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The mkiv Supra Owners Club

what underseal


paulj1

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Hi guys going to spend couple of days under car with wire brush to get rid of surface rust them want to underseal everything so just wondering what's good to use and what should I avoid. I haven't got a spray gun so would need to be aerosol or brush on.

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Can dinitrol be painted straight on to rust after wire brushing?

 

It can but there's a few different types of Dinitrol. There's one that goes on the rusty parts (neutralises the rust), another that's good for exposed parts (floor pan etc) and another that's good for box sections. I had mine done professionally so I can't recall which type (product number) was used where.

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Stevec out of interest how much did it cost to have yours done?

 

IIRC, it was around £360 a couple of years ago. Not cheap, but it saved me and my garage getting covered in the stuff.

 

Edit: I saw the receipt for work yesterday, it was actually £460.

Edited by SteveC (see edit history)
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Use POR-15 first and then stone chip it in Tetrasyl. The POR-15 can literally be brushed or sprayed directly over the rust and will kill it. If you want to go mental or anal (like i am doing), then wirebrush the rust out, and spray Metal Ready on it first, wait until bone dry, then POR- 15. Am doing my car at the moment, and will do a writeup of my build later.

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