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Dinitrol underbody protection. Anyone used this?

Gaston the Grenadier

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Having trawled through all the posts and views on what underbody treatment (if any) to use, I’m looking at going the Dinitrol route.
Firstly, it’s not a quick DIY application; it’s a three day paid for service, by an approved provider. Ergo, it’s going to be expensive.
My neighbour has had a couple of his vehicles done, and couldn’t fault it.
With DIY products, at best they’re only as good as the person applying it, and unless you’re a professional user, then you’re probably going to be taking shortcuts (ie not removing wheels, wheel arches etc).

The process begins with the removal of wheels, arch protectors, covers and any other ancillary parts that hold dirt, and prevents access to the spray gun. Photos are taken of all areas, as well as the customer being notified of areas where rust treatment is required prior to proceeding any further.

The vehicle is then thoroughly pressure washed until properly clean.

Next it’s steam cleaned until any oil or grease based dirt is removed.

Then it’s blow dried, and left in a heated room until absolutely dry. This may take a day/night.

Once proven dry, it’s masked up (prop shaft, engine, transfer box, gearbox, brakes, exhaust, etc).

Then the Dinitrol is applied to the required surfaces.
Other Dinitrol products are then applied to wheel arches, door sills and other parts where the standard Dinitrol is not needed.

Stone chip coatings are then applied to the more vulnerable or exposed parts. It would appear that a number of Dinitrol products are used in combination.

Once photographed again, the vehicle is unmasked, reassembled and left to cure.

The price includes the first 12 month follow up check and reapplication of product(s) where/if required.

Has anyone else had any experience with Dinitrol?

There happens to be an approved Dinitrol provider within 10 miles of where I live, so I’m more than curious as to whether this is the route to go.
I’m reluctant to take Ineos’s word that their treatments are up to it, and as commented on other posts, it’s the fixtures and fittings that are most at risk, not necessarily the chassis.

Any thoughts and comments welcomed on this much discussed topic.
 

SBA

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I had my 2015 Defender 110 waxoiled throughout and it clearly helped not any rust anywhere and it got a good price as I have now sold it. My new vehice will most likely get the same trearment to protect it. I had the paintwork ceramic coated prior to deleivery
 

Gaston the Grenadier

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Did you get any Prices?
Yes.
£1,370.
Looking through the Dinitrol official website they appear to justify the cost mainly by the amount of preparation time undertaken to ensure everything is exposed for coating.
Coming from a shot blasting background I can understand where they are coming from.

For an older cherished vehicle I’d definitely go this route, but for a new vehicle with a long warranty, I think it’s a pointless exercise.
 

Voader - Oudersopzwier

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I use the Dinitrol products on my Defender. I do this myself, just buying the different products. But , I have a 4 ton bridge standing here, and have the place.
But it take me almost 2 weeks that I can't drive with it. The power wash, cleaning all the beams inside with the Karcher. blowing everything true with the compressor. Then at least he has to stand one week inside to dry completely. Get the wheels and all the stuff off that you can dismantle, masking everything. (Including masking the floor and the bridge, you need to spray the products and it is flying everywhere. You best suit yourself up also.)
Then apply the corrosion protection, especially at the inside of the beams. Followed by the underbody protection.
The whole kit cost me +/- 250€, but of cours without any labor.
But no need to do this on the Grenadier, maybe in 5 or 10 years? Depends on what you do with it and if it has damage on the underside due to off roading.
 

ECrider

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I had the underbody preserved with Dinitrol shortly after buying the car. In addition, the cavity was treated with Mike Sander.
We have a Dinitrol specialist company close by.
It cost €750 and took 2 days.
I am very satisfied with it and can recommend it warmly.
View attachment 7828413
that sounds like good value to me.
 

Gaston the Grenadier

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That’s half what it would cost at my Dinitrol centre. 😳
Probably cheaper to drive to Germany to have it done!

Heard only good things about their products (and service).
 

Jörk

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Having trawled through all the posts and views on what underbody treatment (if any) to use, I’m looking at going the Dinitrol route.
Firstly, it’s not a quick DIY application; it’s a three day paid for service, by an approved provider. Ergo, it’s going to be expensive.
My neighbour has had a couple of his vehicles done, and couldn’t fault it.
With DIY products, at best they’re only as good as the person applying it, and unless you’re a professional user, then you’re probably going to be taking shortcuts (ie not removing wheels, wheel arches etc).

The process begins with the removal of wheels, arch protectors, covers and any other ancillary parts that hold dirt, and prevents access to the spray gun. Photos are taken of all areas, as well as the customer being notified of areas where rust treatment is required prior to proceeding any further.

The vehicle is then thoroughly pressure washed until properly clean.

Next it’s steam cleaned until any oil or grease based dirt is removed.

Then it’s blow dried, and left in a heated room until absolutely dry. This may take a day/night.

Once proven dry, it’s masked up (prop shaft, engine, transfer box, gearbox, brakes, exhaust, etc).

Then the Dinitrol is applied to the required surfaces.
Other Dinitrol products are then applied to wheel arches, door sills and other parts where the standard Dinitrol is not needed.

Stone chip coatings are then applied to the more vulnerable or exposed parts. It would appear that a number of Dinitrol products are used in combination.

Once photographed again, the vehicle is unmasked, reassembled and left to cure.

The price includes the first 12 month follow up check and reapplication of product(s) where/if required.

Has anyone else had any experience with Dinitrol?

There happens to be an approved Dinitrol provider within 10 miles of where I live, so I’m more than curious as to whether this is the route to go.
I’m reluctant to take Ineos’s word that their treatments are up to it, and as commented on other posts, it’s the fixtures and fittings that are most at risk, not necessarily the chassis.

Any thoughts and comments welcomed on this much discussed topic.
Hello here is Jörk from Germany
First sorry about my English.
I let it done last week and it cost me 1900€.
Cheers Jörk
 

Gaston the Grenadier

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Hello here is Jörk from Germany
First sorry about my English.
I let it done last week and it cost me 1900€.
Cheers Jörk
Hi Jork.

My German is even worse so no worries!!

Are you happy with the Dinitrol service, and do you feel the price was worth it?

Can you post some pictures from the Dinitrol centre of the work being done, as they say they record before, during and after application.

Cheers.
 

Jörk

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Hi
I got no pictures. The name of the company is Rostschutzklinik and they had done 3 Grennadiers before they made my one. I got a service book from this work and the 1.service is for free. I feel good about there work.
 

Gaston the Grenadier

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That’s good to know. Thanks for your thoughts and information.

Can you take any pics of your Grenadier underneath to show what they have done?
 

trobex

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Why not just coat it all in Samiprime and never worry about it again (except for fire!). Sure the application is messy but one thing the trucks that spray this have so rust where this product resides!!! Then there is the process of clean up 😇
 

Skiprat

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I took mine this week to a friendly workshop with a 4 post lift the day after I picked it up from my Ineos dealer - it was obvious that there’s been some wax injection into the chassis and doors, so I sprayed Dinitrol on the outside of the chassis, the fuel tank guard, the inner sills, any brackets that were just zinc plated-ie brake pipe brackets, the metal brake pipes themselves, and all of the suspension bolt heads, nuts & exposed threads. If I could see into the inner wings through the gaps at the ends of the wheel arch liners then a spray inside was carried out. Didn’t take the wheel arch liners off though.
maybe I’ll delve more deeply later on but I figured I’d best try and protect anything tha likely to have stones flung against it first.
 

trobex

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I took mine this week to a friendly workshop with a 4 post lift the day after I picked it up from my Ineos dealer - it was obvious that there’s been some wax injection into the chassis and doors, so I sprayed Dinitrol on the outside of the chassis, the fuel tank guard, the inner sills, any brackets that were just zinc plated-ie brake pipe brackets, the metal brake pipes themselves, and all of the suspension bolt heads, nuts & exposed threads. If I could see into the inner wings through the gaps at the ends of the wheel arch liners then a spray inside was carried out. Didn’t take the wheel arch liners off though.
maybe I’ll delve more deeply later on but I figured I’d best try and protect anything tha likely to have stones flung against it first.
Zinc plated or hot galvanised? I saw a few videos and photos where the galvanising seems to be an odd -colour as I was expecting to see only HDG coated steel/powder coating on the underside (some of what I can see looks like a zinc coat). Zinc is inferior in almost every way and 'zinc coatings' on parts that are susceptible to moisture/mud/wear etc is not a good solution. Protective coatings then become your friend but also could lead to warranty issues anyway if there is a claim to be made later.
 

Skiprat

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Zinc plated or hot galvanised? I saw a few videos and photos where the galvanising seems to be an odd -colour as I was expecting to see only HDG coated steel/powder coating on the underside (some of what I can see looks like a zinc coat). Zinc is inferior in almost every way and 'zinc coatings' on parts that are susceptible to moisture/mud/wear etc is not a good solution. Protective coatings then become your friend but also could lead to warranty issues anyway if there is a claim to be made later.
To be fair the larger nuts/bolts on the steering & suspension do look a galvanised colour rather than zinc plate. The brackets that hold the steel brake pipes are zinc plated. The brake pipes front-to-rear are painted, but the pipes across the rear axle aren’t. Grabbed a lump of Dinitrol and smeared all of the steel pipes to protect them 👍
 

trobex

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To be fair the larger nuts/bolts on the steering & suspension do look a galvanised colour rather than zinc plate. The brackets that hold the steel brake pipes are zinc plated. The brake pipes front-to-rear are painted, but the pipes across the rear axle aren’t. Grabbed a lump of Dinitrol and smeared all of the steel pipes to protect them 👍
Surely not raw steel haha???
 
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