Carry on using underseal??

[Morrisminormo]

My car currently has its underside covered in underseal, and inside the boot. My question is shall I continue to apply underseal as a rust protector, or shall I use something else? I use my car daily and will be using it throughout the winter months.
Any tips or ideas that will help protect my car from the elements will be appreciated.

Thanks

[irmscher]

Anything that stops the rust I would leave Waxoyl is good as is Dinitrol

[kevin s]

My experince over many years of old car ownership would be:

Underneath where it gets stone pecked keep the unsderseal but regularly maintain it, check for loose areas and wash it clean iregularly, also overcoating it with waxoil works keeps it flexible and seals any smal cracks.

For the engine compartment and boot I prefer a bodycolour finish, any corrosion is spotted earlier and it is much nicer to work on / put stuff in. For the winter you can apply clear waxoil to the engine compartment which will go dirty but can be wiped of with turps in the spring.

Probably most important thugh is to treat the cavities, old cars seem to rot from the inside out I use a mix of clean 20/ 50 oil and waxoil applied every couple of years which gives excellent creep properties .

kevin

[irmscher]

The good thing about waxoyl is you can get a pump for the cavity areas and can can drill and cap them . I always leave Waxoyl in hot water first to thin it

[Morrisminormo]

Thanks for advise, how many holes for the cavity? And what size?
I have a tin of waxoil that from 5 years ago. Unopened and never got used! I stick to underseal underneath, but what about under arches etc?

[bmcecosse]

The underseal dries out and cracks - letting moisture in, and it then works it's damage under the seal...... So check it all v carefully and scraps off any dodgy looking parts - treat any rust and then re-seal. Waxoyl as others have suggested needs to be HOT and also I thin slightly with white spirit so it will spray well with my compressor driven waxing gun. You shouldn't seal all cavities completey - some ventilation and drain holes are necessary.