask everything off. Quote Link to comment Share on other sites More sharing options...
edge Posted May 4, 2007 Share Posted May 4, 2007 As said above by the men in the know. Get it done properly. Im sort of into landrovers and there is a guy in the magazine (i will dig it out if your interested) that does this for a living. Charges about £500 per vehicle and takes him a few days to do but the underside looks nearly as good as the outside. Quote Link to comment Share on other sites More sharing options...
Kranz Posted May 4, 2007 Share Posted May 4, 2007 As said above by the men in the know. Get it done properly. Im sort of into landrovers and there is a guy in the magazine (i will dig it out if your interested) that does this for a living. Charges about £500 per vehicle and takes him a few days to do but the underside looks nearly as good as the outside. Yeah, I've seen that too. Looks awesome but for that price it ought to be!! Its a lifetime treatment using specialist products, like the Dinitrol rustproof kit sold by Frosts http://www.frost.co.uk/productList.asp Its really good stuff, even if it is a bit expensive. Quote Link to comment Share on other sites More sharing options...
edge Posted May 4, 2007 Share Posted May 4, 2007 I did se another guy who also offered a painting service and the finish was meant to be hard as nails. I will dig them out tomorrow as ive been thinking on this aswel. Quote Link to comment Share on other sites More sharing options...
Kranz Posted May 4, 2007 Share Posted May 4, 2007 I did se another guy who also offered a painting service and the finish was meant to be hard as nails. I will dig them out tomorrow as ive been thinking on this aswel. You want Por15 for painting the underside..... it really is tough stuff. Did the Range Rover with it when it was rebuilt in 2003. Still no sign of rust now, and I just painted it over rust as I got fed up grinding it back Quote Link to comment Share on other sites More sharing options...
ShamelessTT Posted May 5, 2007 Share Posted May 5, 2007 When i got mine it was understealed, its pretty rubbery / flexiable at the moment. It does make under the car look tidy i have to say. All that above chat about not been done properly is worrying me now lol (it certainly looks a decent job) but who knows if it was stripped back first ! doh ! Quote Link to comment Share on other sites More sharing options...
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