Baremetal underbody restoration
Discussion
Hi all,
Currently removing factory undercoating on my Mazda Eunos & welding up all the little holes (only found 3 on the hole car so very happy!) & getting ready to recoat in something that will hopefully last as good if not better than the factory undercoat that has lasted very well over the past 20 years!
I managed to make my own jig following something pretty similar i found online so after lots of wire wheels/grinding etc i am now getting to clean metal all over. I'm just waiting for a little sand blasting kit for home use to get into those tight & ennoying areas! All minor pitting is either being grinded away or treeated with Hydrate 80.
My question is what products would people recommend for reprotecting?
Buzzweld?
Bilt Hamber?
Raptor liner?
Currently removing factory undercoating on my Mazda Eunos & welding up all the little holes (only found 3 on the hole car so very happy!) & getting ready to recoat in something that will hopefully last as good if not better than the factory undercoat that has lasted very well over the past 20 years!
I managed to make my own jig following something pretty similar i found online so after lots of wire wheels/grinding etc i am now getting to clean metal all over. I'm just waiting for a little sand blasting kit for home use to get into those tight & ennoying areas! All minor pitting is either being grinded away or treeated with Hydrate 80.
My question is what products would people recommend for reprotecting?
Buzzweld?
Bilt Hamber?
Raptor liner?
Loving that you built a rotisserie! Good effort!
Dinitrol is the aftermarket undercoating of choice these days... It's certainly a good product and has benefits such as self-healing when it gets knocked/chipped. It's what's used by this well-regarded outfit: https://www.pistonheads.com/gassing/topic.asp?h=0&... . On the strength of the PH article we took the S2000 there and had the full job. It gets all-weather, year-round use and a couple of years and 10-15k miles later it still looks fantastic underneath. If it can stand up to winter salt, slush, rain and so on then it's going to be fine for more of a high days and holidays car.
I wouldn't be able to hand-on-heart say it's the best thing in your enviable situation of a completely blank canvas and easy-access to the underside, but it certainly wouldn't be a bad choice and has the benefit of being maintainable if it eventually gets erroded anywhere.
Dinitrol is the aftermarket undercoating of choice these days... It's certainly a good product and has benefits such as self-healing when it gets knocked/chipped. It's what's used by this well-regarded outfit: https://www.pistonheads.com/gassing/topic.asp?h=0&... . On the strength of the PH article we took the S2000 there and had the full job. It gets all-weather, year-round use and a couple of years and 10-15k miles later it still looks fantastic underneath. If it can stand up to winter salt, slush, rain and so on then it's going to be fine for more of a high days and holidays car.
I wouldn't be able to hand-on-heart say it's the best thing in your enviable situation of a completely blank canvas and easy-access to the underside, but it certainly wouldn't be a bad choice and has the benefit of being maintainable if it eventually gets erroded anywhere.
I used POR 15 on the underside of mine. Much of the downsides of POR15 are the way in which is has to be applied, which are all mitigated given you've got the car back to bare metal and have it on a spit. I've certainly found it pretty chip resistant so far and it is reported to be quite hard wearing over time.
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