Paint on cars that change colour

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Discussion Overview

The discussion revolves around the type of paint used on cars that changes color as the viewing angle changes. Participants inquire about the name of this paint and the underlying mechanisms that cause the color variation, exploring both practical and theoretical aspects.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant asks about the name and functioning of the color-changing paint, suggesting it may involve different shades of light reflecting various colors.
  • Another participant refers to the paint as "flip-flop paint" and shares a personal anecdote about a dramatic color change on a motorcycle.
  • A third participant explains that the effect is called iridescence, likening it to phenomena seen in soap bubbles and oil slicks, attributing the color change to light interference from different layers of the paint.
  • A light-hearted comment is made regarding the potential confusion this paint could cause in witness accounts of accidents.
  • A participant expresses appreciation for the information shared, indicating a personal interest in the topic.

Areas of Agreement / Disagreement

Participants generally agree on the name "flip-flop paint" and the concept of iridescence, but there is no consensus on the detailed mechanisms of how the paint works, as some aspects remain unexplored.

Contextual Notes

The discussion does not delve into the specific scientific principles behind iridescence or the exact composition of the paint, leaving some assumptions and details unaddressed.

Who May Find This Useful

Individuals interested in automotive design, paint technology, or optical phenomena may find this discussion relevant.

kateman
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i was wondering what this type of paint (the type you see on cars that changes colour as the car moves around) is called?

and more importantly, how it works?

is it just the different shades of light that reflect the different colours?
 
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The painters I know call it flip-flop paint. Not sure how it works, but some of the color changes can be dramatic. A friend of mine customized his wife's Harley and had it painted with a blue-purple flip-flop. It looks great when she drives by on a sunny day.
 
The effect is called iridescence, and it's the same phenomenon observed when looking at soap bubbles, or an oil slick on water. Interference from light being reflected off different layers of the paint (or oil film) causes the object to appear different colours at varying angles of incidence.
 
It sure messes up witnesses to a hit-and-run. :wink:
 
cool, thanks for that
its been on my mind for a while :smile:
 

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