Undersealing/rustproofing
Discussion
Hi all!
I've got the lovely job of painting the bottom of the mgb and half of the midget soon which Is not going to be a nice job :L but got be be done! Both are sound underneath but previous under seal is flaking in places and surface rust developing.
Just wondering what others use as many have strong opinions on whats best
Previously on (half) of the midget I rubbed down any rust patches to bare metal and wire brushed the rest, then used rust buster products www.rust.co.uk , firstly the rust converter then their epoxy mastic paint. it appears to have a good name and is holding up well so far. However was horrible to apply as it ran everywhere and stains! Plus it stinks and took ages!
I've got some waxoyl underbody seal that I was thinking of using, some say its good, some not?
Just fishing to see how everyone's does this job? What's worked worked and been the best to put on? Plus what holds up the best? I've heard of some trapping moisture underneath and causing havoc by rusting underneath which obviously need to be avoided!
I like the rust buster products and have some left, plus the waxoyl under bosy seal, but thought it would be worth seeing what else is out there and one would recommend!
I've got the lovely job of painting the bottom of the mgb and half of the midget soon which Is not going to be a nice job :L but got be be done! Both are sound underneath but previous under seal is flaking in places and surface rust developing.
Just wondering what others use as many have strong opinions on whats best
Previously on (half) of the midget I rubbed down any rust patches to bare metal and wire brushed the rest, then used rust buster products www.rust.co.uk , firstly the rust converter then their epoxy mastic paint. it appears to have a good name and is holding up well so far. However was horrible to apply as it ran everywhere and stains! Plus it stinks and took ages!
I've got some waxoyl underbody seal that I was thinking of using, some say its good, some not?
Just fishing to see how everyone's does this job? What's worked worked and been the best to put on? Plus what holds up the best? I've heard of some trapping moisture underneath and causing havoc by rusting underneath which obviously need to be avoided!
I like the rust buster products and have some left, plus the waxoyl under bosy seal, but thought it would be worth seeing what else is out there and one would recommend!
Edited by Dbest92 on Tuesday 11th June 16:17
After having Dynax (Bilt Hamber) recommended to me I only use that now. entwistlecymru on here is who rec'd it to me and he knows where to get it. though a quick google search and you'll find it yourself
It can be sprayed straight from the rattle can or applied into cavities using the little tube they supply with it.
It can be sprayed straight from the rattle can or applied into cavities using the little tube they supply with it.
It's the S50 you want for ultimate protection, but it is a very dark brown when it dries.
http://www.bilthamber.com/cavity-waxes/dynax-s50
The UB gives more like a traditional underseal finish (I think).
The UC is a very thin clear film which can be removed fairly easily. Dynax suggest you can use it on bits just for the winter for example. I've got some on some underbonnet aluminium parts which were going "furry".
I've always bought direct from the BH website as I've never found anywhere cheaper. Their prices include VAT which most don't until you get to the final checkout...
http://www.bilthamber.com/cavity-waxes/dynax-s50
The UB gives more like a traditional underseal finish (I think).
The UC is a very thin clear film which can be removed fairly easily. Dynax suggest you can use it on bits just for the winter for example. I've got some on some underbonnet aluminium parts which were going "furry".
I've always bought direct from the BH website as I've never found anywhere cheaper. Their prices include VAT which most don't until you get to the final checkout...
200Plus Club said:
this is the underside of my Sunbeam Lotus coated in the clear Bilt hamber UC which comes in a decent size spray can with nozzles. i used 2 large cans to do the full underside, it sets clear if you dont spray too much on in one go
Just to say that looks lovely. My TR6 underneath looked like that at one time too. It's all covered in dirt now but still rock solid after 10 years of year round use.I've got an old Lancia that has been heavily waxoyled underneath, getting the stuff off is a right pain. I've been using a combination of panel wipe to soften it and wire brushes and sandpaper to shift the stubborn bits. Removable parts I've been getting shot blasted.
I'm also using the BH clear as I go - much better stuff!
I'm also using the BH clear as I go - much better stuff!
Waxoyl is white spirit based so that gets it off.
I've also used a hair dryer and a scraper before.
Bilt Hamber is great but I'd only use it in cavities.
On my exposed panels I've used POR15 Chassis coat black.
It dries as hard as nails, and doesn't seem to be affected by anything.
As I'm lazy it means I don't need to check it or retreat it.
I've also used a hair dryer and a scraper before.
Bilt Hamber is great but I'd only use it in cavities.
On my exposed panels I've used POR15 Chassis coat black.
It dries as hard as nails, and doesn't seem to be affected by anything.
As I'm lazy it means I don't need to check it or retreat it.
Classics Monthly had a 3 year test of anti rust paint and cavity wax a couple of issues ago.
Best external paint was the Rustbuster epoxy mastic 121 with Bilt Hamber Electrox being 5th and POR-15 coming 7th.
The best cavity wax was Noxudol 700 and Waxoyl being 2nd . Milspec 3215 3rd , Bilt Hamber S50 3rd
Best external paint was the Rustbuster epoxy mastic 121 with Bilt Hamber Electrox being 5th and POR-15 coming 7th.
The best cavity wax was Noxudol 700 and Waxoyl being 2nd . Milspec 3215 3rd , Bilt Hamber S50 3rd
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