best way to protect painted finish on underside of vehicle

[sackmcgannay]

I have spent ages painting the underside of my bus with
etch primer
stone chip
final 2k top coat - same colour as body of bus

I konow i can use underbody shutz sealant (the black stuff) but am looking for something that will protect and stay clear
I have heard of ankor wax but wondered how long a coating would last on the underside of the vehicle and if there is a better product i could use?

 

[Doris]

I'm in the same boat mate,painted the underside to match the body. The only thing I can think of is clear waxoyl,however,that is a yellowy colour and does get grubby with time.

 

[Heebee_GB]

I've heard really good things about the dinitrol range of products. I'm going to try this once I've cleaned underneath. http://www.frost.co.uk/item_Detail.asp?productID=9342&frostProductName=Dinitrol%20Corroheat%204010%20(500ml" onclick="window.open(this.href);return false&catID=&frostCat=&frostSubCat=&subCatID=

 

[The zer]

ill be keeping an eye on this as i was going to waxoyl but didn't know about the yellowing.Heres mine.