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Underside Painting


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#1 Coolstuff55

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Posted 20 March 2019 - 03:33 AM

Best way to paint the underside of my mini? Is down to bare metal now. Have been told etch primer then bituminous paint, but also heard this isn't the best... Thoughts and experiences?

 



#2 Daz1968

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Posted 20 March 2019 - 07:04 AM

I used epoxy primer followed by Seam sealing, then tintable raptor, I wouldn't use bitumen paint. If you are unable to spray both paints I used can be rollered on

Edited by Daz1968, 20 March 2019 - 07:04 AM.


#3 dyshipfakta

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Posted 20 March 2019 - 07:17 AM

I did similar epoxy primer, gravitex then top coat I under stand the raptor stuff is good though. Just make sure the primer is fully cured as raptor and gravitex have lots of thinners in so can cause reactions if you are abit hasty. Bituminous paint is for sheds.

#4 danie garry

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Posted 20 March 2019 - 07:58 AM

i sprayed on epoxy, seam sealed and then tintable raptor, the car hasn't seen the road yet but the finish is nice and seems fairly durable



#5 Cooperman

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Posted 20 March 2019 - 10:47 AM

I have used a primer, then Schutz coating, sprayed on, followed by grey primer and body colour.

 

However, I have just been speaking to a farmer friend and if you don't mind the underside being black, 'Tractor Paint' is said to be really excellent. I'm going to try this on the black 1990 Cooper I'm currently doing, although the underside won't be back to bare metal. The idea is that farmers, who are notoriously 'careful' with money, will only use a paint which is good.



#6 absx2

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Posted 20 March 2019 - 12:38 PM

+1 for the epoxy primer and as Cooperman has said for the tractor paint.

I have been using Tractol paint for years and its really good stuff. David Brown Orchid White is on the underside of my daily and several sets of steel wheels.



#7 dyshipfakta

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Posted 20 March 2019 - 03:35 PM

Tractor enamel is ace paint did my subframes in it. Very cheap too

#8 Coolstuff55

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Posted 21 March 2019 - 08:28 PM

Thanks all. Will investigate raptor and tractor paint. Cheers

#9 Cooperman

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Posted 21 March 2019 - 11:58 PM

I just bought a 1 litre can of black tractor paint today.
When I have used some I will report back here

#10 Coolstuff55

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Posted 22 March 2019 - 05:05 AM

I just went out and bought some black raptor. Looks really really good. Do you recommend painting wheel arches body color (white) or underside color (raptor black)? Cheers.

#11 alex-95

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Posted 22 March 2019 - 12:55 PM

I wouldn't use the tractor enamel paint on the underside of the car, unless it's just the stuff I used, it tends to chip off (subframes). I used gravitex on mine and then painted body colour over the top.

 

Wheel arches is up to you, I think it tends to look better in body colour (as well as the sills) but being white might be a bit of a pain to keep clean.






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