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Underseal Rust Proofing DIY Dinitrol
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 689

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3
Underseal Rust Proofing DIY Dinitrol

My 05 D3 is looking pretty shabby underneath and was criticised at MOT.
Read lots of threads of whether to go Waxoyl or Dinitrol but I have not found a guide on how to do it specifically on a D3/4 (good one on defender though).

Assuming there isn't a DIY thread, my questions are (based on going with Dinitrol) as follows, please don't think I'll be offended by stating the bleeding obvious.

1. What needs to be removed before spraying? I'm thinking big the protective plate at the front as well as the rear bumper as towing electrics area is a mess.

2. What needs to be sprayed?

3. What shouldn't be sprayed masked or removed? Brakes obviously masked.

4. Any tips, pitfalls or should I just not bother - lol.

As I say ,I've read up on the process and the product just not the specifics for the D3/4. Any help no matter how obvious welcome.
Thanks in advance...
  
Post #169475521st Aug 2016 9:47 pm
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MGCarr
 


Member Since: 15 Jul 2014
Location: Lancashire
Posts: 696

United Kingdom 2007 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

I am sorry I cannot give you any specific tips for the Discovery but there is another product range that you might like to consider, Bilthamber, they make a range of rust converters and anti corrosion waxes that I have found very successful on MGBs that I have restored and when time and weather conditions permit I will be using on my 07 plate Discovery which is looking disappointingly scabby underneath the rear. How is that most other manufactures seem to have cracked the issue of rust prevention yet LR still seem woefully inadequate?
 
1997 Defender 90 for the kids and I to have a go at some competitive off road RTV and Tyro trials, daughter picked up her first trophy over the August Bank Holiday.
Previous Land Rover history
1996 P38 4.6 V8 Autobiography
1996 Discovery TDi 300
1972 Range Rover 3.5 V8
LWB Hard Top Series 3
LWB Truck Cab Series 2A
Not been without a Land Rover for over 40 years - I must need therapy! 
 
Post #169476421st Aug 2016 10:11 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 689

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Thanks MGCarr I'll check that out. When I look at pics of other jobs, absolutely everything has been sprayed bar the brakes and I just want to make sure there is nothing too sensitive to the stuff or that will catch fire e.g exhaust etc
  
Post #169477221st Aug 2016 10:19 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 5834

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

remove rear plastic wheel arch liners. (a bigger job than it sounds)
and arch cover.

I wouldn't bother removing the engine/gearbox covers. The rust tends to be at the rear of the car.

Don't spray exhaust/plastic as its a waste.

I remove any surface rust, but it depends on the product your using.
Remove spare wheel.
  
Post #169478421st Aug 2016 10:49 pm
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A.J.M
 


Member Since: 31 Oct 2009
Location: Airdrie
Posts: 2722

Scotland 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Mine is getting treated soon. Mine is looking scabby at the back arch area and the chassis has a lot of surface rust I would like treated and cleaned up.
Been quoted £650 for full underside treatment from a company near Glasgow.

All arch liners removed, full underside steam cleaned, old protection removed, any surface rust rubbed down and treated with Dinitrol rust convertor, that's left to cure.
Then all sills, cavities and doors are treated with Dinitrol cavity wax.
Then full underside is done.

They have done a few D3s now. 5 year guarantee with the work.
It will take 4 days to be fully done.
  
Post #169479721st Aug 2016 11:21 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 6221

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

No help at all but my mates 2001 landcruiser is the rustiest car underneath I have ever seen Shocked

Ive waxed a few landrovers now, waxoyl rubbish especially where theres any road spray it wont make 12 months, morris ankor wax pretty damned good sticks like the proverbial and you can still move it with your finger 12 months later.

I always say the same, for what someone will charge for the job, you can buy a compressor, proper wax gun and loads of wax for 1/2 to 2/3rds of the price quoted and still have all the tools, then each year a quick top up/blast over takes 1/2 an hour.

Ive never removed anything or masked any brakes off, exhaust no worries any wax just melts off.

Im not actually sure if the D3/4 needs waxing in the first place, its certainly way better designed than the D1/2/defender rubbish box section affair.

Top tip of the day if the guys name is chris and hes a health nut get your waxing done elsewhere Whistle
  
Post #169480822nd Aug 2016 6:54 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18855

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Just about to do this with an RRS in just now. Have heard nothing but good things about Buzzweld, and will be trying it out this time round Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #169480922nd Aug 2016 7:03 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18855

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Not particularly cheap, but looks to be a good range of products Thumbs Up

http://buzzweld.com/products/2k-x-treme-aerosol-cavity-kit

http://buzzweld.com/products/cio-125ml-5000ml

http://buzzweld.com/p/product-testing
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #169483422nd Aug 2016 9:00 am
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john watson
 


Member Since: 10 Nov 2011
Location: lanark
Posts: 648

Scotland 2007 Discovery 3 TDV6 XS Manual Zermatt SilverDiscovery 3

Mike,

Take it you will keep us informed how you get on. Anything must be better than Hammerite
  
Post #169485122nd Aug 2016 9:47 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18855

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

This is an 06 RRS, that lives on the coast of rural Aberdeenshire. A perfect test of any rustproofing product Laughing








 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #169485622nd Aug 2016 10:01 am
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Travel itch scratching on pause. :-(
Posts: 66661

United Kingdom 

Could this be a regular MMP thing? Question Question
   
Post #169487122nd Aug 2016 10:39 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18855

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

You never know Wink Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #169488122nd Aug 2016 11:09 am
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Travel itch scratching on pause. :-(
Posts: 66661

United Kingdom 

Thumbs Up
   
Post #169490722nd Aug 2016 12:13 pm
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trailhound
 


Member Since: 27 Aug 2015
Location: Colchester
Posts: 689

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

Pete K wrote:
remove rear plastic wheel arch liners. (a bigger job than it sounds)
and arch cover.



I'd considered this. Any comments on why it's a big job Pete?
  
Post #169494222nd Aug 2016 3:20 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 5834

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

On an RRS there are two screws that hold it in place (at the bottom). Mine were so rusted they needed grinding off.

Worth doing as there can be a lot of mud and rust in the wheel arch bottom
  
Post #169503622nd Aug 2016 8:16 pm
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