Waxoiling and undersealing

Post by **mobilecat** » Tue Sep 25, 2007 1:03 pm

I have gathered from the discussion on the forum that waxoiling and undersealing should be done asap when buying a bongo. I understand about undersealing but I dont know what waxoiling really is or what its purpose is despite searching. Can someone enlighten me and give me an idea of the cost of these two things. thanks

Steve L · Post by **Steve L** » Tue Sep 25, 2007 3:07 pm

Waxoyling and undersealing are the same thing. At one time undersealing was done with a tar like substance which was next to useless as it used to harden and the moisture simply got under it and formed rust. Now the most popular thing to use is waxoyl to spray on the underside of the bodywork (although there are other products). The thing with waxoyl is that it is thin enough to spray inside body panels as well. It creeps and forms a moisture seal to prevent rust forming and is also said to kill rust that has already formed.
There are a few posts on recommended garages who do waxoyling, but although it is very messy, you do get a sense of its a job well done if you do it yourself. (Does that sound right

)

mikeonb4c · Post by **mikeonb4c** » Tue Sep 25, 2007 4:01 pm

I'm told though that waxoyl does get knocked off the underside, wheels arches etc by road spary and grit and those areas need to be checked and waxoyl reapplied as necessary every 12 months. I didnt want this hassle and cost so went for an expensive option (£400) and had some serious work done by Chassis Clean near me. They took it in for 3 days, took loads of bits off, pressure sprayed and dried it in a hot room for a day before applying waxoyl (internally and externally) and then Dinitrol over that. The latter has a hard surface that is resistant to erosion. The result is a job that doesnt need looking at for at least 4 years, and probably wont require any touching up even then. Worth every penny. Other Bongoists who used them are similarly pleased.

See http://www.chassisclean.co.uk

Mike

Rhod · Post by **Rhod** » Tue Sep 25, 2007 6:02 pm

Undersealing does what it says - it creates a sealed layer on the underside of the vehicle. Until it gets chipped anyway..

Waxoyling can be used in the same way but, as Steve says, it will creep to give a better coverage. Perhaps more importantly it can be injected into hollow parts, like chassis members, to greatly reduce the chance of rust forming from inside out.

Rhod

bigdaddycain · Post by **bigdaddycain** » Tue Sep 25, 2007 6:04 pm

I had my bongo waxoiled for £50 mobilecat.

MountainGoat · Post by **MountainGoat** » Tue Sep 25, 2007 6:43 pm

Just make sure the spare wheel is removed before it is done.

Bantamman · Post by **Bantamman** » Tue Sep 25, 2007 9:20 pm

Is it best to use somthing like shults [underseal] on the wheel arch's and waxoil the rest? Also is there anybody who can recomened a top place in W.Yorks to get it done. Garry.

Post by **mobilecat** » Tue Sep 25, 2007 9:23 pm

Steve L wrote:Waxoyling and undersealing are the same thing. At one time undersealing was done with a tar like substance which was next to useless as it used to harden and the moisture simply got under it and formed rust. Now the most popular thing to use is waxoyl to spray on the underside of the bodywork (although there are other products). The thing with waxoyl is that it is thin enough to spray inside body panels as well. It creeps and forms a moisture seal to prevent rust forming and is also said to kill rust that has already formed.
There are a few posts on recommended garages who do waxoyling, but although it is very messy, you do get a sense of its a job well done if you do it yourself. (Does that sound right )

I will leave the sense of achievement to the pros. I cleaned the inside of my car today - thats enough achievement for one month.

bigdaddycain · Post by **bigdaddycain** » Tue Sep 25, 2007 10:51 pm

Good point about the spare, some places just spray around it!...How lazy?

smartmonkey · Post by **smartmonkey** » Wed Sep 26, 2007 12:48 pm

Shutz is what back street garages use to cover rust and dodgy welding. I wouldn't put it any where near a Bongo.

Bantamman · Post by **Bantamman** » Wed Sep 26, 2007 5:59 pm

Thanks for that smartmonkey,what would you use on the wheelarch's.

smartmonkey · Post by **smartmonkey** » Thu Sep 27, 2007 12:21 pm

I just use waxoyl - it will easily last one or two years and you could re-do the arches in about 10 minutes. The thing is it's not the impact areas that tend to rust anyway - it's the folds and joins that always fail. Waxoyl and dinitrol are the two products that genuinely protect the vulnerable areas because they are thin enought to get in. The back of the wheelarch lip is also a vulnerable area (anywhere that traps muck is because it stays damp and salty). Waxoyl will last at least 5 years in all of these sort of places. You can get a thicker waxoyl that is a better alternative but I have never felt the need

bigdaddycain · Post by **bigdaddycain** » Fri Sep 28, 2007 11:20 am

I've only recently had my bongo waxoiled,prior to this, i used to regularly jet wash under all the arches, and the inner lips where crud could collect.... Am i still ok to jetwash there as i used to? Or would it erode the waxoil away i wonder?

missfixit70 · Post by **missfixit70** » Fri Sep 28, 2007 11:51 am

Beware the plastic crud traps around & in the wheel arches, even the pressure washer doesn't clear it, spend an hour stripping off all the plastic bits & cleaning out properly before squirting liberally with waxoil.

bigdaddycain · Post by **bigdaddycain** » Fri Sep 28, 2007 12:09 pm

Yip, I know the one's you mean... I have had these off in the past, to thoroughly clean,and spray on Hammerite underneath,and in the inner arch lip.

It was at the same time i removed my plastic wheelarches extensions (for painting)

Thankfully, there wasn't a trace of rust under the arches (phew!) I re-bonded the arches i such a way that there was a continuous seal all the way around them, which ( i hope

) is now impervious to water