Lotus Elan

peinture ou?

PostPost by: geni » Mon Mar 18, 2019 1:28 pm

ma barre stabilisatrice doit recevoir de la peinture epoxy ou un traitement de bain chimique bicromattage mais pour cela je voudrais connaitre vos avis si un risque existe ?
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PostPost by: billwill » Mon Mar 18, 2019 2:10 pm

My schooltime French was not up to reading that, so I fed it though Google Translate and got:

"my stabilizer bar must receive epoxy paint or a chemical bath treatment bicromattage but for this I would like to know your opinion if a risk exists?"

But I don't know the answer to the question.
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PostPost by: geni » Mon Mar 18, 2019 2:32 pm

merci sait aussi avec Google Translate que je vous lie !
pour le bicromattage y a t'il une r?action chimique qui peu fragiliser ?
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PostPost by: 69S4 » Mon Mar 18, 2019 2:41 pm

You mean if you electroplate the anti roll bar will it become fragile? If so would epoxy paint be a better option?

Don't know.
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PostPost by: 661 » Mon Mar 18, 2019 8:23 pm

I've nickel plated mine.
I can't see that it would effect the strength of an inch thick bar.
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PostPost by: Davidb » Mon Mar 18, 2019 10:04 pm

Why risk it? Paint is easy to apply and repair.

Pourquoi risquer cela? La peinture est facile ? appliquer et ? r?parer

As a Canadian I can google!
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PostPost by: mikealdren » Tue Mar 19, 2019 8:42 am

New roll bars are plated on many modern cars, as 661 says, it's unlikely to affect a thick roll bar. After all, many roll bars work fine with thick layers of rust nowadays.
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PostPost by: el-saturn » Tue Mar 19, 2019 9:36 am

geni - pls do us a favour: use the english (google) version: not all of us are francophile enough! tx sandy PS: i used to go to fr often and even though i speak french THEY just don't like us!!
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PostPost by: geni » Tue Mar 19, 2019 11:03 am

Peu tu expliquer cela; je ne te comprends pas bien !
tu peu faire message priv?
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PostPost by: jimj » Tue Mar 19, 2019 4:09 pm

One time I was behind someone (?) in France at a buffet lunch and the waitress spoke, in French, (quelle surprise !) to this English speaking person, who wasn`t British. So he shouted at her louder and louder. I apologised to her in my schoolboy French and explained that some people from ???????? were *******. Maybe that`s why the French don`t like ????????s.
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PostPost by: geni » Tue Mar 19, 2019 7:29 pm

merci ,je comprend mieux ,mais sache qu'il y a partout des ' brebis galeuse'
si tu savait lors d'un des premiers s?jours au Royaume-Uni moi qui ne pratique pas leur langage oral et ?crit
je fut tr?s d??u de leur collaboration a te venir en aide , mais voil? ont sait fait des amis l?-bas (cela aide)
J"ai faillit tous plaquer !
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PostPost by: Frogelan » Tue Mar 19, 2019 7:46 pm

Bonsoir G?rard

Plusieurs pistes de r?flexion:

- ? l'origine, la pi?ce ?tait peinte, en noir je crois.
- s'il est ?galement envisageable de la bi-chromat?e ?a reste un choix personnel, personne te jugerait.

Les deux m?thodes applique un peu de chaleur, mais en principe les pi?ces sont robustes. Sauf si elle est neuve, ce serait utile de v?rifier si la barre n'est pas tordue!

Si ?a pourrait t'aider, j'ai trait? la totalit? de ma suspension avec une finition en epoxy.

Andrew
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PostPost by: RichardHawkins » Tue Mar 19, 2019 7:55 pm

My French is not up to this subject.

If I remember correctly from my metallurgy lectures, electroplating can result in micro cracks that may propagate into the base material and cause a reduced life.

A Google search leads me to believe that this is only true with chrome plating, it would therefor seem that other materials such as zinc or nickel are safe to use.

Personally I have chosen polyester powder coating.

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PostPost by: baileyman » Tue Mar 19, 2019 8:32 pm

nickel autocatalytique. J'ai fait trois barreaux en ce moment. John
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PostPost by: Jentwistle3 » Wed Mar 20, 2019 7:20 am

Some plating processes can cause hydrogen brittling of the steel which can lead to failures. lotus suffered this problem in the early 60s when they started plating suspension arms on the race cars.

https://en.m.wikipedia.org/wiki/Hydrogen_embrittlement

Certain rust tratments involving acids can also cause this problem and hence are not recommended for high stress components such as suspension bits.

Not all plating processes cause a problem but I don?t know which are safe and which are not.

Personally I?d go for paint as things can rust under powder coat.
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