Rustproofing chassis

Richard Lewis

Regular Member
Joined
Dec 10, 2021
Points
6
Hi All
Returned to Z3 ownership after a 20 year gap ☺

wondered if anyone had experience using a rust proofing company - I’ve been speaking with one near Bristol about having either a Dinitrol or Lanoguard cover.
One is typically used for the underside of vehicles like Land Rover defenders.
My plan is to check the sills before and make sure they are in a good place.
Is it worth it? Working on the basis that some level of rust proofing on a 25 year old car is a good idea. Would welcome thoughts.
 

ExMX5owner

Moderator
Staff member
Global Moderator
Supporter
Australian Zeds
Joined
Aug 31, 2022
Points
126
Location
Queensland, Australia
Model of Z
99 2.0
Hi All
Returned to Z3 ownership after a 20 year gap ☺

wondered if anyone had experience using a rust proofing company - I’ve been speaking with one near Bristol about having either a Dinitrol or Lanoguard cover.
One is typically used for the underside of vehicles like Land Rover defenders.
My plan is to check the sills before and make sure they are in a good place.
Is it worth it? Working on the basis that some level of rust proofing on a 25 year old car is a good idea. Would welcome thoughts.
I have always used Lano, down side is, it remains a bit sticky and collects grime, or sand on the beaches I used to drive my Toyota Surf over, That being said, my surf never yielded to rust.. Personally I have seen chassis shots of GB cars, and wonder why they are so corroded... ?, Gimme an Aussie Chassis with a UK low mileage engine,, Please....:)
 

andyglym

Shiny Dust Caps Make Your Zed Go Faster.
Supporter
British Zeds
Joined
Feb 20, 2015
Points
231
Location
Moresby, West Cumbria, England
Model of Z
2.8 Roadster
Hi All
Returned to Z3 ownership after a 20 year gap ☺

wondered if anyone had experience using a rust proofing company - I’ve been speaking with one near Bristol about having either a Dinitrol or Lanoguard cover.
One is typically used for the underside of vehicles like Land Rover defenders.
My plan is to check the sills before and make sure they are in a good place.
Is it worth it? Working on the basis that some level of rust proofing on a 25 year old car is a good idea. Would welcome thoughts.
If you can and have the space have a crack yourself, you'll know what's been done then. Whip the outer sills off and check the inner sills, remove any corrosion and treat with POR15, same process for the outer sills, if salvageable. Same applies to the rest of the underneath.
 

colb

Zorg Guru (V)
British Zeds
Joined
Nov 25, 2012
Points
178
Location
Newport, South Wales,UK
Model of Z
Z3 M43 1.8 (1999) and Z4 E85 2.5 (2003)
Treated my Z3 to a pressure wash underneath years ago, pulled sills off and all wing liners, everything had a good clean, my inner and outer sills were pristine, low mileage car so that helped. On the Z3 when dry it was treated with lots of clear Waxoyl, sprayed on with their application trigger spray and hard to reach cavities I used their applicator extension. The rear of the outer sills got an application of black Waxoyl. This was all carried out about 10 years ago and its still in good condition, always Sorned over the Winters.
When I acquired my Z4 I jet washed the underside with wing liners removed and applied clear Waxoyl to all underside surfaces. I applied Lanoguard to a fellow members E89 Z4 and found it was far easier to apply than Waxoyl, its a lot thinner and covers very well. Downside is its recommended to reapply annually. We had enough left after completing his car and we used it to give my Z4 underside a spray, still had some left for topping up his during the year ahead. Smell from it hangs about a bit but soon dissipates just like Waxoyl does. Not had the car on the lift since to see what its holding up like so can't comment on that. The Z4 is used all year and lives outside.
For ease of application Lanoguard is easier than Waxoyl, with the Waxoyl you can thin it down by heating the can in boiling water which thins it and allows a better flow in a spray gun or their supplied applicator.
 

ChrisD

Dedicated Member
Joined
Nov 29, 2023
Points
28
Location
Evesham
Model of Z
M44
Lanoguard is easy to apply yourself, if so inclined. You can work the 'injector' tool behind the sill covers if you don't want to remove them.
I can't really say how effective it is - better than not doing it though.
 

t-tony

Zorg Expert (II)
Supporter
British Zeds
#ZedShed
Joined
Dec 31, 2013
Points
226
Location
Torksey Lock,Lincoln, England
Model of Z
E89 Z4 23i Auto
Just spotted you’re in N. Lincs. where abouts?

Tony.
 
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