Technology

59651 readers

4234 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS

[email protected]

660

Nissan develops paint that keeps cars cool in summer heat (www.asahi.com)

submitted 3 months ago by [email protected] to c/[email protected]

241 comments fedilink hide all child comments

Nissan Motor Co. said it has developed a new type of paint that significantly reduces the temperature inside vehicles parked in direct sunlight.

The surface of a car coated with the innovative material remains up to 12 degrees cooler than that of a vehicle with standard paint, tests showed.

The company said the coating material can help rein in the temperature rise not only on the car's body but also in the vehicle when exposed to direct sunlight.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 3 months ago (2 children)

Is metal paint and concrete paint the same thing? I'm not a painter

[–] [email protected] 5 points 3 months ago* (last edited 3 months ago)

Ultimately, they can be, but there's lots of differences between them once they reach the bucket you buy. They have different adhesion qualities, but that could be addressed with an appropriate primer. They have different final finish surface requirements, which could be an issue for how the paint works. I remember seeing dragonfly-wing-style paint that was white when viewed perfectly straight buy blue when viewed at any off angle due to a microscopic vertical grid of blue walls. There may also be a required clearcoat component that may not be compatible between the two surfaces. Metal paint is also designed to handle the flex of metal where as concrete paint would barely be concerned about that but possible address crumbling instead.

Edit: and after reading the article, it's a radiative-cooling paint rather than a reflecting coating. Concrete has a much lower thermal conductivity so this may not be effective in transferring heat out of the concrete.

[–] [email protected] 1 points 3 months ago (1 children)

Metal paint is concrete paint. Microsoft paint is abstract paint. This comment is metaphorical paint.

[–] [email protected] 1 points 2 months ago* (last edited 2 months ago)

You mean metaphorical pain. Jk