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| Browjam Member Since: 03 Jun 2014 Location: South East Posts: 114   
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Hi there,
In suspect this has been covered before but here goes....... I was about to pull the trigger on replacing all of the door, bonnet and tail gate bolts with stainless steel bolts when I came across a short article that came up on my browser that basically said stainless steel bolts will not rust but due to ‘galvanic corrosion’ mild steel items like hinges will start to rust much more rapidly. Can anyone advise on this and what are their experiences with fitting and living with stainless steel bolts? Many thanks in advance. James |
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7th Jul 2014 10:24am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11240 
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The usual trick to avoid this is to coat the bolts with ceramic paste such as Duralac. This forms a barrier between the two metals. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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7th Jul 2014 10:44am |
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| Browjam Member Since: 03 Jun 2014 Location: South East Posts: 114
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Cheers,
Pretty obvious I am a newbie to the forum 
Just looked up Duralac. Looks perfect for the job. Will order the stainless steel screws. many thanks. james |
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7th Jul 2014 10:51am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19611
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If it's anything like the Naka stuff it will be anti seize too which really is a must as well.
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7th Jul 2014 10:59am |
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| Tiger Member Since: 06 Jul 2012 Location: Wales Posts: 2265 
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Depends how good your chemistry is.
Steel will rust but it will also when combined with water cause a dissimilar metal to corrode. (The Ali) Basically the water and the two metals when in the presence of an electrolyte (water with bits) make an anode and a cathode which allows the metals to change due to a flow of the electrons. Stainless does this also but it concentrates the process on the dissimilar metal so to speak. So Stainless Steel causes a stronger reaction in the Ali. To get around this you can isolate the two metals. (Google Duralac as above, horrid stuff though) This will help to stop the ions flowing or never ever ever get it wet.  |
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7th Jul 2014 11:19am |
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| leeds Member Since: 28 Dec 2009 Location: West Yorkshire Posts: 8578
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Hi James, apart from galvanic action stainless nuts and bolts can cold weld themselves together know as galling.
We get comments about price of the Nakatanenga stainless bolt kits we sell. Apart from being the only bolt kits having genuine Land Rover door bolt heads they come with a big tube of anti seize paste. The new version of the stainless bonnet hinges we do come with a small sachet of paste as well. Now why don't the other suppliers of stainless bolts for Defenders supply the paste? Brendan |
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7th Jul 2014 11:42am |
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| SailingTom Member Since: 19 Nov 2013 Location: ESSEX Posts: 1709
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Other option is to use plastic washers, for anyone interested this link explains the differences in corrosion fairly well.
http://www.clubmarine.com.au/internet/club...+Technical Defender puma dormobile camper |
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7th Jul 2014 11:52am |
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| rsms Member Since: 12 Jan 2013 Location: Home Posts: 36 
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If it is still the original composition I would keep Duralac off your skin as part of the reason they banned the retail of similar chemicals in sprayable form many years ago (potential carcinogenic). I am using Tef-Gel instead:
http://tefgel.com.au/ http://www.force4.co.uk/7168/Harken-Tef-Ge...Paste.html |
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7th Jul 2014 6:04pm |
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