Product Name

[Gagakev]

Looking for the name of product manufacturers use to waterproof the underside of vans
Is it a particular/specific product as I dont want to waste money on run of the mill off the shelf products although I suspect some would do the same job.
Any ideas folks?

 

[Sproket]

Ronseal Fencelife or a similar product .....
The floor must be able to breath, so do not use any varnish, hamerite or underseal as it will trap moisture in.......

 

[Gagakev]

Thanks for that Sprocket good bit of advice about it being able to breath.