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Underseal..... is it worth it....?
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Last Boy Scout
 


Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 128

Scotland 2005 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3
Underseal..... is it worth it....?

Hello all.

Recently got a D3 for the first time and looking to keep it long term.

Looking like a fair bit of rust has taken hold underneath.

What’s everyone’s opinion on getting it under sealed even though it’s already 15 years old?

Is it worth it? Any recommendations for place to do it?

Thanks.
  
Post #20748209th Aug 2019 9:53 pm
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galwaygreen
 


Member Since: 30 Oct 2011
Location: plymouth
Posts: 6525

United Kingdom 2016 Discovery 4 3.0 TDV6 Graphite LE Auto Loire BlueDiscovery 4

have a look at disco mickeys project...galvanised chassis..hes in sunny dundeeshire
  
Post #20748279th Aug 2019 10:18 pm
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1771

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

With underseal you need to remove the rust first otherwise it will keep rusting. You can use rust converters first to kill the rust then underseal
  
Post #207486110th Aug 2019 6:04 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Indeed DM chassis what he’s done is a work of art , outstanding Bow down

Does take a while to get the surface rust off, ceramic wheel, wire brush on cordless drill, etc , also removed all the wheel arch liners

Took a few weeks to pressure wash the inside of the chassis and allowing it to dry properly

Then used Dinitrol ,inside and out , handy as the chassis has plenty of drains holes so could see the Dinitrol coming out of the chassis so knew how far u had reached , pleased with the results

Think it’s every 5 x years for a recoat









   
Post #207487310th Aug 2019 7:01 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

It is worth it, as it will last forever. BUT, it needs done properly, and to do it properly isn't cheap...
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #207487610th Aug 2019 7:10 am
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Last Boy Scout
 


Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 128

Scotland 2005 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3

gstuart wrote:
Indeed DM chassis what he’s done is a work of art , outstanding Bow down

Does take a while to get the surface rust off, ceramic wheel, wire brush on cordless drill, etc , also removed all the wheel arch liners

Took a few weeks to pressure wash the inside of the chassis and allowing it to dry properly

Then used Dinitrol ,inside and out , handy as the chassis has plenty of drains holes so could see the Dinitrol coming out of the chassis so knew how far u had reached , pleased with the results

Think it’s every 5 x years for a recoat

Mint!! 😎😎😎😎










  
Post #207488810th Aug 2019 8:31 am
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Last Boy Scout
 


Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 128

Scotland 2005 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3

Anyone got any recommendations of companies who do it?
  
Post #207488910th Aug 2019 8:33 am
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Last Boy Scout
 


Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 128

Scotland 2005 Discovery 3 TDV6 HSE Auto Indus SilverDiscovery 3

Anyone got any recommendations of companies who do it?
  
Post #207489210th Aug 2019 8:34 am
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NJSS
 


Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10464

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

He's a fair distance from you, but if you are serious you should at least talk to Disco_Mikey.

You need to consider the cost/benefit ratio.

Good luck, keep us posted as to what you do.

NJSS
 Am I Gammon or Woke ? - I neither know nor care.

2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t. 
 
Post #207490810th Aug 2019 9:26 am
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andy27
 


Member Since: 07 Oct 2018
Location: Chesterfield
Posts: 82

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

As DiscoMikey says get it done properly not a bodge job like they did on mine, had it done by the dealer i bought it from but big mistake as they had it for 2 days and didn't wash it right underneath as can be clearly see, didn't drop the spare wheel and do in the wheel well as i have overspray on my spare wheel and you can see in the well the shape of the gaps.
  
Post #207537412th Aug 2019 5:52 am
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A.J.M
 


Member Since: 31 Oct 2009
Location: Carluke
Posts: 2813

Scotland 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Just up the road from you at Johnstone is Preserve and Protect.

They get a great write up for treating cars and Searaider on here got his D3 treated with them and was extremely happy with the results.
  
Post #207845825th Aug 2019 9:07 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

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

Its a messy job, but for the money you would pay someone else to do it, you can buy a compressor, airline, wax applicator gun and the wax and probably have some change.

Dont like most people do, assume once its done thats it for life, it isnt, it will need redoing/touching up at least biannually and this is where having your own kit pays off and all it will cost is a gallon of chassis wax and you are good for another year or two.

The ends and lower edges of the sills are a known weak point.
  
Post #207849026th Aug 2019 6:25 am
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