Rustproofing.

Buzzweld do something called Lanoguard
not sure if it's what you're after

Lanoguard have a YouTube Channel

@Andy2640:

You appear to be quite mesmerized by a particular lanolin-based product.

While I believe that your appreciation for it is genuine and that you are not a paid promoter, I have strong doubts that you did a comprehensive comparative research of lanolin vs other types of vehicle rust proofing coatings.

You mentioned many advantages of lanolin (some of which are completely irrelevant for this application), but omitted to mention any disadvantages.

Here are some disadvantages and I would like to hear your comments on these:
1. While lanolin itself is harmless and food grade safe, many lanolin-based rust protection products contain various additives, which may not be. Therefore, it is quite assumptive to claim that application of lanolin based products is safe.
2. Some lanolin based products do not dry to a non-sticky resin, remaining sticky, thus attracting dirt and sand onto it, making a mess.
3. Not all lanolin based products are resistant to strong water jets. This is product dependent, as manufacturers balance between viscosity, creep performance, temperature resistance, abrasion resistance, self healing properties and elasticity. I highly doubt that most lanolin based products have this resistance.
4. How easy or hard is to remove old lanolin based coatings?
5. Does every lanolin based product have self-sealing properties?

6. And the biggest topic of all - does lanolin, being a type of wax, have any and which advantages against other high quality wax-based products for automotive rust protection on the market?


Conclusion:
While I do agree that Lanolin is certainly much better than any bitumen / tar or oil based product for this purpose, I am not entirely convinced that it is significantly better than other high quality wax based products. I am interested to know whether you have experience with other wax based products so that you can give us a comparative opinion of Lanolin against them. That is the pivotal point in my opinion.


P.S.: I am not trying to "debunk" you, but quite the opposite - to extract the best and to get the most realistic picture of the actual properties and expectations with that kind of product. I am also in the quest of determining the optimal method of underbody rust protection, and that world is full of misconceptions worldwide.

Any rust preventative product that you apply under the vehicle will be better than nothing, so long as it's applied properly (as in, not over loose rust or moisture)
Just apply your favourite product, and be sure to check the coating annually/re-apply as necessary.

I've just been experimenting with Andys' lanolin of choice on a boat trailer. The immediate impression, I don't like the smell! It's certainly as easy to apply as any other product I've used and once applied the appearance is similar. If the smell wears off in 2 or 3 weeks I'll be happier. I much prefer the machine oil smell of more conventional applications and the environmental benefits of lanolin aren't really floating my boat. Sorry Andy, but I gave it a go. Chris

I've done mine with Bilt Hamber Dynax, drove it home from the dealer and went at it with 3 different options, UB for the underbody, S50 for the cavities and anywhere not subject to harsh environment and UC for areas where I wanted to be able to see the components it was protecting (like the yellow OME dampers)
It took a while with a proper compressed air fed wax injection gun, but I'm very happy with the results and I rate Bilt Hamber stuff very highly

Thanks to Bosanek for his informed comments.
On my Land-Cruiser I used Flag Roofix 20/10 . This is a non bituminous Draylon fibre reinforced compound that was originally formulated to preserve/reinforce or repair flat roofs. It does not harden but the top is not sticky so it will allow flex without cracking. The fibers strengthen the compound and help to resist damage, originally from foot fall but on my usage from anything thrown up from the road or track. I bought 5 litres from Toolstation but they don't list it anymore but they do have Black Jack "all weather roof coating" which sounds very similar.
For chassis rails and axle tubes I used a straight forward black bitumen paint which leaves a thicker than paint finish with a soft but not sticky finish which, again, resists cracking and lasts years.
I am happy that the rear wings have been treated to a satisfactory level but I am looking for something to apply to the inside of the chassis rails and maybe the doors so if anyone has ideas, I would be grateful for them.

Roger