# @stem_antics on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DU-7xQFkV2t
- **Gondola URL:** https://gondola.cc/posts/61935909-stem-antics-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/4236eda495.jpg
- **Posted:** 2026-02-20T14:38:03.000+00:00
- **Account Owner:** Stem Antics (@stem_antics) — https://gondola.cc/stem_antics

## Caption

Here’s what’s happening:

• A polyol + an isocyanate react
• Heat is released (exothermic reaction)
• Gas forms inside the mixture
• The material expands and hardens at the same time

That’s how you get lightweight, durable foam used in insulation, car seats, soundproofing, packaging — even aerospace.

And the black color? That’s usually carbon black — added for UV resistance, conductivity control, and durability.

Chemistry + materials science + industrial engineering = everyday magic.

Want more “how it’s made” deep dives like this?
Drop a 🧪 in the comments and share this with someone who loves hidden science.

#STEMeducation #MaterialsScience #Polyurethane #ChemistryReels #EngineeringLife

## Stats

- **Views:** 24,795
- **Likes:** 478
- **Shares:** 0
- **Comments:** 13

## Tags

engineeringlife, materialsscience, chemistryreels, stemeducation, polyurethane

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