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bouton de la main
Enveloppe moyenne cible

Glossary entry

français term or phrase:

Grains

anglais translation:

Dirt inclusions

Added to glossary by Aideen Rodrigues
Dec 28, 2021 13:36
2 yrs ago
30 viewers *
français term

Grains

français vers anglais Technique / Génie Industrie automobile / voitures et camions
This is part of a PPT presentation on paint defects in the automotive industry. As it's a PPT, context is somewhat lacking. The slides state the fault, the possible causes and the consequences. This one is just titled 'Grains'. The description is 'Surface rugueuse et irrégulière. Peut apparaitre à l'application ou au séchage.' Does anyone have any experience with paints? Similar presentations I've seen in English have sections on 'trapped dirt', but I'm not sure if this is the correct term.
Proposed translations (anglais)
4 +3 Dirt inclusions
4 dirt
Change log

Dec 28, 2021 13:47: Aideen Rodrigues changed "Field (write-in)" from "Marketing document on eco" to "(none)"

Discussion

Aideen Rodrigues (asker) Dec 29, 2021:
@Althea Yes, I had seen that one, thanks! I have been given another document this morning in which they refer to 'support pollué, peinture polluée', related to cleaning, ambient dust and 'grains'. So it's not salt and pepper effect, but I'm much happier to use CadastreToulous' suggestion. Thanks everyone :-)
Althea Draper Dec 28, 2021:
This manufacturer describes defect no. 5 as 'grains' in the French version of its brochure and as 'salt and pepper effect' in the English version, however, it doesn't mention roughness, just the visual appearance of the 'grains'. Do you have any description of the cause of the 'grains'?

https://www.standox.com/content/dam/EMEA/Standox/FR/Public/D...
https://www.standox.com/content/dam/EMEA/Standox/HQ/Public/D...
Aideen Rodrigues (asker) Dec 28, 2021:
There are photos throughout the ppt, but nothing unfortunately on this slide. The ppt is for training purposes - unlikely the company involved would actually have these problems.
chris collister Dec 28, 2021:
@ Aideen I wasn't suggesting that the effect was, in fact "orange peel", but just that another effect (this one) could be described as "grainy". Perhaps the ppt has some helpful pictures? But CadastreT might indeed be right: small establishments could well be less meticulous than, say, Mercedes or VW.
Aideen Rodrigues (asker) Dec 28, 2021:
There is another section in the ppt devoted to 'orange peel', so no, in this case that's not what they're talking about.
Bourth Dec 28, 2021:
@ Chris - Re. spray booths The site I quoted from - https://www.axalta.com/content/dam/NA/HQ/Public/Axalta/Docum... - gives a number of potential causes for 'dirt inclusion' in spray booths. Not everyone is meticulous as they should be, I suppose.
chris collister Dec 28, 2021:
I do wonder about "dirt" or "grains". If this paint is abeing applied to a vehicle, cleanliness is usually meticulous so the probability of dirt or even dust getting into the painting booth is very small. There is an effect known as "orange peel", and I wonder whether the meaning here isn't just "grainy in appearance"? i.e. due to the wrong temperature, too much paint, excessive flow speed from the nozzle, etc.

Proposed translations

+3
24 minutes
Selected

Dirt inclusions

Other terms, including 'grains', are also possible.

GRAINS
Description
Surface rugueuse et irrégulière du film de peinture que l'on sent facilement en passant la main dessus. Les particules sont souvent complètement incrustées et couvertes par le film de peinture.
Cause
Particules contaminantes intégrées à la peinture. Elles peuvent résulter :
1. De poussières, d'impuretés ou de fils tombés d'un chiffon ou de vêtements, ou expulsés de moulures ou de joints de panneaux au cours de la pulvérisation, qui vont se fixer sur le film de peinture humide.
2. De poussières qui n'ont pas été correctement enlevées de la surface avant la pulvérisation.
3. De particules en suspension dans l'air, qui se fixent et s'incrustent dans le film de peinture pendant ou juste après la pulvérisation.
4. De la présence d'impuretés dans la peinture ou les diluants, résultant de bidons ouverts ou rouillés.

DIRT INCLUSIONS
Also known as: bits, dirt in paint, seed, GRAINS, specks, spikes, grits
Description
A surface with this defect will show particles of different sizes deposited in the primer or color.
Origin and Potential Causes:
• Various types of contamination typically introduced during the application or drying process.
• Static charge on surface of vehicle. This condition helps the attraction of dust.
• DUST AND DIRT from dry sanding, cloths, etc.
• Use of poor quality masking paper.
• Tack rag was not used before spraying, or not immediately before. • Inadequate filtration of air.


--------------------------------------------------
Note added at 1 day 21 hrs (2021-12-30 11:13:08 GMT)
--------------------------------------------------

For the record, the French excerpt above is from https://fr.selemix.com/fr/défauts-de-peinture/grains/.
Which has its English counterpart, https://en.selemix.com/en/technical-support/paint-defect-gui...

The English exerpt is from https://www.axalta.com/content/dam/NA/HQ/Public/Axalta/Docum...
Paint defect guide = https://en.selemix.com/en/technical-support/paint-defect-gui...
https://fr.selemix.com/fr/défauts-de-peinture#

Note from asker:
Great - that wasn't a document I had come across. Lots of other useful information as well - thank you!
Peer comment(s):
agree philgoddard : Grains seems the obvious choice.
30 minutes
agree Anastasia Kalantzi
2 heures
agree Daryo
1 jour 11 heures
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Thanks everyone for all your help. "
23 heures

dirt

See the two links for the PPG site, in French and in English, were the particular defect is described.
One can also see and compare the upstream page of both FR and EN links above.
Reference:

https://fr.ppgrefinish.com/fr/d%C3%A9fauts-de-peinture/grains/

https://uk.ppgrefinish.com/en/paint-defects/dirt/

Note from asker:
Thanks, yes, I had found that one - very useful.
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