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Home > Help Needed / General Tech Chat > Subframe and under body paint??

Mickyclark87

7 Posts
Member #: 11796
Junior Member

Hi thanks for letting me in. 1st post so go easy on me (hopefully it’s on the right sections) currently stripping my mini and rebuilding. What’s peoples opinions on coating subframes once blasted and also the under body of the car? I’ve read mixed reviews about hammerite and powder coat on the frames and not sure what to do under the car? Any input would be great thanks


c2_mad

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384 Posts
Member #: 4215
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i used hammerite. been holding up quite nicely tbh


Pete B

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80 Posts
Member #: 11548
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Calne Wiltshire

For subrames if you have access to spray gun etch primer followed by 2k epoxy primer then either 2k top coat or hammerite


Mickyclark87

7 Posts
Member #: 11796
Junior Member

Great thanks
What about the bottom of the car? A stone chip paint?


jonny f

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Dorking

For the underneath, UPOL acid etch primer, UPOL Gravitex stonechip and them i'm using a 2k basecoat (body paint) over that so its easy to clean.

Edited by jonny f on 26th Sep, 2018.


Rod S

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5988 Posts
Member #: 2024
Formally Retired

Rural Suffolk

I used this for underneath (after etch primer)
https://www.ebay.co.uk/itm/3-STONE-CHIP-ANT...353.m1438.l2649

It's overpaintable but as my car is black I've left it plain apart from the sills.

For that type of can you need the special gun (and obviously a compressor) but the guns are quite cheap. They sell it in aerosol cans too but half the size (so twice the price).

Schrödinger's cat - so which one am I ???


slater

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Suffolk / Birmingham

Hammerite is awful. Avoid like the plague. Use a professional product. Gravitex has been mentioned or maybe raptor. Both are good products.

Subframe probably best powder coat so it gets inside all the nooks.


Tom Fenton
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

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TM legend.

Rotherham South Yorkshire




On 26th Sep, 2018 slater said:
Hammerite is awful. Avoid like the plague.


Totally agree with this. Its only good for a garden gate and even that is questionable.

I've used a 2-pack marine epoxy primer before, its really good stuff, Jotun 87 where the 87 refers to percentage solids.

You mix a resin in it and then use it and it cures. I once mixed too much up so was looking around for something to use it up. I had outside a pair of big axle stands I'd made from angle iron, they were red rust. Painted this stuff on over the top. They still live outside, the paint looks as good as the day I put it on.
Some drops on the garage floor will only come off with a chisel!


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂


Mickyclark87

7 Posts
Member #: 11796
Junior Member

Cheers guys, was hoping to steer away from hammerite lol


cossierick

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3074 Posts
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wakefield West Yorks

Epoxy is he way to go .

A good powder coater on the subframes is fine

Or look into upol raptor !

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