Chassis black?





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  1. #1
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    Default Chassis black?

    Why do you use chassis black?

    Just because it is a cheap solution or does it have very good anti corrosive properties?

    I need to paint the undercarriage of a Ranchero and have to choose between something like Hammerite Direct to Rust or chassis black.

    It is an ex Free State trokkie, so there is not really rust, metal is just starting to get rust colour since it is by us by the coast for 2 months now.

    I want to paint the undercarriage while it is still good.

    I already have a litre of Hammerite direct to rust on the shelf.
    Last edited by pietpetoors; 2020/06/03 at 09:33 PM. Reason: spelfout
    1999 Hilux Raider 4x4 2700i, 'n groene met swart tyres
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    Default Re: Chassis black?

    I don't find those direct to metal paints terribly robust, I'd try get some kind of expoxy paint or something else that's specific for chassis protection, the automotive paint shops must have some options. Chassis black isn't much to write home about, the panel beaters seem to use it just to neaten up repairs and hide overspray.

    The big thing for me is to use high quality product because the biggest cost with these things is your time and labour and you only want to do it once, so use the best product for the job from the get go.

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    Default Re: Chassis black?

    Piet
    i use youtun on the chassis
    it is a 2 pack epoxy product and works like a charm
    i dont trust a "paint" to treat rust sanding paper is a better option
    Grensvegter van LANDROVIA

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    Default Re: Chassis black?

    Quote Originally Posted by blom View Post
    Piet
    i use youtun on the chassis
    it is a 2 pack epoxy product and works like a charm
    i dont trust a "paint" to treat rust sanding paper is a better option
    Is'nt it Jotun?
    We can't change the wind but we can set our sails

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  6. #5
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    Default Re: Chassis black?

    Blom, which one of the Jotun products do you use? I see they have a wide variety of paints.

    Skylark I also trust the direct to rust paints much. I am actually busy doing a long term test where I took 11 different products and painted 11 strips of metal . They are hanging on the roof at the moment.

    I found that most of these water based rust converters start to show rust withn 24 hours (or less) after treatment. It still beats me how you think you can treat rust with something that has water in it.
    Last year I imported a rust converter product which many web sites toat as the best rust converter, it is mostly no 1 or 2 in all these reviews. I tried it and it is the biggest load of crap.

    But anyway, will see what my test reveal within a month or 3.

    In the case of the Ranchero it is really almost no rust. The metal has been sand blasted due to gravel road travel.

    Another thing. Many people put a rubberise product on chassis. If you do not treat the rust first it is even worse.
    I worked on a CJ5 a year ago. The inside looked great, was all rubberised. Until I had to remove a bit and I found there was rust ander the ruberising and because the rubberising locked the corrosion and moisture in it actually made the corrosion worse.

    That is why I do not want to just put something over the metal, I also need something that can de-activate the rust.

    Easy to say use sandpaper, there is just no way you can get in every little corner of a chassis and suspension with sandpaper.

    Yesterday the undercairage was steam cleaned, so most dirt, oil and loose rust should be removed by now.
    1999 Hilux Raider 4x4 2700i, 'n groene met swart tyres
    19 Voertsheck Jeep CJ5 Built on 1984 Nissan Safari mechanics
    2011 Touareg 4.2 V8 Diesel.
    Series IIA Landy being Rebuilt (for the past 4 years)
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    Default Re: Chassis black?

    I use chassis black on all my repairs..... especially on firewall & door frame repairs where you need to get to the “inside” - never had a problem or come-back.

    I find that it’s all about your prep work..... clean properly and acid dip before you coat.
    Bigger bits like diffs, spring packs & chassis are sand blasted & coated with Jotun marine paint. (Tectane PW697 inside the rails)

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    Default Re: Chassis black?

    The best product I've ever used is Deoxidene.

    Paint it on, then you can paint over it as a primer using a proper high impact paint.
    2012 Jeep Sahara Unlimited 3.6 V6
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  10. #8
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    Default Re: Chassis black?

    Is Tectane the same type of thing as Tectyl?
    1999 Hilux Raider 4x4 2700i, 'n groene met swart tyres
    19 Voertsheck Jeep CJ5 Built on 1984 Nissan Safari mechanics
    2011 Touareg 4.2 V8 Diesel.
    Series IIA Landy being Rebuilt (for the past 4 years)
    1963 Willys Traveller


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    Default Re: Chassis black?

    Different manufacturer

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    Default Re: Chassis black?

    Quote Originally Posted by jelo View Post
    The best product I've ever used is Deoxidene.

    Paint it on, then you can paint over it as a primer using a proper high impact paint.
    Yeah that is good stuff. Use it on all rust, let it dry and paint with Plascon Coastcote etch primer afterwards.
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    Default Re: Chassis black?

    Anybody used stone chip type products to prepare a chassis before?

  14. #12
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    Default Re: Chassis black?

    Quote Originally Posted by Wicd View Post
    Anybody used stone chip type products to prepare a chassis before?
    The water based stuff generally is garbage, solvent based versions seem good but expensive

  15. #13
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    Default Re: Chassis black?

    Quote Originally Posted by Skylark View Post
    The water based stuff generally is garbage, solvent based versions seem good but expensive
    I am thinking about Raptor which is solvent based

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