Best product to protect underneath of trailer

[snipe]

In the process of tidying up our ifor Williams type trailer. It’s a galvanised chassis but starting to chip in places, what would be the best product to protect it with. Is there anything more durable than wax oil?( just for the underside so won’t be on show)

 

[SilliamWhale]

I would have thought probably nothing but keep it clean and inside as much you can?

 

[suffolksmallholder]

Lanoguard has become popular, available and an easy to apply solution.
An annual or bi-annual clean & application may ensure the trailers longevity.
Tip it on its side onto straw bales, spray and then do the opposite.
My old LR was done that way but it did have a roll bar which helped.
SS

 

[snipe]

It’s only a flat trailer so can pick it up with manitou no problem.

 

[Old apprentice]

May not be for a galvanized trailer but Spalding sell a paint it is black but it never sets completely put it on a trailer chassis stops rust and after 6 or 7 years still the same

 

[Ed ardudwy]

As above lanoguard, also son has been doing the truck and a few bits.
He's now using buzzweld which also contains lanolin but a lot cheaper with good reviews. Instead of using thinners he adds waste oil to get it to spray when doing inside of chassis rails. Would be ideal on your trailer painted on with brush I would of thought, seriously sticky stuff warm it up in some boiling water to soften it up makes it easier to paint

 

[snipe]

Thanks will have a look at them all

 

[Pigeon Chit welder]

You can’t beat dinitol 4941 for underbody protection. I used it on my truck and Ford tranny van.

 

[Welderloon]

Best thing is a regular high pressure hot steam clean especially in winter if there is salt on the roads.

 

[Hilly]

It’s galvanised that is the protection , just wash it .

 

[TheTallGuy]

I've used this type of stuff in the past
https://www.cromwell.co.uk/shop/abr...ol-silver-paint-with-zinc-500ml/p/ACN7219763C

Obviously not a good as the original galvanizing, but better than waxoyl type treatments.

 

[TripleSix]

Morris Ankor Wax