Guest Annie Posted October 20, 2005 Share Posted October 20, 2005 Having just acquired a nearly-new 6.64 metre Rapido, we are wondering if it advisable to have it undersealed. We have had conflicting opinions. Our local Mercedes Truck Service Centre say there is no point - it is unnecessary. Other motorhome owner friends, swear by it. If anyone deems it wise, is anyone able to give us a cost estimate and where to get it done? We are in East Anglia but would travel further for a good job. Annie Link to comment Share on other sites More sharing options...
Guest Ralph Posted October 20, 2005 Share Posted October 20, 2005 I wouldn't use underseal but I have used Waxoyl on the complete underside of ours as well as iside all the chassis and cab hollow sections. This was a DIY job for me but I believe there are specialists who do specifically Waxoyling. Cost to us, bearing in mind it was DIY, £30 for the Waxoyl and a days lying on my back spraying. Link to comment Share on other sites More sharing options...
Guest David Powell Posted October 20, 2005 Share Posted October 20, 2005 A friend of mine who had a body repair shop but has now retired to spent more time away in his motor home, says:- It is not a good idea to underseal a preloved motor home as you may seal in corrosion that has already started, but has as yet gone unnoticed, but would continue to eat away at the metal unseen behind the underseal. Waxoyl can halt any corrosion that has already started, and is a cleaner job to carry out. For what it is worth some-thing for you to think about. Link to comment Share on other sites More sharing options...
Guest Dave Newell Posted October 21, 2005 Share Posted October 21, 2005 I can heartily reccomend Waxoyl although I would suggest professional application by Rustbusters as its a messy job for DIY. Don't under any circumstances have traditional underseal applied for the reasons stated by David above. Waxoyl is different because it not only blocks out water and air but treats any existing corrosion. Dave. Link to comment Share on other sites More sharing options...
Guest Annie Posted October 22, 2005 Share Posted October 22, 2005 Many thanks for the answers we have received to our enquiry re "oiling". Our mistake - we put the wrong heading and didn't mean undersealing! We have sent an enquiry to Rustbusters and will see what quote we get from them. Annie Link to comment Share on other sites More sharing options...
Guest David Powell Posted October 23, 2005 Share Posted October 23, 2005 While on the subject of underseal, if applied to the aluminium roof and stippled by running a foam paint roller over it, then when dry paint with builders flat roofing aluminium paint, to keep it cool, it will cut down the noise of heavy rain beating on the roof. Not high tech. but perhaps worth a passing thought, and perhaps seal the odd leak that you have not found yet. Link to comment Share on other sites More sharing options...
Guest Derek Uzzell Posted October 28, 2005 Share Posted October 28, 2005 An alternative to Waxoyl is Dinitrol. I recall reading a comparative test by a classic car magazine of various rustproofing and corrosion inhibiting products (including Waxoyl) and Dinitrol came out top. There's information about Dinitrol on www.rust.co.uk The company to which this website relates is called Rustbuster, but I believe this has no connection with "Rustbusters" who were mentioned in earlier replies and advertise in MMM. Link to comment Share on other sites More sharing options...
Guest Annie Posted October 28, 2005 Share Posted October 28, 2005 Thanks Derek for futher information. We sent an e-mail to Rustbusters several days ago but as yet received no reply to our request for a quotation. This does not fill one with confidence in them. Will try the firm you mentioned. Annie Link to comment Share on other sites More sharing options...
Guest Derek Uzzell Posted October 29, 2005 Share Posted October 29, 2005 Annie: I once asked Rustbusters for a quotation to treat our previous motorhome (a 1997 Ford Transit-based Herald) with Waxoyl and I recall that the asking-price was off-putting. Worth checking Yellow Pages perhaps, as I found there were several local-ish firms specialising in this sort of work (for example, one in Malvern who rustproofed new Morgan cars). Their quotes were significantly cheaper but there was sometimes a potential problem accessing their workshops due to the motorhome's height. Eventually I did a DIY job - a horrid filthy task and I ended up high as a kite from the fumes. In fact, the only rust that appeared on our Herald during our 6 years of ownership was clearly due to an original manufacturing fault and was in a position that was unreachable by spraying equipment, no matter how sophisticated the equipment or how skilled the operator. I tend towards your Mercedes Truck Service Centre's opinion - with a new (or nearly new) modern motorhome, further extensive rustproofing should be unnecessary. I shan't be spraying Waxoyl all over (or under) our new Hobby - I've had a good look at it and concluded that it just doesn't need it. All the hollows, box sections, floor-pan, etc. of the base-vehicle (another Ford Transit) seem to be heavily protected already (exactly as one would expect with a modern vehicle), while many of the sheet-metal components that might have rusted on the Herald's cab have now been replaced by plastic. But I do admit to brushing Waxoyl round a few of the under-chassis bits Hobby has added as part of the conversion for a little extra protection. Unless I had firm plans to own the vehicle 10 or more years, I wouldn't spend several hundred pounds on anti-rust treatment for a new motorhome. As modern base-vehicles are already so well protected against corrosion I'm unconvinced such additional work is either needed or offers genuine value for money. A personal view of course, and if others choose to disagree I shan't argue. Link to comment Share on other sites More sharing options...
Guest Annie & Co Posted October 29, 2005 Share Posted October 29, 2005 Thanks again, Derek. We were fast coming to the conclusion that our money would be better spent otherwise. One could buy an awful lot of wine for instance. Likewise being 70 year olds we guess we may not need to worry too much about underbody rust - our joints may give way sooner. Annie Link to comment Share on other sites More sharing options...
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