I have purchased 4 litres of ACF 50,to spray all underneath mine & inside cavities when I get it.
You only get it new once.

 

Agreed, whats your application method?

 

Not sure, as I’ve never done a whole car.

tried a Wurth type brake cleaner bottle, but it’s not really powerful enough.

think I will just use a pistol style are gun with a Lance , they are about £20 on eBay.

 

I’m also going with ACF-50 For underside and engine bay.

 

Ok, so as I previously mentioned , I intended to treat the underside of the Yaris before it got covered in road Ming.
Roads are dreadful at this time of year, what with salt & general grime.
Also you only get one chance for it to be new.
The car had about 14 miles on the odometer at collection, and we did about 3 miles in it.
As a result, it was literally filthy (I-asked the dealer not to wash the car).
Anyway tonight, I pressure washed the exterior & underside with cold water & then put it on the lift .
I didn't take a before vid, but here is one afterwards.
I used a Sealy underbody sealant gun , with the plastic lance, for going into cavities & its come out quite well.
Iam not so worried about the body, although the rear sill areas look vulnerable .
Its all the shiny black stuff that tends to rust badly, ie subframes & suspension arms.
Also the treatment is very oily, so it facilitates the removal of any fixings later in the cars life.
The rear subframe has loads of welded joints, and several already have the very slightest evidence of corrosion starating.
The ACF is about £90 for 4 litres & I probably won't use 1/2 of that.
I have done all the black bits, tomorrow morning I will start early and spray inside all the body cavities that I can.
There are loads of plugs you can remove to spray inside.

 

Thanks, I guess my main question is can this stuff be sprayed onto the suspension bushings? There are a couple of spherical bearings in the rear suspension and obviously various rubber ones. Most of it is all covered with dust covers but would just want to make sure the oily substance won't jeopardise any of the moving parts in the suspension.

Having said that, your stuff looks good. It's oily but that probably means it can be removed easily with a rag and fuel, and it is not caked on like waxoyl.

How long does this stuff tend to last on the car through all weathers and is it sticky to where road grime, dirt and salt will stick to the oily residue underneath?

 

Thanks for posting how long will the underside coating last please ?

 

Not too sure, probably a year., but where it creeps into the box sections, prob many years.

 

Just watched a couple of vids on ACF 50 looks to be really good at preventing corrosion, another job for the list of things to do when I get mine.

 

I have been having bad thoughts about a Land Rover Defender for some time - and had considered 50th Anniversary Japanese import which need some form of underbody treatment. Lot’s of the LR guys use Dinitrol.

I’m a novice at this. Would that be an option if planning to keep the car long term?

 

I have been having bad thoughts about a Land Rover Defender for some time - and had considered 50th Anniversary Japanese import which need some form of underbody treatment. Lot's of the LR guys use Dinitrol.

I'm a novice at this. Would that be an option if planning to keep the car long term?

Yes it's an option, I have it on my Defender. It's black though, if that matters to you (looks good on a Defender, maybe less so on the shiny bits of the GR?).

 

Really helpful, thanks so much for posting.

 

The ACF 50 does attract all the dust etc, so ends up looking dirty.
The thing is all of the product that is in the box sections will not be affected, but continue repelling rust & water.
when it comes to taking bits off for maintenance, everything comes apart like new.
If you get fed up if the dirty look, you can jet wash it off & start again.

 

I’m considering lanogaurd to coat suspension and under side on mine. Lucky I’ll have access to a 2 post lift to make it easier

 

I'm considering lanogaurd to coat suspension and under side on mine. Lucky I'll have access to a 2 post lift to make it easier

Did you go for the lanoguard in the end? I'm looking at it and it looks pretty impressive and easy to do yourself ☺

 

Mine is going in for this: https://www.pmwltd.co.uk/dinitrol

ACF50 is excellent for all your running gear and you just make sure you give it a topup whenever you're under the car for any reason.

 

Not an interesting video, or very clear, but took this of my front subframe , just after ACF treatment

 

Yeah, can't say I'm surprised. It's just stamped steel and welded. It's expected to happen. These cars definitely need to be undersealed from the off.

 

I need to find a spare 2 poster near me or somewhere that can do it! I’m farnborough/reading way if anyone knows somewhere!

 

I'm tempted by ACF-50 in particular, don't really want the heavy black sticky stuff that is Dinitrol or Waxoyl. Problem is I can't find anybody that offers this as a professional service, and realistically I think you need a lift to do it decently (which I don't have). If anybody knows or finds anybody in the Hertfordshire area that would do this, I'd appreciate the details.

 

These guys near Buntingford are very reputable in the Land Rover scene. They use Dinitrol and tetrosyl but to be honest it's very good stuff.

When I take delivery of mine I will be giving them a call to see what they can do. Pricing doesn't look terrible either.

https://www.cskautomotive.co.uk/the-rust-prevention-centre/

 

Sod it, I've bought some (ACF-50) anyway - it looks a lot easier to apply than I thought, so I can probably manage it myself on axle stands. Might not be perfect, but a lot better than nothing.

 

Are there any plastic floor trays underneath that have to be removed?

 

Yes, arch liners and underfloor plastic guards/aero aids.

 

Here is a video of a treatment using Corrolan. Once applied the underside looks like the car has been through a rally stage, which is quite fitting for the GRY!

 

Slight aside have had my GR ceramic coated and am thinking about getting a weatherproof cover to protect it whilst I am sorting out space in the garage.

Any recommendations?

 

To be honest I think covers do more harm than good on a car you really care about, especially if you've had it ceramic coated anyway, so the elements won't hurt it. But if you must, I think these guys are very well thought of:

https://www.classicadditions.com/en-GB/car-covers/prodcat_1052

 

Here is a video of a treatment using Corrolan. Once applied the underside looks like the car has been through a rally stage, which is quite fitting for the GRY!

This looks like the colorouss they use on rusting flanges offshore not nice.

 

Ok, so as I previously mentioned , I intended to treat the underside of the Yaris before it got covered in road Ming.
Roads are dreadful at this time of year, what with salt & general grime.
Also you only get one chance for it to be new.
The car had about 14 miles on the odometer at collection, and we did about 3 miles in it.
As a result, it was literally filthy (I-asked the dealer not to wash the car).
Anyway tonight, I pressure washed the exterior & underside with cold water & then put it on the lift .
I didn't take a before vid, but here is one afterwards.
I used a Sealy underbody sealant gun , with the plastic lance, for going into cavities & its come out quite well.
Iam not so worried about the body, although the rear sill areas look vulnerable .
Its all the shiny black stuff that tends to rust badly, ie subframes & suspension arms.
Also the treatment is very oily, so it facilitates the removal of any fixings later in the cars life.
The rear subframe has loads of welded joints, and several already have the very slightest evidence of corrosion starating.
The ACF is about £90 for 4 litres & I probably won't use 1/2 of that.
I have done all the black bits, tomorrow morning I will start early and spray inside all the body cavities that I can.
There are loads of plugs you can remove to spray inside.

Thanks again for this Lighty. I've just done mine, and it was a very easy job, even without a lift (my car was on four axle stands). I'm weird, but I actually found it very satisfying to do as well, and the underneath looks lovely and shiny now! I know it won't stay like that for long, but it's good to know I have some level of winter road protection. Clearly it won't last as long as "proper" underseal, but doing this job once a year is no hardship for me.

 

Thanks again for this Lighty. I've just done mine, and it was a very easy job, even without a lift (my car was on four axle stands). I'm weird, but I actually found it very satisfying to do as well, and the underneath looks lovely and shiny now! I know it won't stay like that for long, but it's good to know I have some level of winter road protection. Clearly it won't last as long as "proper" underseal, but doing this job once a year is no hardship for me.

View attachment 689

What product did you use in the end? Was it easy to remove the wheel arch liners? Cheers
Greig

 

I used ACF-50. I didn't remove any liners or covers. Probably stupid, but my main concern was the exposed bits (what's under the liners is mainly just painted/galvanised chassis anyway).

 

Ahh that picture I thought had liner removed def worth coating a fair bit exposed there. ??
One last question how many cans did you use for it? I plan to do mine also. Acf-50 looks good

 

Yes it's fine, the axle stands can/should go on the jack points on the sills, so everything is clear for removal.

 

I have bought some Lanoguard after watching a video on YouTube. It had two things in its favour: 1. it seems to work and; 2. it's not toxic to use.

 

Have been looking at the same stuff also confused what to buy so far

 

ACF-50 is non-toxic too, just to clarify.