Under sealing my mk3

Thinking of undersealing my mx apparently prone to rust. Any advice please. How much roughly where to go. Thanks in advance

best advice use the search facility there’s tons of information already on here

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Yes, rust treatment is one of the biggest subjects on the Forum. Happy reading

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Where are you located? Might help re: recommendations.

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I’m in Maldon in between Chelmsford and Colchester. Thanks

If you want to do this yourself, then have a look at this.

I was involved with the product approval, ive used it on mine, it’s brilliant stuff.

You’ll probably get it cheaper if you speak to Janine and mention Keaton sent you.

I would recommend Vincent’s Motor Works (formerly Cleverly Repaired Cars), Stradbroke, Suffolk. MX5 specialist. 01379 384046. Postcode is IP21 5JL

I was very happy with these guys who did my NC2 MX5:

Waxoyl Treatment For Land Rover Defender Discovery Jaguar Mercedes

It needs cavity injection and proper spot treatment of existing rust. Be wary of “undersealing”, which may just mean covering everything up with black gunk, sealing in the existing rust and making things a whole lot worse.

And use something good from the likes of Dinitrol or Bilt Hamber.

I’m in Earls Colne and have mine going to Vincent’s motor works on Friday.

Reviews are positive, and that they do the full job, rather than just plastering the underseal on.

He’s been very helpful with mails back and forth on other bits I’ve got him doing too.

Will let you know what I think when done.

Fair warning; I booked in 5 months ago.

Thanks please get back

Vincent’s workshop emailed me today. There fully booked till next year!! Took mine to garage yesterday they said there’s no rust and they’ve seen a lot worse. Maybe I’ll just have it under sealed if I can find somewhere

Bilt-Hamber do a clear spray wax as well as the Dynax S50 brown cavity wax. If you can borrow ramps, you can DIY. I’d prefer clear wax on the exposed surfaces as black gunk makes it impossible to see what’s hiding underneath, and I wouldn’t touch such a car if I was buying.

Hi, Anand Viad on 07873 293817, he is a highly regarded practitioner in his field and very helpful with expert advice, based near Heathrow.

Thank you very much

I used MX5 Restorer - Unit 19, Potts Marsh Industrial Estate, Eastbourne Rd, Westham, Pevensey BN24 5NH. Knowlegeable, skilled, professional, helpful and do an excellent job.

Did you have rust sorted then under seal and how long did it take please. My garage seem to think I only need under seal

I’d walk away then if that’s their opinion. The rust will continue to rust beneath new under seal. It needs grinding back to metal, then priming then undersealing for maximum life.